Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    26-09-2024 23:22

General

  • Target

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

  • Size

    25KB

  • MD5

    d7a37a9c42386f5665eb43275b68c465

  • SHA1

    6c7889c842c2bd22cd0bcdc5610e69fb99183705

  • SHA256

    4706109b327130d031207749dfdb697d17f3fb1508300d46f774220198acbecf

  • SHA512

    d0d1abf736d81634dcd3f10959ae1ef53fdb8e6198802b6b9fc3792e85b1a9db7fad1641df691fd4e3ecd6fe3063d7ba4ad7e15a3f4435e80ae719f7d2d6fecf

  • SSDEEP

    384:9Yp4rB9EXmSaKeibOMoWCaAftxLGbAHlGtcBtauJrN5:M4rWmSaMCMoWPAH0tkR5

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\BlackForm.cs"
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2732
    • 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\BlackForm.cs"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: CmdExeWriteProcessMemorySpam
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:2600

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

    e88f95584ba6b9b8e4d5d7c8ae7e2d14

    SHA1

    0a08f29382d943f0b14223f13cadd41d12306ec5

    SHA256

    c539df90518b707bd7de4b9cf36217555c63812d72426b45627ef1c4b39fae92

    SHA512

    8ee8be9d22416c38855fc61368baca31272dd1e1cebfa9a4e4cb7ab69e7e9b158527e71cd8870795124f398adcd6a2855d1bbfda5f8fb690642a02ac95fe4055