Analysis

  • max time kernel
    118s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 02:03

General

  • Target

    43481bb11e0fcc3654b07c425b6a881a7e45e8ef9d22f322285804019efa8035.exe

  • Size

    137KB

  • MD5

    cbe9dd74657f661b730ea05553730eba

  • SHA1

    30881f4542f05cfd08ce28c554d4938515831291

  • SHA256

    43481bb11e0fcc3654b07c425b6a881a7e45e8ef9d22f322285804019efa8035

  • SHA512

    d9e30dbbfda0b192ef6c52c6f2d7f12a00a0fb4696106a8918acd98cbcd68ac1c923e7af1f4c37e2db581ee90dab4000718a93ef02a7c798942b8c50a61e11f3

  • SSDEEP

    3072:TC5MyNQN3ZYkGlIk5m/r9w6Mffc38ncLQK6dJJ:+G5ZKGky9wbffHnaQKe

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7134623757:AAG14l2IijdHtUMTQB8PlsH-2xdwM6WlmzQ/

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.

  • 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43481bb11e0fcc3654b07c425b6a881a7e45e8ef9d22f322285804019efa8035.exe
    "C:\Users\Admin\AppData\Local\Temp\43481bb11e0fcc3654b07c425b6a881a7e45e8ef9d22f322285804019efa8035.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:2628
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2400

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1464-0-0x000007FEF5373000-0x000007FEF5374000-memory.dmp
      Filesize

      4KB

    • memory/1464-1-0x0000000000250000-0x0000000000278000-memory.dmp
      Filesize

      160KB

    • memory/1464-2-0x000007FEF5370000-0x000007FEF5D5C000-memory.dmp
      Filesize

      9.9MB

    • memory/1464-3-0x0000000000460000-0x000000000046A000-memory.dmp
      Filesize

      40KB

    • memory/1464-16-0x000007FEF5370000-0x000007FEF5D5C000-memory.dmp
      Filesize

      9.9MB

    • memory/2400-15-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2400-4-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2400-13-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2400-11-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2400-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2400-8-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2400-7-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2400-6-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB