Analysis

  • max time kernel
    91s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/01/2023, 09:28

General

  • Target
    yJJsjDFtgxl42Kq.exe
  • Size 864KB
  • Sample230116-lfbwvagg6t
  • SHA256 d54bb4abf5b1d85b7c01eb5a5ca9bd61b2b6ff82acc7235a8b8b65cff3129782
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

C2
  • https://api.telegram.org/bot5818680343:AAGVJsfIHcopySiifMCdAaFCv-ICp2_Yo_M/sendMessage?chat_id=5765702254

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 4 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\yJJsjDFtgxl42Kq.exe
    "C:\Users\Admin\AppData\Local\Temp\yJJsjDFtgxl42Kq.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:976
    • C:\Users\Admin\AppData\Local\Temp\yJJsjDFtgxl42Kq.exe
      "C:\Users\Admin\AppData\Local\Temp\yJJsjDFtgxl42Kq.exe"
      2⤵
        PID:2116
      • C:\Users\Admin\AppData\Local\Temp\yJJsjDFtgxl42Kq.exe
        "C:\Users\Admin\AppData\Local\Temp\yJJsjDFtgxl42Kq.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2204

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          yJJsjDFtgxl42Kq.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\yJJsjDFtgxl42Kq.exe.log
          • Size 1KB
          • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
          • MD5 SHA1 SHA512

          memory/976-132-0x0000000000610000-0x00000000006EE000-memory.dmp

          memory/976-133-0x00000000056E0000-0x0000000005C84000-memory.dmp

          memory/976-134-0x0000000005130000-0x00000000051C2000-memory.dmp

          memory/976-135-0x0000000005080000-0x000000000508A000-memory.dmp

          memory/976-136-0x00000000053E0000-0x000000000547C000-memory.dmp

          memory/2204-139-0x0000000000400000-0x0000000000426000-memory.dmp

          memory/2204-141-0x0000000006920000-0x0000000006AE2000-memory.dmp