Analysis

  • max time kernel
    135s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2023, 12:25

General

  • Target
    41jjKa3asuAaTmT.exe
  • Size 582KB
  • Sample230403-plm3vaef37
  • SHA256 991bbcfcdcf46e0e2180f8024b6ba4d87c72d36289bb49e023a9fb04c71ff191
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

C2
  • https://api.telegram.org/bot6277827765:AAGkON0bdCE8PCGABmKqbxxetYUGx4oIV1w/sendMessage?chat_id=6176924282

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 2 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\41jjKa3asuAaTmT.exe
    "C:\Users\Admin\AppData\Local\Temp\41jjKa3asuAaTmT.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2840
    • C:\Users\Admin\AppData\Local\Temp\41jjKa3asuAaTmT.exe
      "C:\Users\Admin\AppData\Local\Temp\41jjKa3asuAaTmT.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2688

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        41jjKa3asuAaTmT.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\41jjKa3asuAaTmT.exe.log
        • Size 1KB
        • SHA256 839fa1f9725719938ffa24533587b168bae2768f23ac09dccb3ad4ab8ae6abcd
        • MD5 SHA1 SHA512

        memory/2688-140-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/2688-146-0x0000000005C00000-0x0000000005C10000-memory.dmp

        memory/2688-145-0x0000000006C50000-0x0000000006C5A000-memory.dmp

        memory/2688-144-0x0000000006EF0000-0x00000000070B2000-memory.dmp

        memory/2688-143-0x0000000005C00000-0x0000000005C10000-memory.dmp

        memory/2840-136-0x0000000005530000-0x00000000055C2000-memory.dmp

        memory/2840-139-0x0000000005480000-0x0000000005490000-memory.dmp

        memory/2840-138-0x0000000006F80000-0x000000000701C000-memory.dmp

        memory/2840-137-0x0000000005480000-0x0000000005490000-memory.dmp

        memory/2840-133-0x00000000008A0000-0x0000000000936000-memory.dmp

        memory/2840-135-0x0000000005A40000-0x0000000005FE4000-memory.dmp

        memory/2840-134-0x0000000005480000-0x0000000005490000-memory.dmp