Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-09-2024 23:22

General

  • Target

    ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Form2.cs

  • Size

    1KB

  • MD5

    83f83090d9da32bae077e54423724a63

  • SHA1

    478834da764f3aa651ad4d060716661f9e6bf772

  • SHA256

    a836e2779d7357944dabf62196f7b6e5b34ebb1c4f604cf011f261fda686cdbb

  • SHA512

    e2f94aba920508cd24ddb0866f70b8db955a9b175b58d9934016a85a80ea86cf1ede36f54aa54b4c801cdf47b2d50fafc74de9c6006de2f7cddca3c63d8d4105

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\ChaosRansomwareBuilderVersion4-main\Src Code\CustomWindowsForm\Form2.cs"
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
      "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\ChaosRansomwareBuilderVersion4-main\Src Code\CustomWindowsForm\Form2.cs"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: CmdExeWriteProcessMemorySpam
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:2928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

    Filesize

    3KB

    MD5

    9b29bba2b15d7327499e44fcedbd9dac

    SHA1

    72e73782fed92d5c85a1ba345acebe8816e9ee6a

    SHA256

    e8f50bc84c7f202c4706f7a4cc6925e0d3c4e1a3d1b65474b35287a55c7fa2e1

    SHA512

    67b82834c2ff710bbb2fa34e282c967410b04f7144c70d573d43a6cad3d5160656aa19e89183b691dcb8bc436c30df297f297de1ffd9c0d4850c6b54fcbff442