Analysis

  • max time kernel
    82s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/02/2023, 12:55

General

  • Target
    cfb62591da20892aa755ee932666054f.exe
  • Size 802KB
  • Sample230224-p5wt4abc58
  • SHA256 a1f20e7eb5cf78dfec6c0a2103ebff1e9809f2205f5f2098acb1cabed20960bd
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfb62591da20892aa755ee932666054f.exe
    "C:\Users\Admin\AppData\Local\Temp\cfb62591da20892aa755ee932666054f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Local\Temp\cfb62591da20892aa755ee932666054f.exe
      "C:\Users\Admin\AppData\Local\Temp\cfb62591da20892aa755ee932666054f.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:388

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        cfb62591da20892aa755ee932666054f.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\cfb62591da20892aa755ee932666054f.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/388-140-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/388-143-0x0000000005AA0000-0x0000000005AB0000-memory.dmp

        memory/388-144-0x0000000006D20000-0x0000000006EE2000-memory.dmp

        memory/388-145-0x0000000005AA0000-0x0000000005AB0000-memory.dmp

        memory/1732-133-0x0000000000F50000-0x000000000101E000-memory.dmp

        memory/1732-134-0x0000000005E70000-0x0000000006414000-memory.dmp

        memory/1732-135-0x00000000058C0000-0x0000000005952000-memory.dmp

        memory/1732-136-0x0000000005890000-0x000000000589A000-memory.dmp

        memory/1732-137-0x0000000005B00000-0x0000000005B9C000-memory.dmp

        memory/1732-138-0x0000000005A50000-0x0000000005A60000-memory.dmp

        memory/1732-139-0x0000000005A50000-0x0000000005A60000-memory.dmp