Analysis

  • max time kernel
    138s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2024 10:45

General

  • Target

    2024-07-25_66669f07622b379687f2b4ee31da22d5_gandcrab_karagany_metamorfo.exe

  • Size

    137KB

  • MD5

    66669f07622b379687f2b4ee31da22d5

  • SHA1

    1552bf07a82dcfd7f29d257760202e06cf1e0fa5

  • SHA256

    9b7473a95eda5d755d0bac4de215237aa50180823147f9a867620dd085947540

  • SHA512

    0b9646b52f3c4230a148fd93eb908b20153a68fbd4a5af7274dccb24a1cf2ca8d2ebc63885a174a4616c9254818de92213c51f46f4fa00d5ffe4f6c48c383661

  • SSDEEP

    1536:ymFff+GbWDmMAvQmHWlOMDSzWiO5MOYTB6m+GOgp10sWjcdCiIjUA0ZTwy2:ymjbWaMAvx2WSisuBI67CiIjD

Malware Config

Signatures

  • Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-25_66669f07622b379687f2b4ee31da22d5_gandcrab_karagany_metamorfo.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-25_66669f07622b379687f2b4ee31da22d5_gandcrab_karagany_metamorfo.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2800
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2692
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1700

Network

MITRE ATT&CK Enterprise v15

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Downloads