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Analysis

  • max time kernel
    158s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2023, 13:08

General

  • Target

    a6ae06462afb523f0a2b1b6910afe6ee74360786ad682e69fe011876a141aad1.exe

  • Size

    945KB

  • MD5

    e5b1608b4f82a2fef709f53c435f894c

  • SHA1

    234670ffd06cc853a3fa88f4c9b100c895b969e1

  • SHA256

    a6ae06462afb523f0a2b1b6910afe6ee74360786ad682e69fe011876a141aad1

  • SHA512

    5fda6c6c61fbc10fb15717f4495e00a342ee12324506de70a9f3397ec00a2005d3bb662480d36fa3b815bd7ed758831063d15b32e8b6fd044d869b196995fda3

  • SSDEEP

    24576:WM24QHlWxMiQW/O4ue7rqGDsBTAXRUSXnqot5RhCjB:mhlYMiQWmS7wT2RXXnqot5Rh0B

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5480024987:AAEOw0FrXbZvPh7UKydmAyaZODSJd4PSlkU/

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
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6ae06462afb523f0a2b1b6910afe6ee74360786ad682e69fe011876a141aad1.exe
    "C:\Users\Admin\AppData\Local\Temp\a6ae06462afb523f0a2b1b6910afe6ee74360786ad682e69fe011876a141aad1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Users\Admin\AppData\Local\Temp\a6ae06462afb523f0a2b1b6910afe6ee74360786ad682e69fe011876a141aad1.exe
      "C:\Users\Admin\AppData\Local\Temp\a6ae06462afb523f0a2b1b6910afe6ee74360786ad682e69fe011876a141aad1.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3252

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a6ae06462afb523f0a2b1b6910afe6ee74360786ad682e69fe011876a141aad1.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/3252-140-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3252-147-0x00000000058F0000-0x0000000005900000-memory.dmp

    Filesize

    64KB

  • memory/3252-146-0x0000000007770000-0x0000000007932000-memory.dmp

    Filesize

    1.8MB

  • memory/3252-145-0x0000000007550000-0x00000000075A0000-memory.dmp

    Filesize

    320KB

  • memory/3252-144-0x00000000058F0000-0x0000000005900000-memory.dmp

    Filesize

    64KB

  • memory/3252-143-0x0000000005900000-0x0000000005966000-memory.dmp

    Filesize

    408KB

  • memory/3716-136-0x00000000052B0000-0x00000000052BA000-memory.dmp

    Filesize

    40KB

  • memory/3716-139-0x00000000082F0000-0x000000000838C000-memory.dmp

    Filesize

    624KB

  • memory/3716-138-0x00000000052A0000-0x00000000052B0000-memory.dmp

    Filesize

    64KB

  • memory/3716-137-0x00000000052A0000-0x00000000052B0000-memory.dmp

    Filesize

    64KB

  • memory/3716-133-0x00000000007F0000-0x00000000008E2000-memory.dmp

    Filesize

    968KB

  • memory/3716-135-0x00000000052E0000-0x0000000005372000-memory.dmp

    Filesize

    584KB

  • memory/3716-134-0x00000000057F0000-0x0000000005D94000-memory.dmp

    Filesize

    5.6MB