Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-12-2023 01:45

General

  • Target

    200-8888-000000-111111-99999-0909.exe

  • Size

    674KB

  • MD5

    28c00635cfc915ef65aa9ae781b3ba29

  • SHA1

    f7ca0c543bd26d970ad8d79b5d04260db00da862

  • SHA256

    dec9e3d82728245f93f270ca561bc1328e7fc64c2da9dc4d07033070262ce7c1

  • SHA512

    b492f4d738c3c70fbab11dfe546bada4ce80126893bf5987565fe78f2ef391a515102cca2939f17f67025fdcfea09fbe4cf0c387430ad1a688214ee57c578102

  • SSDEEP

    12288:8r6Gu+4WpAEFy7NyoZDUx8939KO7KYL4Ggwz4zX++lrmmLFx8XnYaeM1Zq9dg8+C:Y1pAEgZo+9tH7l4GZ8zXDvLb8XpV/+dU

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6951347694:AAFNQsyUSI3cANPz4_GPvhuwkgXsMAsB41o/

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\200-8888-000000-111111-99999-0909.exe
    "C:\Users\Admin\AppData\Local\Temp\200-8888-000000-111111-99999-0909.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Users\Admin\AppData\Local\Temp\200-8888-000000-111111-99999-0909.exe
      "C:\Users\Admin\AppData\Local\Temp\200-8888-000000-111111-99999-0909.exe"
      2⤵
        PID:5104
      • C:\Users\Admin\AppData\Local\Temp\200-8888-000000-111111-99999-0909.exe
        "C:\Users\Admin\AppData\Local\Temp\200-8888-000000-111111-99999-0909.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3152

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\200-8888-000000-111111-99999-0909.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/2228-10-0x0000000007CC0000-0x0000000007D5C000-memory.dmp

      Filesize

      624KB

    • memory/2228-17-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2228-3-0x00000000050E0000-0x0000000005172000-memory.dmp

      Filesize

      584KB

    • memory/2228-4-0x0000000002AD0000-0x0000000002AE0000-memory.dmp

      Filesize

      64KB

    • memory/2228-5-0x0000000005070000-0x000000000507A000-memory.dmp

      Filesize

      40KB

    • memory/2228-6-0x0000000005790000-0x00000000057A8000-memory.dmp

      Filesize

      96KB

    • memory/2228-7-0x00000000057D0000-0x00000000057D8000-memory.dmp

      Filesize

      32KB

    • memory/2228-9-0x0000000008F90000-0x000000000900E000-memory.dmp

      Filesize

      504KB

    • memory/2228-0-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2228-2-0x00000000057F0000-0x0000000005D94000-memory.dmp

      Filesize

      5.6MB

    • memory/2228-8-0x00000000057E0000-0x00000000057EA000-memory.dmp

      Filesize

      40KB

    • memory/2228-1-0x00000000005D0000-0x000000000067E000-memory.dmp

      Filesize

      696KB

    • memory/2228-14-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/3152-20-0x00000000070E0000-0x0000000007130000-memory.dmp

      Filesize

      320KB

    • memory/3152-16-0x0000000005820000-0x0000000005830000-memory.dmp

      Filesize

      64KB

    • memory/3152-15-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/3152-18-0x0000000005B30000-0x0000000005B96000-memory.dmp

      Filesize

      408KB

    • memory/3152-22-0x0000000005820000-0x0000000005830000-memory.dmp

      Filesize

      64KB

    • memory/3152-21-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/3152-11-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB