Threat Database Trojans Trojan.MSIL.Agent.HLB

Trojan.MSIL.Agent.HLB

By CagedTech in Trojans

Analysis Report

General information

Family Name: Trojan.MSIL.Agent.HLB
Signature status: No Signature

Known Samples

MD5: 652bd1a3202919fd278aef6e4ee7d375
SHA1: 2a6883eae32ae479b74be32277e9cbc32f225a62
SHA256: CADDB7D77AC56FF2842D9B459B1A3A2A8CEF9E73A050933B04272F02A920004A
File Size: 2.96 MB, 2958463 bytes
MD5: 682ae74090752639ac7b91eac0002469
SHA1: 4c3170f7804e0e636531f4da3f6acbb2d4fcc080
SHA256: 2EBF36C4854190BEC5B1BB36FED7F09C3636DBD96572545F05CF1968ABBA93DE
File Size: 7.63 MB, 7629824 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have relocations information
  • File doesn't have security information
  • File is .NET application
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
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  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

Windows PE Version Information

Name Value
Assembly Version 3.6.6.0
Comments Программа для раскрутки группы и продвижения
Company Name Dmss Soft
File Description OkSender Ultra
File Version 3.6.6.0
Internal Name OkSender.exe
Legal Copyright Dmss-Group ©2023
Original Filename OkSender.exe
Product Name OkSender Ultra
Product Version 3.6.6.0

File Traits

  • .NET
  • HighEntropy
  • RijndaelManaged
  • x86

Block Information

Total Blocks: 1,205
Potentially Malicious Blocks: 128
Whitelisted Blocks: 35
Unknown Blocks: 1,042

Visual Map

x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x ? ? ? ? ? x ? x x ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x ? ? ? ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x x ? ? ? ? ? ? ? ? ? ? ? ? ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x ? ? x x x x x x x x x x x x x x x x x x x x x x ? x x x x x x x x x x x x x x x x x x x x x x x x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x ? ? ? ? x ? ? ? x ? ? ? ? ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x ? ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? 0 0 0 ? ? ? x x x ? ? ? ? ? ? ? x 0 ? ? ? x x x ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? x x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 ? x ? x x ? x ? x ? x ? 0 ? ? ? x ? ? ? x ? ? ? x x ? 0 ? x ? ? x ? x ? x ? x x ? 0 ? 0 ? x ? x 0 ? 0 ? x ? 0 ? ? ? x ? ? ? ? x ? x 0 ? ? ? ? ? x ? ? 0 ? ? x x x ? 0 0 ? x x ? ? ? ? ? ? ? x ? 0 x ? x ? ? ? x 0 ? x 0 ? x 0 ? ? ? ? ? ? ? ? ? ? ? x x ? ? ? ? ? ? x ? ? ? ? x ? x ? x ? x ? 0 x x x x ? ? ? x x ? ? ? ? x ? 0 x 0 x ? ? ? ? ? ? ? ? 0 0 ? ? x ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 0 0 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 0 ? ? ? ? ? ? ? 0 0 0 ? ? ? ? ? ? ? ? 0 ? ? ? ? ? ? ? ? ? 0 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Files Modified

File Attributes
\device\namedpipe Generic Read,Write Attributes
\device\namedpipe Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_03299e11\file_46da8a95.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_03299e11\file_69abfeaa.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_03299e11\file_db11b13d.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_03299e11\file_ddd5043e.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_2cf8be07\file_4a5a03c0.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_83791bb2\file_0a3a8a23.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_83791bb2\file_96a0692f.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_b92bd4e1\file_03e485fb.txt Generic Write,Read Attributes
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c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_b92bd4e1\file_07ca3769.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_b92bd4e1\file_a2609c79.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_b92bd4e1\file_f7053549.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_2a5ef31f.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_56e0afce.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_5e8049eb.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_8c920409.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_f7aed805.txt Generic Write,Read Attributes
c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\svchost.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\appdata\local\temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(1).exe Generic Write,Read Attributes
c:\users\user\appdata\local\temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(2).exe Generic Write,Read Attributes

Registry Modifications

Key::Value Data API Name
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe ⟘ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe ⵬⟘ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe 跱⟘ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe ⟘ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe 搆⟘ǜ RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\winlogon::userinit C:\Windows\system32\userinit.exe,C:\ProgramData\WindowsService.{D20EA4E1-3957-11D2-A40B-0C5020524153}\svchost.exe RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe 瞛⟘ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe ⟘ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe 霐⟘ǜ RegNtPreCreateKey
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HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe 鄲⟘ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe 扔⟘ǜ RegNtPreCreateKey

Windows API Usage

Category API
Anti Debug
  • IsDebuggerPresent
User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
  • WriteConsole
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcConnectPort
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
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  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtCreateUserProcess
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFlushProcessWriteBuffers
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtGetContextThread
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenSymbolicLinkObject
  • ntdll.dll!NtOpenThread
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryEvent
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationJobObject
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySymbolicLinkObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetContextThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetTimer2
  • ntdll.dll!NtSetValueKey
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtSuspendThread
  • ntdll.dll!NtTerminateProcess
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForMultipleObjects
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • UNKNOWN
  • win32u.dll!NtGdiBitBlt
  • win32u.dll!NtGdiCreateBitmap
  • win32u.dll!NtGdiCreateCompatibleDC
  • win32u.dll!NtGdiCreateDIBitmapInternal
  • win32u.dll!NtGdiCreateSolidBrush

22 additional items are not displayed above.

Encryption Used
  • BCryptOpenAlgorithmProvider
Other Suspicious
  • AdjustTokenPrivileges
Process Terminate
  • TerminateProcess

Shell Command Execution

C:\Users\Xyydnqnd\AppData\Local\Temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(1).exe
C:\Users\Xyydnqnd\AppData\Local\Temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(2).exe
WriteConsole: SERVICE_NAME:
"cmd.exe" /c schtasks /create /tn "WinServiceTask" /tr "C:\ProgramData\WindowsService.{D20EA4E1-3957-11D2-A40B-0C5020524153}\svchost.exe" /SC MINUTE /MO 1 /RL HIGHEST /IT /F
WriteConsole: SERVICE_NAME:
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C:\WINDOWS\system32\schtasks.exe schtasks /create /tn "WinServiceTask" /tr "C:\ProgramData\WindowsService.{D20EA4E1-3957-11D2-A40B-0C5020524153}\svchost.exe" /SC MINUTE /MO 1 /RL HIGHEST /IT /F
"cmd.exe" /c timeout 5 >nul && del "C:\Users\Xyydnqnd\AppData\Local\Temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(2).exe"
WriteConsole: [SC] ControlServ
C:\WINDOWS\system32\timeout.exe timeout 5
WriteConsole: SERVICE_NAME:
WriteConsole: [SC] ControlServ
WriteConsole: [SC] ChangeServi
WriteConsole: [SC] ChangeServi

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