Analysis

  • max time kernel
    141s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2024 11:02

General

  • Target

    2024-07-25_2f94f011fadc29618c1e1b48957259a5_gandcrab_karagany_metamorfo.exe

  • Size

    137KB

  • MD5

    2f94f011fadc29618c1e1b48957259a5

  • SHA1

    3afd9e0dffe0a92ae7cd27cfcda5573b460e6ce3

  • SHA256

    ef546d7c029d8444dec671561df0feaf14309c57b273143e88cd7f91cca9046f

  • SHA512

    269dc8845394a1fbaf7d91f5bf29cfea3b3ab0e0a5e5dbcb6a6387ba9bd7567a557f26d170a7ab1dbb4cd45c8a175eefefda0f9bc5c83b35e12cf420de8907f7

  • SSDEEP

    1536:ymFff+GbWDmMAvQmHWlOMDSzWiO5MOYTB6m+GAgp10sWjcdCiIjUA0ZTwy2:ymjbWaMAvx2WSisuBO67CiIjD

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_2f94f011fadc29618c1e1b48957259a5_gandcrab_karagany_metamorfo.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-25_2f94f011fadc29618c1e1b48957259a5_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:4788
    • 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:1588
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1400

Network

MITRE ATT&CK Enterprise v15

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Downloads