General

  • Target

    2bdb0e32-40ae-4dc8-a13d-57ca834ee879.zip

  • Size

    3.0MB

  • Sample

    210422-cqak1bhsbx

  • MD5

    a2202abffb7ae5c6ef5dd16c74641085

  • SHA1

    d2824f178fd2544198b5527e5e63e760e526cf42

  • SHA256

    a98f3507b6a0cda364d41e882fe140d34befe082047ba9d67132e8093146c281

  • SHA512

    1cb620d80dc8871f065424f9e6dc75ebd5ad718697c89182314f7e8a11db97d2d93ee5f659f7bffef1d574fc97959b29c0bad22c64a72b7f085681c3f1890e23

Malware Config

Targets

    • Target

      comprovante.exe

    • Size

      5.3MB

    • MD5

      2f28d85d5893201875c2b9116ce0e159

    • SHA1

      1b1673e295cf3ca34efde7e0e3ce8ae331dbf166

    • SHA256

      eec0954dcf773f42f0dad7b7ba895b59c201d2fa7d659c8fb4263a12ce32ec05

    • SHA512

      fdd97316559707a62e6793711fbd078e6138565fd36457ee07e9f9eb2bc17038235759ba297fe0880e2d6c05f8a616d880c9155ac3a57117322a5ab1a29917fc

    • CyberGate, Rebhip

      CyberGate is a lightweight remote administration tool with a wide array of functionalities.

    • Adds policy Run key to start application

    • Executes dropped EXE

    • Modifies Installed Components in the registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

3
T1060

Defense Evasion

Modify Registry

3
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks