Threat Database Trojans Trojan.MSIL.Krypt.DSM

Trojan.MSIL.Krypt.DSM

By CagedTech in Trojans

Analysis Report

General information

Family Name: Trojan.MSIL.Krypt.DSM
Signature status: No Signature

Known Samples

MD5: 1edee2235908104682c42dfcc6eb9e1f
SHA1: 5d26bb5df90bc7e6f31b0ad38603db0e8287378a
File Size: 684.54 KB, 684544 bytes
MD5: 654a65df58602224ba1aeb4ae8cda260
SHA1: e6cd1685ecc444fc0b680203af93daf9a1d7c861
File Size: 563.20 KB, 563200 bytes
MD5: c575968b3df5f0a8b2a022d14fab01f6
SHA1: f2c4138136c3bb7227d652ce8a17bd966e5c2477
File Size: 564.74 KB, 564736 bytes
MD5: 1ef3f4623579cefbcc900a2b242da2fb
SHA1: c4a1cd1da3f72ea68738b459a9b4524c7eb1a1fe
File Size: 329.73 KB, 329728 bytes
MD5: 080caf6c300693dbcada721509025289
SHA1: fe2259dc604422da76ab63b9369606b430cb31e5
File Size: 564.74 KB, 564736 bytes
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MD5: b94d3eebff6476dd5ebc101c113d9c33
SHA1: 1a2c1b663abd5e60d1b36cce9f635c3c321fbaa8
SHA256: 41C431DC6129D57E0DF76F13655B4211698A3E1457785E84E85DDD2C1A345E4B
File Size: 570.37 KB, 570368 bytes
MD5: 4d78cb349791b6776d2633922b15a275
SHA1: ea11284df1efb782dd72f4208423392d4626a6ec
SHA256: C074B71C08404244C0C255628BCE4ED016496CFC69C123E8AD5A557325F4EB7A
File Size: 565.25 KB, 565248 bytes
MD5: 599b8b6b1da353611d2cb69f42b6abe8
SHA1: 2ecd2c88a6e520b9fc55560f0bcbb07739896364
SHA256: E18C0DE1C02B441DFD565886636022E976F1B2450E3928C43696B7B1018993AB
File Size: 568.83 KB, 568832 bytes
MD5: 36ac7209abb7af4c36b5884011678f99
SHA1: 94bda496e45763ed3696380a80097a84275eed20
SHA256: C8CF2C9511D58A02D7B261D59F00B190F248533C5BD636C81A98E0B0FB818DAA
File Size: 568.32 KB, 568320 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 64-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
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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)

Windows PE Version Information

Name Value
Assembly Version 1.0.0.0
File Version 1.0.0.0
Internal Name
  • Bcesuajgcga.exe
  • Dbmppicuecs.exe
  • Gfqclcs.exe
  • Haffginbxji.exe
  • Halvpvx.exe
  • Hlitxmmnmze.exe
  • Iuqsrlzi.exe
  • Lpbas.exe
  • Mcekk.exe
Original Filename
  • Bcesuajgcga.exe
  • Dbmppicuecs.exe
  • Gfqclcs.exe
  • Haffginbxji.exe
  • Halvpvx.exe
  • Hlitxmmnmze.exe
  • Iuqsrlzi.exe
  • Lpbas.exe
  • Mcekk.exe
Product Version 1.0.0.0

File Traits

  • .NET
  • GenKrypt
  • HighEntropy
  • x64
  • x86

Block Information

Total Blocks: 7
Potentially Malicious Blocks: 2
Whitelisted Blocks: 1
Unknown Blocks: 4

Visual Map

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

Similar Families

  • MSIL.Krypt.DSM

Files Modified

File Attributes
\device\namedpipe\pshost.133973821311183692.1568.defaultappdomain.powershell Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288
c:\users\user\appdata\local\temp\__psscriptpolicytest_nbcp3mgt.q23.psm1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_xfww1hg0.0m0.ps1 Generic Write,Read Attributes

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtCancelTimer2
  • ntdll.dll!NtCancelWaitCompletionPacket
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
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  • ntdll.dll!NtCompareSigningLevels
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtCreateTimer2
  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtCreateWorkerFactory
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFlushProcessWriteBuffers
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtGetCachedSigningLevel
  • ntdll.dll!NtGetContextThread
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtNotifyChangeKey
  • 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!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • 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!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtResumeThread
  • 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!NtSubscribeWnfStateChange
  • ntdll.dll!NtSuspendThread
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtUnsubscribeWnfStateChange
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForMultipleObjects
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • ntdll.dll!NtYieldExecution
  • UNKNOWN
  • win32u.dll!NtGdiBitBlt
  • win32u.dll!NtGdiCreateBitmap
  • win32u.dll!NtGdiCreateCompatibleDC
  • win32u.dll!NtGdiCreateDIBitmapInternal
  • win32u.dll!NtGdiCreateSolidBrush

20 additional items are not displayed above.

User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserName
  • GetUserNameEx
  • GetUserObjectInformation
Encryption Used
  • BCryptOpenAlgorithmProvider
  • CryptAcquireContext
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
Other Suspicious
  • AdjustTokenPrivileges
Network Winsock2
  • WSAConnect
  • WSASocket
  • WSAStartup
Network Winsock
  • closesocket
  • setsockopt
Process Shell Execute
  • CreateProcess

Shell Command Execution

"powershell.exe" -NoProfile -ExecutionPolicy Bypass -Enc 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