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Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2024, 07:58

General

  • Target

    PO_42347623792.exe

  • Size

    872KB

  • MD5

    1323078d9d22251cf2f9ad3365f7e178

  • SHA1

    5e3e2b3d6ddd72973000c301b1da950cf6ac07f1

  • SHA256

    fca946883c7ceba6682729c17bc5c9e67c7312b2066be69d0d03814392c449e2

  • SHA512

    927218eefe8ad1d889dfbc5c6d1a872373d99286bc3d4bb033bfc7886cb2308ab02328f9ab33b78749e6a2b6c8abb4c24322359f39312dc82d1d27082ab490fe

  • SSDEEP

    6144:MHJ84VJk6ZoNsCl4VWqxyvGoQjkXa5Z97Wj43dUVVTtcypaMlRae8KgqmYjS:MLVGFqsRaOSY

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6852245174:AAHgk_9s-tH6YNacTaCnQz56uJMggI0fZDw/

Signatures

  • AgentTesla

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

  • Agenttesla family
  • 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 3 TTPs

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

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO_42347623792.exe
    "C:\Users\Admin\AppData\Local\Temp\PO_42347623792.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2500
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2468-10-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2468-6-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2468-5-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2468-7-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2468-4-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2468-14-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2468-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2468-12-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2500-3-0x0000000000200000-0x0000000000206000-memory.dmp

    Filesize

    24KB

  • memory/2500-15-0x0000000074810000-0x0000000074EFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2500-0-0x000000007481E000-0x000000007481F000-memory.dmp

    Filesize

    4KB

  • memory/2500-2-0x00000000001A0000-0x00000000001B4000-memory.dmp

    Filesize

    80KB

  • memory/2500-1-0x00000000008A0000-0x0000000000980000-memory.dmp

    Filesize

    896KB