Analysis

  • max time kernel
    140s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    12/06/2024, 17:42

General

  • Target
    a1900e34fbf2279d4ff96027156f27b3_JaffaCakes118.exe
  • Size 230KB
  • Sample240612-v9179stdka
  • SHA256 071829bd858ce263733337bd3ccc4a1976a3f582aa50af31815a2edb2a692f01
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\DFLQQ-DECRYPT.txt

Ransom Note
  • ---= GANDCRAB V5.0 =--- Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .DFLQQ The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. The server with your key is in a closed network TOR. You can get there by the following ways: ---------------------------------------------------------------------------------------- | 0. Download Tor browser - https://www.torproject.org/ | 1. Install Tor browser | 2. Open Tor Browser | 3. Open link in TOR browser: http://gandcrabmfe6mnef.onion/351e99ea10bcaf65 | 4. Follow the instructions on this page ---------------------------------------------------------------------------------------- On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free. ATTENTION! IN ORDER TO PREVENT DATA DAMAGE: * DO NOT MODIFY ENCRYPTED FILES * DO NOT CHANGE DATA BELOW ---BEGIN GANDCRAB KEY--- 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 ---END GANDCRAB KEY--- ---BEGIN PC DATA--- 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 ---END PC DATA---
URLs
  • http://gandcrabmfe6mnef.onion/351e99ea10bcaf65

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.

  • Renames multiple (282) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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
  • Drops file in Program Files directory 23 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 4 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\a1900e34fbf2279d4ff96027156f27b3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a1900e34fbf2279d4ff96027156f27b3_JaffaCakes118.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2616
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2532

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        • Size 70KB
        • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
        • MD5 SHA1 SHA512 SSDEEP

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 bd37602dbbbbea670e3967654fde1f179d790226c04bee594c79c91c733af34e
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 80e69e3feb6b5242573bbd450340a84b499b04d2bacd07b1d1c7d35a88e50d54
        • MD5 SHA1 SHA512

        Cab4378.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Cab4378.tmp
        • Size 65KB
        • SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
        • MD5 SHA1 SHA512 SSDEEP

        Tar438B.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar438B.tmp
        • Size 171KB
        • SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
        • MD5 SHA1 SHA512 SSDEEP

        Tar446B.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar446B.tmp
        • Size 181KB
        • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
        • MD5 SHA1 SHA512 SSDEEP

        DFLQQ-DECRYPT.txt

        • Path F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\DFLQQ-DECRYPT.txt
        • Size 8KB
        • SHA256 f3d94313839d062e0dbd8952032f46391b427e528821edadcb697bc95eb89583
        • MD5 SHA1 SHA512 SSDEEP

        memory/3068-2-0x00000000004F0000-0x00000000005F0000-memory.dmp

        memory/3068-3-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/3068-739-0x0000000000400000-0x000000000043F000-memory.dmp

        memory/3068-836-0x00000000004F0000-0x00000000005F0000-memory.dmp

        memory/3068-837-0x0000000000400000-0x0000000000436000-memory.dmp