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Report - Semt.exe

GhostRAT NSIS Malicious Library PE File PE32 OS Processor Check
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  2. Detailed report
ScreenShot
Created 2021.09.07 08:37 Machine s1_win7_x6401
Filename Semt.exe
Type PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
AI Score
5
 Behavior Score
9.8
ZERO API file : malware
VT API (file) 53 detected (luIV, malicious, high confidence, MemScan, GenericKDZ, Zegost, Unsafe, Save, Dorv, confidence, 100%, Dialer, MYEI, multiple detections, Farfli, Scar, bcbyug, Lebag, CLASSIC, kymU42TVl6k57ri73oekkQ, PDSB@4q3i1w, SpyBot, AGEN, ASBOL, KVM003, kcloud, score, Artemis, ai score=84, Egyg, GenAsa, pd90PKR7MRk, Static AI, Suspicious PE)
md5 fbce6a70198854557fbeca0f09587758
sha256 a9005337ee42d933713cdb8fe8a777d36403b37649676ceb2d2c2417a8e91a04
ssdeep 6144:cQqek/BOtrgHyI/cXqUul/R0dPE1Nxw6sLcWaWPve1BQ4rO4Xc6dzO3cAO/mQ:8Vy5hWRecPxw6icWaWPvenAqD7
imphash 7fa974366048f9c551ef45714595665e
impfuzzy 48:6pBuU2cYZJaOkSv5L8r+tAlt8tz4eObGLlla0Q7XEFpV74dT+/1xyACnBoKQ504h:gBj2cYZJa2J21kpZSV0
  Network IP location

Signature (19cnts)

Level Description
danger File has been identified by 53 AntiVirus engines on VirusTotal as malicious
danger Connects to an IP address that is no longer responding to requests (legitimate services will remain up-and-running usually)
warning Generates some ICMP traffic
watch Communicates with host for which no DNS query was performed
watch Creates known Nitol/ServStart files
watch Creates known Zegost files
watch Detects VMWare through the in instruction feature
watch Installs itself for autorun at Windows startup
notice A process attempted to delay the analysis task.
notice Allocates read-write-execute memory (usually to unpack itself)
notice Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time)
notice Creates executable files on the filesystem
notice Drops a binary and executes it
notice Expresses interest in specific running processes
notice Repeatedly searches for a not-found process
notice Searches running processes potentially to identify processes for sandbox evasion
info Checks amount of memory in system
info One or more processes crashed
info The executable contains unknown PE section names indicative of a packer (could be a false positive)

Rules (9cnts)

Level Name Description Collection
danger Win_Backdoor_GhostRAT_Zero Win Backdoor GhostRAT binaries (download)
warning NSIS_Installer Null Soft Installer binaries (upload)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Malicious_Library_Zero Malicious_Library binaries (upload)
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (download)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)

Network (6cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://154.38.97.86:868/TXGJ.exe
whois
US COGENT-174 154.38.97.86 malware
103.119.1.139
whois
CN Cloudie Limited 103.119.1.139 clean
34.97.69.225
whois
US GOOGLE 34.97.69.225 mailcious
154.38.97.90
whois
US COGENT-174 154.38.97.90 clean
154.38.97.86
whois
US COGENT-174 154.38.97.86 malware
139.155.178.173
whois
CN Shenzhen Tencent Computer Systems Company Limited 139.155.178.173 malware

Suricata ids

ET INFO Executable Download from dotted-quad Host
ET MALWARE Gh0st Remote Access Trojan Encrypted Session To CnC Server
ET MALWARE Backdoor family PCRat/Gh0st CnC traffic
ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 102
ET MALWARE Likely Evil EXE download from dotted Quad by MSXMLHTTP M1
ET POLICY PE EXE or DLL Windows file download HTTP
ET EXPLOIT_KIT DRIVEBY Likely Evil EXE with no referer from HFS webserver (used by Unknown EK)
ET MALWARE Likely Evil EXE download from dotted Quad by MSXMLHTTP M2
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
ET INFO EXE - Served Attached HTTP

PE API

IAT(Import Address Table) Library

KERNEL32.dll
 0x407060 CompareFileTime
 0x407064 SearchPathA
 0x407068 GetShortPathNameA
 0x40706c GetFullPathNameA
 0x407070 MoveFileA
 0x407074 SetCurrentDirectoryA
 0x407078 GetFileAttributesA
 0x40707c GetLastError
 0x407080 CreateDirectoryA
 0x407084 SetFileAttributesA
 0x407088 Sleep
 0x40708c GetTickCount
 0x407090 GetFileSize
 0x407094 GetModuleFileNameA
 0x407098 GetCurrentProcess
 0x40709c CopyFileA
 0x4070a0 ExitProcess
 0x4070a4 GetWindowsDirectoryA
 0x4070a8 SetFileTime
 0x4070ac GetCommandLineA
 0x4070b0 SetErrorMode
 0x4070b4 LoadLibraryA
 0x4070b8 lstrcpynA
 0x4070bc GetDiskFreeSpaceA
 0x4070c0 GlobalUnlock
 0x4070c4 GlobalLock
 0x4070c8 CreateThread
 0x4070cc CreateProcessA
 0x4070d0 RemoveDirectoryA
 0x4070d4 CreateFileA
 0x4070d8 GetTempFileNameA
 0x4070dc lstrlenA
 0x4070e0 lstrcatA
 0x4070e4 GetSystemDirectoryA
 0x4070e8 GetVersion
 0x4070ec CloseHandle
 0x4070f0 lstrcmpiA
 0x4070f4 lstrcmpA
 0x4070f8 ExpandEnvironmentStringsA
 0x4070fc GlobalFree
 0x407100 GlobalAlloc
 0x407104 WaitForSingleObject
 0x407108 GetExitCodeProcess
 0x40710c GetModuleHandleA
 0x407110 LoadLibraryExA
 0x407114 GetProcAddress
 0x407118 FreeLibrary
 0x40711c MultiByteToWideChar
 0x407120 WritePrivateProfileStringA
 0x407124 GetPrivateProfileStringA
 0x407128 WriteFile
 0x40712c ReadFile
 0x407130 MulDiv
 0x407134 SetFilePointer
 0x407138 FindClose
 0x40713c FindNextFileA
 0x407140 FindFirstFileA
 0x407144 DeleteFileA
 0x407148 GetTempPathA
USER32.dll
 0x40716c EndDialog
 0x407170 ScreenToClient
 0x407174 GetWindowRect
 0x407178 EnableMenuItem
 0x40717c GetSystemMenu
 0x407180 SetClassLongA
 0x407184 IsWindowEnabled
 0x407188 SetWindowPos
 0x40718c GetSysColor
 0x407190 GetWindowLongA
 0x407194 SetCursor
 0x407198 LoadCursorA
 0x40719c CheckDlgButton
 0x4071a0 GetMessagePos
 0x4071a4 LoadBitmapA
 0x4071a8 CallWindowProcA
 0x4071ac IsWindowVisible
 0x4071b0 CloseClipboard
 0x4071b4 SetClipboardData
 0x4071b8 EmptyClipboard
 0x4071bc RegisterClassA
 0x4071c0 TrackPopupMenu
 0x4071c4 AppendMenuA
 0x4071c8 CreatePopupMenu
 0x4071cc GetSystemMetrics
 0x4071d0 SetDlgItemTextA
 0x4071d4 GetDlgItemTextA
 0x4071d8 MessageBoxIndirectA
 0x4071dc CharPrevA
 0x4071e0 DispatchMessageA
 0x4071e4 PeekMessageA
 0x4071e8 DestroyWindow
 0x4071ec CreateDialogParamA
 0x4071f0 SetTimer
 0x4071f4 SetWindowTextA
 0x4071f8 PostQuitMessage
 0x4071fc SetForegroundWindow
 0x407200 wsprintfA
 0x407204 SendMessageTimeoutA
 0x407208 FindWindowExA
 0x40720c SystemParametersInfoA
 0x407210 CreateWindowExA
 0x407214 GetClassInfoA
 0x407218 DialogBoxParamA
 0x40721c CharNextA
 0x407220 OpenClipboard
 0x407224 ExitWindowsEx
 0x407228 IsWindow
 0x40722c GetDlgItem
 0x407230 SetWindowLongA
 0x407234 LoadImageA
 0x407238 GetDC
 0x40723c EnableWindow
 0x407240 InvalidateRect
 0x407244 SendMessageA
 0x407248 DefWindowProcA
 0x40724c BeginPaint
 0x407250 GetClientRect
 0x407254 FillRect
 0x407258 DrawTextA
 0x40725c EndPaint
 0x407260 ShowWindow
GDI32.dll
 0x40703c SetBkColor
 0x407040 GetDeviceCaps
 0x407044 DeleteObject
 0x407048 CreateBrushIndirect
 0x40704c CreateFontIndirectA
 0x407050 SetBkMode
 0x407054 SetTextColor
 0x407058 SelectObject
SHELL32.dll
 0x407150 SHGetPathFromIDListA
 0x407154 SHBrowseForFolderA
 0x407158 SHGetFileInfoA
 0x40715c ShellExecuteA
 0x407160 SHFileOperationA
 0x407164 SHGetSpecialFolderLocation
ADVAPI32.dll
 0x407000 RegQueryValueExA
 0x407004 RegSetValueExA
 0x407008 RegEnumKeyA
 0x40700c RegEnumValueA
 0x407010 RegOpenKeyExA
 0x407014 RegDeleteKeyA
 0x407018 RegDeleteValueA
 0x40701c RegCloseKey
 0x407020 RegCreateKeyExA
COMCTL32.dll
 0x407028 ImageList_AddMasked
 0x40702c ImageList_Destroy
 0x407030 None
 0x407034 ImageList_Create
ole32.dll
 0x407278 CoTaskMemFree
 0x40727c OleInitialize
 0x407280 OleUninitialize
 0x407284 CoCreateInstance
VERSION.dll
 0x407268 GetFileVersionInfoSizeA
 0x40726c GetFileVersionInfoA
 0x407270 VerQueryValueA

EAT(Export Address Table) is none


Similarity measure (PE file only) - Checking for service failure