Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-04-2024 09:00

General

  • Target

    tmp83d43ask.exe

  • Size

    365KB

  • MD5

    f5c30a79af9acf6fc4065cad77aa0fd3

  • SHA1

    222030b3943e9ed72a9c0b1a4bd74293c15e2dbe

  • SHA256

    64c3a2f1f3d66c15c7a383c838347878c5925030bf93657807807d0e9e864846

  • SHA512

    093640c3a7dbcdd5d388cd29f434c4a0d7f2381f89325418ae0a9a4a03a4dae798cc7dbdcf88897b79f8327222de07414cf1f7742c2db3350c4556e50afd29f4

  • SSDEEP

    6144:7V13TaaCOyVm4adic91/pyru0AZ6Y4e5P1p1h2CVIzTARnDFkeePeov+:BVauyVRuBpyy1LP1rh2Cazteke

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7185592808:AAH40VecOIxIokAMjd2dL-3MoQxpbXJyxfE/

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp83d43ask.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp83d43ask.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\tmp83d43ask.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp83d43ask.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2200

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2200-16-0x0000000073350000-0x0000000073A3E000-memory.dmp
    Filesize

    6.9MB

  • memory/2200-5-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2200-21-0x0000000000660000-0x00000000006A0000-memory.dmp
    Filesize

    256KB

  • memory/2200-4-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2200-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2200-20-0x0000000073350000-0x0000000073A3E000-memory.dmp
    Filesize

    6.9MB

  • memory/2200-15-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2200-7-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2200-6-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2200-13-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2200-10-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2200-17-0x0000000000660000-0x00000000006A0000-memory.dmp
    Filesize

    256KB

  • memory/2208-2-0x00000000006E0000-0x0000000000720000-memory.dmp
    Filesize

    256KB

  • memory/2208-1-0x0000000074330000-0x0000000074A1E000-memory.dmp
    Filesize

    6.9MB

  • memory/2208-3-0x0000000000260000-0x0000000000261000-memory.dmp
    Filesize

    4KB

  • memory/2208-12-0x0000000074330000-0x0000000074A1E000-memory.dmp
    Filesize

    6.9MB

  • memory/2208-0-0x0000000000100000-0x0000000000162000-memory.dmp
    Filesize

    392KB