Analysis

  • max time kernel
    69s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/02/2023, 08:45

General

  • Target
    Proforma Bill of Lading for COSU6302595940.exe
  • Size 926KB
  • Sample230219-knq53aef5x
  • SHA256 c901b86e7d9f3cd9b9c50533d67b0e95ab1bb154aa7d817b40af99b528d3dc58
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

Credentials
C2
  • https://api.telegram.org/bot6166695280:AAFYAmHtNxka4VVDE564YnB1MkmT68AnzXY/sendMessage?chat_id=5981442240

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\Proforma Bill of Lading for COSU6302595940.exe
    "C:\Users\Admin\AppData\Local\Temp\Proforma Bill of Lading for COSU6302595940.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4776
    • C:\Users\Admin\AppData\Local\Temp\Proforma Bill of Lading for COSU6302595940.exe
      "C:\Users\Admin\AppData\Local\Temp\Proforma Bill of Lading for COSU6302595940.exe"
      2⤵
        PID:3388
      • C:\Users\Admin\AppData\Local\Temp\Proforma Bill of Lading for COSU6302595940.exe
        "C:\Users\Admin\AppData\Local\Temp\Proforma Bill of Lading for COSU6302595940.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3284

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/3284-139-0x0000000000400000-0x0000000000426000-memory.dmp

          memory/3284-140-0x0000000006360000-0x0000000006522000-memory.dmp

          memory/4776-132-0x00000000004C0000-0x00000000005AE000-memory.dmp

          memory/4776-133-0x00000000054E0000-0x0000000005A84000-memory.dmp

          memory/4776-134-0x0000000004FD0000-0x0000000005062000-memory.dmp

          memory/4776-135-0x0000000004F60000-0x0000000004F6A000-memory.dmp

          memory/4776-136-0x0000000008DC0000-0x0000000008E5C000-memory.dmp