Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    19-06-2024 12:10

General

  • Target

    BID DOCUMENTS.exe

  • Size

    3.1MB

  • MD5

    27b4e1027f528cd02d8126d8d19372f5

  • SHA1

    bec8b318bce37e293d5356ba56b382346470a236

  • SHA256

    92db2a8c9016383ace39beace9156fc9aea2c95313ad91a3eed5bf96329f8ba1

  • SHA512

    9972cbd9a2d4e8a141839c75df1d1b5afccb98ce207e1fe7fe6969e4d211111364475215d2bf7f7329f57c0045085582951642e9e486caabf015cf4711b2280e

  • SSDEEP

    12288:+V+aq6L4afWowT8m+D8x3/BT6DCXsyFk/VbvcEiGEXEw/LMQ5VCy2+:KxfwTuDS/V6W96tbvyUoL35VCy2+

Malware Config

Extracted

Family

agenttesla

Credentials

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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BID DOCUMENTS.exe
    "C:\Users\Admin\AppData\Local\Temp\BID DOCUMENTS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
      2⤵
        PID:2632
      • 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:2944
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2332 -s 640
        2⤵
          PID:2760

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2332-0-0x000007FEF5843000-0x000007FEF5844000-memory.dmp

        Filesize

        4KB

      • memory/2332-1-0x0000000000CF0000-0x0000000000CFA000-memory.dmp

        Filesize

        40KB

      • memory/2332-2-0x0000000002100000-0x0000000002194000-memory.dmp

        Filesize

        592KB

      • memory/2332-3-0x000007FEF5840000-0x000007FEF622C000-memory.dmp

        Filesize

        9.9MB

      • memory/2332-17-0x000007FEF5840000-0x000007FEF622C000-memory.dmp

        Filesize

        9.9MB

      • memory/2332-16-0x000007FEF5843000-0x000007FEF5844000-memory.dmp

        Filesize

        4KB

      • memory/2944-8-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2944-11-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2944-13-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2944-9-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2944-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2944-15-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2944-6-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/2944-4-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB