Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03-07-2022 05:23

General

  • Target

    cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe

  • Size

    6.0MB

  • MD5

    3cc4678d3265f53a87f44f77d2ae529e

  • SHA1

    4482f39c73fc40e05d0356a952b9e0d4122ab996

  • SHA256

    cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80

  • SHA512

    20966d8ed2235681ac661f0e7e088bd7183962421a7a02dec8542f85aa5302269f24827868d8ef93e9e22e4be0a1b0782249e3e591fcd06a563c13b39a686170

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Drops file in Drivers directory 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe
    "C:\Users\Admin\AppData\Local\Temp\cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3780
    • C:\Windows\system\lsass.exe
      "C:\Windows\system\lsass.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      PID:4460
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\CD0415~1.EXE > nul
      2⤵
        PID:3404

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\System\lsass.exe
      Filesize

      6.0MB

      MD5

      3cc4678d3265f53a87f44f77d2ae529e

      SHA1

      4482f39c73fc40e05d0356a952b9e0d4122ab996

      SHA256

      cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80

      SHA512

      20966d8ed2235681ac661f0e7e088bd7183962421a7a02dec8542f85aa5302269f24827868d8ef93e9e22e4be0a1b0782249e3e591fcd06a563c13b39a686170

    • C:\Windows\system\lsass.exe
      Filesize

      6.0MB

      MD5

      3cc4678d3265f53a87f44f77d2ae529e

      SHA1

      4482f39c73fc40e05d0356a952b9e0d4122ab996

      SHA256

      cd0415bdbb08803ac6cdc8243618bd5b70403c3f107abd7be1b5d1a9bd9c7a80

      SHA512

      20966d8ed2235681ac661f0e7e088bd7183962421a7a02dec8542f85aa5302269f24827868d8ef93e9e22e4be0a1b0782249e3e591fcd06a563c13b39a686170

    • memory/3404-135-0x0000000000000000-mapping.dmp
    • memory/3780-133-0x00000000299F0000-0x0000000029FF5000-memory.dmp
      Filesize

      6.0MB

    • memory/4460-130-0x0000000000000000-mapping.dmp
    • memory/4460-134-0x00000000299F0000-0x0000000029FF5000-memory.dmp
      Filesize

      6.0MB

    • memory/4460-136-0x00000000299F0000-0x0000000029FF5000-memory.dmp
      Filesize

      6.0MB