Analysis

  • max time kernel
    103s
  • max time network
    87s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    22/09/2021, 14:09

General

  • Target
    PO No. SMC -458964-005.exe
  • Size 669KB
  • Sample210922-rf5rtafear
  • SHA256 a9c0a0e296cab2dd6ee4d165e9992cf27b2919caef0fd4f0f04bf9df084f2048
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • snakekeylogger

Credentials
  • Protocol

    smtp

  • Host

    mail.sacauto.co.za

  • Port

    587

  • Password

    #R0797967613

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Looks up external IP address via web service 2 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.

  • Program crash 1 IoCs
  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO No. SMC -458964-005.exe
    "C:\Users\Admin\AppData\Local\Temp\PO No. SMC -458964-005.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:612
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zkEUXeqhuuaI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6FC2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1040
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1776
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:860
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1048
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1048 -s 1124
            3⤵
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1972

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            memory/612-54-0x00000000002E0000-0x00000000002E1000-memory.dmp

            memory/612-56-0x0000000004E70000-0x0000000004E71000-memory.dmp

            memory/612-57-0x0000000000540000-0x000000000055D000-memory.dmp

            memory/612-58-0x0000000005560000-0x00000000055BA000-memory.dmp

            memory/612-59-0x0000000001E40000-0x0000000001E71000-memory.dmp

            memory/1048-61-0x0000000000400000-0x0000000000426000-memory.dmp

            memory/1048-63-0x0000000000400000-0x0000000000426000-memory.dmp

            memory/1048-65-0x0000000000620000-0x0000000000621000-memory.dmp

            memory/1972-67-0x00000000003C0000-0x0000000000420000-memory.dmp