Threat Database Trojans Trojan.ServStart.GF

Trojan.ServStart.GF

By CagedTech in Trojans

Analysis Report

General information

Family Name: Trojan.ServStart.GF
Signature status: No Signature

Known Samples

MD5: 849af84f2825c21bb1a68894c0634a4e
SHA1: ffd1ad7537570bcf4bf88868c0b51f571ee26066
SHA256: FA1A0341DFC19859C3C0910D2E58BC9C24379B50C63F6E5633E1D05312F78F22
File Size: 98.30 KB, 98304 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have security information
  • File has exports table
  • 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)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
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  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • dll
  • x86

Block Information

Total Blocks: 42
Potentially Malicious Blocks: 32
Whitelisted Blocks: 10
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MicroFake.A
  • ServStart.GA

Files Modified

File Attributes
\device\namedpipe\gmdasllogger Generic Write,Read Attributes
c:\users\user\appdata\local\temp\hrla7d3.tmp Generic Write,Read Attributes

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtQueryAttributesFile
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  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWriteFile
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
Other Suspicious
  • SetWindowsHookEx
User Data Access
  • GetUserObjectInformation

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\ffd1ad7537570bcf4bf88868c0b51f571ee26066_0000098304.,LiQMAxHB

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