Analysis

  • max time kernel
    90s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/10/2022, 13:00

General

  • Target
    31a16177fbec66cf886429ad2eeaa4c7.exe
  • Size 847KB
  • Sample221019-p8nb5agfh2
  • SHA256 875ec0c37d9c973142c00da42bb1b6b6e58115cf85ba0e4e231d7bed7df3b21e
  • MD5 SHA1 SHA512 SSDEEP

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\31a16177fbec66cf886429ad2eeaa4c7.exe
    "C:\Users\Admin\AppData\Local\Temp\31a16177fbec66cf886429ad2eeaa4c7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Users\Admin\AppData\Local\Temp\31a16177fbec66cf886429ad2eeaa4c7.exe
      "C:\Users\Admin\AppData\Local\Temp\31a16177fbec66cf886429ad2eeaa4c7.exe"
      2⤵
        PID:2764
      • C:\Users\Admin\AppData\Local\Temp\31a16177fbec66cf886429ad2eeaa4c7.exe
        "C:\Users\Admin\AppData\Local\Temp\31a16177fbec66cf886429ad2eeaa4c7.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1436

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          31a16177fbec66cf886429ad2eeaa4c7.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\31a16177fbec66cf886429ad2eeaa4c7.exe.log
          • Size 1KB
          • SHA256 8f35361fbf24bc7b50288c6e1ea35c78b1aea6c0445528e1dc23044d7a76f540
          • MD5 SHA1 SHA512

          memory/1436-141-0x0000000000400000-0x0000000000426000-memory.dmp

          memory/1436-143-0x0000000006990000-0x0000000006B52000-memory.dmp

          memory/4684-132-0x00000000002F0000-0x00000000003CA000-memory.dmp

          memory/4684-133-0x0000000007820000-0x0000000007E38000-memory.dmp

          memory/4684-134-0x0000000007E40000-0x00000000083E4000-memory.dmp

          memory/4684-135-0x00000000072B0000-0x0000000007342000-memory.dmp

          memory/4684-136-0x00000000072A0000-0x00000000072AA000-memory.dmp

          memory/4684-137-0x0000000005230000-0x00000000052CC000-memory.dmp

          memory/4684-138-0x0000000005340000-0x00000000053A6000-memory.dmp