Analysis

  • max time kernel
    152s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 16:33

General

  • Target

    file.exe

  • Size

    652KB

  • MD5

    2d7b3078116d6fb3da2f1ab51c8cf0e2

  • SHA1

    8a6a461b4f37a9b2d32b1cbdbecd3579619bbba1

  • SHA256

    8161e804d97adf2fbf82fffb3118ddeddb6e747eaa8322855cd461aaa3d5b0c1

  • SHA512

    3e2683930d8220696350792d35002b9dc1e3dff1c7b92a527bc7eb1dd6cc2e59e14e20848a0eb6db4e86b22db046ff69a830085d89ae7e159470d9ed7b04ab68

  • SSDEEP

    12288:bdgh/PsZ1DX/VDJ8eRlpr5VxA+nsWbaAQXwILHpCsK6bu:bdgh/PjspVVxpsWmXwiPC

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • 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 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2200
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
        PID:2528
      • C:\Users\Admin\AppData\Local\Temp\file.exe
        "C:\Users\Admin\AppData\Local\Temp\file.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3804

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/2200-132-0x0000000000460000-0x000000000050A000-memory.dmp

      Filesize

      680KB

    • memory/2200-133-0x00000000054C0000-0x0000000005A64000-memory.dmp

      Filesize

      5.6MB

    • memory/2200-134-0x0000000004F10000-0x0000000004FA2000-memory.dmp

      Filesize

      584KB

    • memory/2200-135-0x0000000004EB0000-0x0000000004EBA000-memory.dmp

      Filesize

      40KB

    • memory/2200-136-0x0000000000DF0000-0x0000000000E8C000-memory.dmp

      Filesize

      624KB

    • memory/2528-137-0x0000000000000000-mapping.dmp

    • memory/3804-139-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3804-138-0x0000000000000000-mapping.dmp

    • memory/3804-141-0x0000000006210000-0x00000000063D2000-memory.dmp

      Filesize

      1.8MB