Analysis

  • max time kernel
    79s
  • max time network
    133s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    24/08/2021, 07:10

General

  • Target
    2UZ8zLT94pJEufW.exe
  • Size 868KB
  • Sample210824-jtxmxgrx9x
  • SHA256 bf72fb3cccef8f9988501591ae9d15e547ef80191c3e5b8043ca223268b32502
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.yenihuzurtipmerkezi.com

  • Port

    587

  • Password

    bayram142536

Extracted

Family
  • snakekeylogger

Credentials
  • Protocol

    smtp

  • Host

    mail.yenihuzurtipmerkezi.com

  • Port

    587

  • Password

    bayram142536

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • 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.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2UZ8zLT94pJEufW.exe
    "C:\Users\Admin\AppData\Local\Temp\2UZ8zLT94pJEufW.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:804
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AKLTlnPwsX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6765.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:940
    • C:\Users\Admin\AppData\Local\Temp\2UZ8zLT94pJEufW.exe
      "C:\Users\Admin\AppData\Local\Temp\2UZ8zLT94pJEufW.exe"
      2⤵
        PID:4044
      • C:\Users\Admin\AppData\Local\Temp\2UZ8zLT94pJEufW.exe
        "C:\Users\Admin\AppData\Local\Temp\2UZ8zLT94pJEufW.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3344

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/804-123-0x0000000009FE0000-0x000000000A072000-memory.dmp

          memory/804-124-0x00000000072D0000-0x00000000072FA000-memory.dmp

          memory/804-119-0x0000000005360000-0x0000000005361000-memory.dmp

          memory/804-120-0x0000000005660000-0x0000000005661000-memory.dmp

          memory/804-121-0x0000000005470000-0x000000000596E000-memory.dmp

          memory/804-122-0x0000000005600000-0x0000000005611000-memory.dmp

          memory/804-114-0x0000000000940000-0x0000000000941000-memory.dmp

          memory/804-118-0x0000000005470000-0x0000000005471000-memory.dmp

          memory/804-116-0x00000000053D0000-0x00000000053D1000-memory.dmp

          memory/804-117-0x0000000005970000-0x0000000005971000-memory.dmp

          memory/3344-127-0x0000000000400000-0x0000000000426000-memory.dmp

          memory/3344-134-0x00000000055A0000-0x0000000005A9E000-memory.dmp

          memory/3344-136-0x00000000069B0000-0x00000000069B1000-memory.dmp