Analysis

  • max time kernel
    54s
  • max time network
    53s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 01:51

General

  • Target

    PO ELR-HOI-2024-05570.exe

  • Size

    1.0MB

  • MD5

    551b32ab011bbc51c79342794c4e7ed9

  • SHA1

    78aaf1a95847c2fdd7b78ca0fc21f92ac3f9673b

  • SHA256

    0ed75cc87008a5c3fc4b70fccabd2856cc16d062d9103ad5f587bec92c58cea0

  • SHA512

    2eae567cae356836ded6554571e34839e57c87dbd06da66b92bff5387688c7056a5d15a82ef0b2f102fd6c9a2ba333bcc9d351476a8e0af9847f9b8f3944696f

  • SSDEEP

    24576:ug61jjk0LAta9AskDIf+xYa4bVTHoR7qiYHQGPdnlEeZ6ZDwx2a:RHxYfp+KzPdn+KDka

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7274505044:AAHb_DyajG8TPY5j1pzNE8xKK33E90Tdt4o/

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.

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO ELR-HOI-2024-05570.exe
    "C:\Users\Admin\AppData\Local\Temp\PO ELR-HOI-2024-05570.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:348
    • C:\Users\Admin\AppData\Local\Temp\PO ELR-HOI-2024-05570.exe
      "C:\Users\Admin\AppData\Local\Temp\PO ELR-HOI-2024-05570.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO ELR-HOI-2024-05570.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/348-8-0x0000000008200000-0x0000000008282000-memory.dmp

    Filesize

    520KB

  • memory/348-3-0x0000000005460000-0x00000000054F2000-memory.dmp

    Filesize

    584KB

  • memory/348-9-0x000000000A980000-0x000000000AA1C000-memory.dmp

    Filesize

    624KB

  • memory/348-1-0x0000000000AF0000-0x0000000000BFA000-memory.dmp

    Filesize

    1.0MB

  • memory/348-5-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/348-6-0x0000000006730000-0x000000000674A000-memory.dmp

    Filesize

    104KB

  • memory/348-7-0x0000000006700000-0x0000000006710000-memory.dmp

    Filesize

    64KB

  • memory/348-0-0x000000007530E000-0x000000007530F000-memory.dmp

    Filesize

    4KB

  • memory/348-14-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/348-2-0x0000000005910000-0x0000000005EB4000-memory.dmp

    Filesize

    5.6MB

  • memory/348-4-0x0000000005610000-0x000000000561A000-memory.dmp

    Filesize

    40KB

  • memory/4332-13-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4332-19-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4332-15-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4332-16-0x00000000052C0000-0x0000000005326000-memory.dmp

    Filesize

    408KB

  • memory/4332-17-0x00000000068A0000-0x00000000068F0000-memory.dmp

    Filesize

    320KB

  • memory/4332-18-0x0000000075300000-0x0000000075AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4332-10-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB