Threat Database Trojans Trojan.Downloader.Small.HA

Trojan.Downloader.Small.HA

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 25,803
Threat Level: 80 % (High)
Infected Computers: 2
First Seen: October 26, 2021
Last Seen: December 29, 2025
OS(es) Affected: Windows

Analysis Report

General information

Family Name: Trojan.Downloader.Small.HA
Packers: UPX
Signature status: No Signature

Known Samples

MD5: 18cb68ce8b24f3f057d557140c82ae10
SHA1: 4faedda49f66e36f8c044b0bf840295352654c22
SHA256: 66176AD49350EB0CAB418F4898531DFBEBF7742C678C1673E1F2D552EA76B61D
File Size: 10.75 KB, 10752 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 resources
  • File doesn't have security information
  • File has been packed
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
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  • File is Native application (NOT .NET application)
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • No Version Info
  • packed
  • x86

Block Information

Total Blocks: 56
Potentially Malicious Blocks: 9
Whitelisted Blocks: 47
Unknown Blocks: 0

Visual Map

x x 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 x x 0 0 0 x 1 0 0 0 x 0 0 0 0 0 0 x 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Downloader.Small.HA

Files Modified

File Attributes
c:\users\user\appdata\local\temp\a68b.tmp Generic Write,Read Attributes
c:\users\user\downloads\tmpfile0.bat 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 볻ᙧ畓ǜ RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 RegNtPreCreateKey
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HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe ៵畓ǜ RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 RegNtPreCreateKey

Windows API Usage

Category API
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
  • ShellExecute
  • WinExec
  • WriteConsole
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
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  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenMutant
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetTimer2
  • ntdll.dll!NtSubscribeWnfStateChange
  • 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
  • UNKNOWN
Anti Debug
  • IsDebuggerPresent
User Data Access
  • GetUserObjectInformation
Process Terminate
  • TerminateProcess

Shell Command Execution

"tmpfile0.bat"
WriteConsole: =-=-=-=-= Regist
WriteConsole: .
WriteConsole: .
WriteConsole:
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WriteConsole: c:\users\user\DO
WriteConsole: regsvr32
WriteConsole: /c /s c:\dinema
WriteConsole:
C:\WINDOWS\system32\regsvr32.exe regsvr32 /c /s c:\dinema\santoni\Bin\colorwellN3.ocx
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: regsvr32
WriteConsole: /c /s c:\dinema
WriteConsole:
C:\WINDOWS\system32\regsvr32.exe regsvr32 /c /s c:\dinema\santoni\Bin\colorselectorN2.ocx
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: regsvr32
WriteConsole: /c /s c:\dinema
WriteConsole:
C:\WINDOWS\system32\regsvr32.exe regsvr32 /c /s c:\dinema\santoni\Bin\LanguageselectorN2.dll
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: regsvr32
WriteConsole: /c /s c:\dinema
WriteConsole:
C:\WINDOWS\system32\regsvr32.exe regsvr32 /c /s c:\dinema\santoni\Bin\MacN5.dll
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: regsvr32
WriteConsole: /c /s c:\dinema
WriteConsole:
C:\WINDOWS\system32\regsvr32.exe regsvr32 /c /s c:\dinema\santoni\Bin\MacBrowserN5.dll
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: regsvr32
WriteConsole: /c /s c:\dinema
WriteConsole:
C:\WINDOWS\system32\regsvr32.exe regsvr32 /c /s c:\dinema\santoni\Bin\SGConverter.dll
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: goto
WriteConsole: DONEOCX
WriteConsole:
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: call
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: call
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: call
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: call
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: call
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: call
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: call
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: call
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: c:\dinema\santon
WriteConsole: -L English_us
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: c:\dinema\santon
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: c:\dinema\santon
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: c:\dinema\santon
WriteConsole: c:\dinema\santo
WriteConsole:
WriteConsole: The system canno
C:\Users\Mflnmjiq\AppData\Local\Temp\A68B.tmp c:\users\user\DOWNLO~1
open tmpfile0.bat
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: del
WriteConsole: "C:\Users\Mflnm
WriteConsole:
WriteConsole:
WriteConsole: c:\users\user\DO
WriteConsole: del
WriteConsole: "tmpfile0.bat"
WriteConsole:
WriteConsole: The batch file c

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