Analysis

  • max time kernel
    59s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/01/2024, 08:31

General

  • Target

    81f70b54b7d3636313ab065145c42e5a.exe

  • Size

    569KB

  • MD5

    81f70b54b7d3636313ab065145c42e5a

  • SHA1

    95e92f8dd3f90fdbd2f9b39ff5467cf108721b96

  • SHA256

    d5b2a38229346acf8eea0d20c4687f9f59627dcbf09c12d8ea5eb77e604653b6

  • SHA512

    924be32d261587bed59b2e85380688e9f0ab70161b407dc32f1e406e2108654fd393fff877fdc09abaf9eed3493926354516d2a506048f48a94d152fc87e2fdd

  • SSDEEP

    6144:JvLv+4SxVYycTWfDL6hBmgpq2aCnwnhNXu8doLp9be6tS7imKXIlWBS38KNrG0l1:pSPTKhgg9UNXuuoLLbe6g3lDfA0l

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81f70b54b7d3636313ab065145c42e5a.exe
    "C:\Users\Admin\AppData\Local\Temp\81f70b54b7d3636313ab065145c42e5a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4000
    • C:\Users\Admin\AppData\Local\Temp\81f70b54b7d3636313ab065145c42e5a.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1448
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1448 -s 1784
        3⤵
        • Program crash
        PID:2792
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1448 -ip 1448
    1⤵
      PID:2840

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\81f70b54b7d3636313ab065145c42e5a.exe.log

            Filesize

            1KB

            MD5

            8ec831f3e3a3f77e4a7b9cd32b48384c

            SHA1

            d83f09fd87c5bd86e045873c231c14836e76a05c

            SHA256

            7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

            SHA512

            26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

          • memory/1448-16-0x0000000074940000-0x00000000750F0000-memory.dmp

            Filesize

            7.7MB

          • memory/1448-18-0x0000000074940000-0x00000000750F0000-memory.dmp

            Filesize

            7.7MB

          • memory/1448-12-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/1448-17-0x0000000005260000-0x0000000005270000-memory.dmp

            Filesize

            64KB

          • memory/4000-4-0x0000000004D30000-0x0000000004D40000-memory.dmp

            Filesize

            64KB

          • memory/4000-6-0x00000000050F0000-0x00000000050F8000-memory.dmp

            Filesize

            32KB

          • memory/4000-7-0x00000000060F0000-0x000000000618C000-memory.dmp

            Filesize

            624KB

          • memory/4000-8-0x0000000074940000-0x00000000750F0000-memory.dmp

            Filesize

            7.7MB

          • memory/4000-9-0x0000000004D30000-0x0000000004D40000-memory.dmp

            Filesize

            64KB

          • memory/4000-10-0x00000000078D0000-0x000000000794C000-memory.dmp

            Filesize

            496KB

          • memory/4000-11-0x00000000077B0000-0x00000000077E4000-memory.dmp

            Filesize

            208KB

          • memory/4000-5-0x0000000004D80000-0x0000000004D8A000-memory.dmp

            Filesize

            40KB

          • memory/4000-1-0x0000000074940000-0x00000000750F0000-memory.dmp

            Filesize

            7.7MB

          • memory/4000-15-0x0000000074940000-0x00000000750F0000-memory.dmp

            Filesize

            7.7MB

          • memory/4000-3-0x0000000004DB0000-0x0000000004E42000-memory.dmp

            Filesize

            584KB

          • memory/4000-2-0x00000000052C0000-0x0000000005864000-memory.dmp

            Filesize

            5.6MB

          • memory/4000-0-0x0000000000420000-0x00000000004B4000-memory.dmp

            Filesize

            592KB