Analysis

  • max time kernel
    112s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-04-2023 07:30

General

  • Target

    DOOR-MET_23045112.exe

  • Size

    658KB

  • MD5

    f4a6d37fefe83f89c2f6b1f253bb9c2c

  • SHA1

    58ac04dfcc1f0bbf7c41181102f9371a67cda336

  • SHA256

    788e583861d0022304a8013dcf66be0e312402d6154f5a7788f1d67518583c7e

  • SHA512

    37f6a03d1356aa442ddc61c230549282fa5f5ce8d3aac4792e26cbbb51f75090b0ab8a0e9139304ee6b89530662cf2ee24033573b80f8b81a27fbcf6ee220e0f

  • SSDEEP

    12288:q6okzy/q4JM4Q2lQfzwcIDNEkxtdBo0hoay47DKWMH29yoNSDA:Sku/6gQMc6uqhrqW/N

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DOOR-MET_23045112.exe
    "C:\Users\Admin\AppData\Local\Temp\DOOR-MET_23045112.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:1896
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3416

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1700-133-0x0000000000EF0000-0x0000000000F9A000-memory.dmp
      Filesize

      680KB

    • memory/1700-134-0x0000000005F40000-0x00000000064E4000-memory.dmp
      Filesize

      5.6MB

    • memory/1700-135-0x0000000005990000-0x0000000005A22000-memory.dmp
      Filesize

      584KB

    • memory/1700-136-0x0000000005900000-0x000000000590A000-memory.dmp
      Filesize

      40KB

    • memory/1700-137-0x0000000005BF0000-0x0000000005C8C000-memory.dmp
      Filesize

      624KB

    • memory/1700-138-0x0000000005920000-0x0000000005930000-memory.dmp
      Filesize

      64KB

    • memory/1700-139-0x0000000005920000-0x0000000005930000-memory.dmp
      Filesize

      64KB

    • memory/1700-140-0x0000000005920000-0x0000000005930000-memory.dmp
      Filesize

      64KB

    • memory/1700-141-0x0000000005920000-0x0000000005930000-memory.dmp
      Filesize

      64KB

    • memory/1700-142-0x0000000005920000-0x0000000005930000-memory.dmp
      Filesize

      64KB

    • memory/1700-143-0x0000000005920000-0x0000000005930000-memory.dmp
      Filesize

      64KB

    • memory/1700-144-0x0000000005920000-0x0000000005930000-memory.dmp
      Filesize

      64KB

    • memory/1700-145-0x0000000005920000-0x0000000005930000-memory.dmp
      Filesize

      64KB

    • memory/3416-146-0x0000000000400000-0x0000000000430000-memory.dmp
      Filesize

      192KB

    • memory/3416-148-0x0000000005360000-0x00000000053C6000-memory.dmp
      Filesize

      408KB

    • memory/3416-149-0x0000000005600000-0x0000000005610000-memory.dmp
      Filesize

      64KB

    • memory/3416-150-0x0000000006760000-0x00000000067B0000-memory.dmp
      Filesize

      320KB

    • memory/3416-151-0x0000000006980000-0x0000000006B42000-memory.dmp
      Filesize

      1.8MB

    • memory/3416-152-0x0000000005600000-0x0000000005610000-memory.dmp
      Filesize

      64KB