Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-12-2023 02:02

General

  • Target

    49ff5dbdea22cd2a12ab7b158e217719b01989042c824525175815f10df22d60.exe

  • Size

    165KB

  • MD5

    478a7584704a758ee301ede0d052f89d

  • SHA1

    cd7ddf88214290d758d6347232e4f7fdc0e8156f

  • SHA256

    49ff5dbdea22cd2a12ab7b158e217719b01989042c824525175815f10df22d60

  • SHA512

    fd327cab1d30c088987b8833e8e961ebef40856ba38b61c522954fa1e72edb503b5a7edc1caa958519f707609d69f232cd80654321663b08cd79a84546f65282

  • SSDEEP

    3072:xHQV8e98bPvlyVKl2BXIWnUbRS0V6UO6WTvUxQ+weX:xHQV8Y8rUVS2BUbRS0VLqAxQg

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6651388463:AAGPyX1jIOueSy44Eej5x_9iDGNGzA2dbog/

Signatures

  • AgentTesla

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

  • 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 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\49ff5dbdea22cd2a12ab7b158e217719b01989042c824525175815f10df22d60.exe
    "C:\Users\Admin\AppData\Local\Temp\49ff5dbdea22cd2a12ab7b158e217719b01989042c824525175815f10df22d60.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Users\Admin\AppData\Local\Temp\49ff5dbdea22cd2a12ab7b158e217719b01989042c824525175815f10df22d60.exe
      C:\Users\Admin\AppData\Local\Temp\49ff5dbdea22cd2a12ab7b158e217719b01989042c824525175815f10df22d60.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\49ff5dbdea22cd2a12ab7b158e217719b01989042c824525175815f10df22d60.exe.log

    Filesize

    1KB

    MD5

    8c2da65103d6b46d8cf610b118210cf0

    SHA1

    9db4638340bb74f2af3161cc2c9c0b8b32e6ab65

    SHA256

    0e48e2efd419951e0eb9a8d942493cfdf5540d1d19ff9dae6f145fb3ebcbeeac

    SHA512

    3cf5a125276e264cd8478f2b92d3848fb68b96d46eb4a39e650d09df02068c274881a1c314cdfbfdcb452672fb70dd8becf3ffe9562d39919d9c4d6b07fbb614

  • memory/548-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/548-20-0x00000000052D0000-0x00000000052E0000-memory.dmp

    Filesize

    64KB

  • memory/548-19-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/548-18-0x0000000006A10000-0x0000000006AAC000-memory.dmp

    Filesize

    624KB

  • memory/548-16-0x00000000052D0000-0x00000000052E0000-memory.dmp

    Filesize

    64KB

  • memory/548-17-0x0000000005450000-0x00000000054B6000-memory.dmp

    Filesize

    408KB

  • memory/548-15-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/3488-8-0x0000000006280000-0x00000000062C0000-memory.dmp

    Filesize

    256KB

  • memory/3488-9-0x00000000062C0000-0x000000000630C000-memory.dmp

    Filesize

    304KB

  • memory/3488-0-0x00000000001F0000-0x000000000021E000-memory.dmp

    Filesize

    184KB

  • memory/3488-7-0x0000000006240000-0x0000000006282000-memory.dmp

    Filesize

    264KB

  • memory/3488-14-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB

  • memory/3488-6-0x0000000006170000-0x00000000061CA000-memory.dmp

    Filesize

    360KB

  • memory/3488-5-0x0000000004C10000-0x0000000004C1A000-memory.dmp

    Filesize

    40KB

  • memory/3488-4-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

    Filesize

    64KB

  • memory/3488-3-0x0000000004C50000-0x0000000004CE2000-memory.dmp

    Filesize

    584KB

  • memory/3488-2-0x0000000005200000-0x00000000057A4000-memory.dmp

    Filesize

    5.6MB

  • memory/3488-1-0x0000000075330000-0x0000000075AE0000-memory.dmp

    Filesize

    7.7MB