Analysis

  • max time kernel
    50s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24/01/2023, 16:47

General

  • Target
    c4b42227d195c3bc6a36bf0e2e1b76b6.exe
  • Size 662KB
  • Sample230124-vah8eaec6x
  • SHA256 5bbeb09102c0876fc3d18a31c5aefdfc6f42a4354422611bfefedba2d51da208
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 6 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 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c4b42227d195c3bc6a36bf0e2e1b76b6.exe
    "C:\Users\Admin\AppData\Local\Temp\c4b42227d195c3bc6a36bf0e2e1b76b6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\c4b42227d195c3bc6a36bf0e2e1b76b6.exe
      "C:\Users\Admin\AppData\Local\Temp\c4b42227d195c3bc6a36bf0e2e1b76b6.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:472

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/472-65-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/472-66-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/472-71-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/472-61-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/472-60-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/472-63-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/472-69-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/2028-55-0x0000000075A11000-0x0000000075A13000-memory.dmp

        memory/2028-54-0x0000000000230000-0x00000000002DC000-memory.dmp

        memory/2028-59-0x00000000004F0000-0x0000000000516000-memory.dmp

        memory/2028-58-0x0000000004430000-0x0000000004490000-memory.dmp

        memory/2028-57-0x00000000002F0000-0x00000000002FA000-memory.dmp

        memory/2028-56-0x0000000000210000-0x0000000000220000-memory.dmp