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Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/04/2024, 08:04

General

  • Target

    f554eee597d0262cd192e15ecfb61c71746ca2c0bc9948dc7703440e797f802e_JaffaCakes118.exe

  • Size

    685KB

  • MD5

    9ff7e0f3a6ba748bc8549cb38ab93971

  • SHA1

    511020c3ff5b7a72c24dce960fb142899e0b65af

  • SHA256

    f554eee597d0262cd192e15ecfb61c71746ca2c0bc9948dc7703440e797f802e

  • SHA512

    2c3e0dc2fb7c2fc9854211036133fba84d9d78e07e693da7346cdbc3d29252f2e802673c099b8b9b540b7b05a8b3ff80fc6561d7d2c1c43cabb594be2073421b

  • SSDEEP

    12288:oeq+PtexJ5ZZcTlQnGODH+7YvNYbMp5KIh4G9SqkYYIJm7JbP:E+P65ZSTlmT4YvNYoWC4G8qLYqm7JbP

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6334555107:AAHjkXdGw4FaaaH1kHZyxe86XPdggmZYH1Y/

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\f554eee597d0262cd192e15ecfb61c71746ca2c0bc9948dc7703440e797f802e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f554eee597d0262cd192e15ecfb61c71746ca2c0bc9948dc7703440e797f802e_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Users\Admin\AppData\Local\Temp\f554eee597d0262cd192e15ecfb61c71746ca2c0bc9948dc7703440e797f802e_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\f554eee597d0262cd192e15ecfb61c71746ca2c0bc9948dc7703440e797f802e_JaffaCakes118.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3916

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f554eee597d0262cd192e15ecfb61c71746ca2c0bc9948dc7703440e797f802e_JaffaCakes118.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1464-8-0x00000000051F0000-0x00000000051FE000-memory.dmp

    Filesize

    56KB

  • memory/1464-1-0x0000000000300000-0x00000000003B2000-memory.dmp

    Filesize

    712KB

  • memory/1464-3-0x0000000004DA0000-0x0000000004E32000-memory.dmp

    Filesize

    584KB

  • memory/1464-4-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

    Filesize

    64KB

  • memory/1464-5-0x0000000004E50000-0x0000000004E5A000-memory.dmp

    Filesize

    40KB

  • memory/1464-6-0x0000000005090000-0x000000000512C000-memory.dmp

    Filesize

    624KB

  • memory/1464-7-0x00000000051C0000-0x00000000051D2000-memory.dmp

    Filesize

    72KB

  • memory/1464-0-0x0000000075340000-0x0000000075AF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1464-2-0x0000000005420000-0x00000000059C4000-memory.dmp

    Filesize

    5.6MB

  • memory/1464-9-0x0000000007AB0000-0x0000000007B2C000-memory.dmp

    Filesize

    496KB

  • memory/1464-13-0x0000000075340000-0x0000000075AF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3916-14-0x0000000075340000-0x0000000075AF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3916-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3916-15-0x00000000057C0000-0x00000000057D0000-memory.dmp

    Filesize

    64KB

  • memory/3916-16-0x00000000058D0000-0x0000000005936000-memory.dmp

    Filesize

    408KB

  • memory/3916-17-0x0000000007080000-0x00000000070D0000-memory.dmp

    Filesize

    320KB

  • memory/3916-18-0x0000000075340000-0x0000000075AF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3916-19-0x00000000057C0000-0x00000000057D0000-memory.dmp

    Filesize

    64KB