General

  • Target

    MesquitaSp00ferV7.exe

  • Size

    3.4MB

  • Sample

    240902-av1b7sxcjc

  • MD5

    cbcc049160c46b78bf10465a16d9e784

  • SHA1

    1e2139e3995d9c1e47c032f3e260a172bdef1602

  • SHA256

    38e602bbf54ad86da02ff83c6324574bb330912252aab0b6291661eec3d8a3de

  • SHA512

    07bbc9fe94acd66c0b91cabeff6805cfe6898ee580f9e053013f40911768d2da0f2bc1338b3132ad97b5593a022b5dcd7d121661c5a614b506564cb5fbc4ca71

  • SSDEEP

    49152:j6zx+pSFtoalhcGRVtfyz8PgqSLumRdJ46issnR5MtAxToDF0BtWk5Q:kiW7pLtg8PUKmq9LAWoB0B

Malware Config

Targets

    • Target

      MesquitaSp00ferV7.exe

    • Size

      3.4MB

    • MD5

      cbcc049160c46b78bf10465a16d9e784

    • SHA1

      1e2139e3995d9c1e47c032f3e260a172bdef1602

    • SHA256

      38e602bbf54ad86da02ff83c6324574bb330912252aab0b6291661eec3d8a3de

    • SHA512

      07bbc9fe94acd66c0b91cabeff6805cfe6898ee580f9e053013f40911768d2da0f2bc1338b3132ad97b5593a022b5dcd7d121661c5a614b506564cb5fbc4ca71

    • SSDEEP

      49152:j6zx+pSFtoalhcGRVtfyz8PgqSLumRdJ46issnR5MtAxToDF0BtWk5Q:kiW7pLtg8PUKmq9LAWoB0B

    • Cerber

      Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • UPX packed file

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

    • Checks whether UAC is enabled

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks