Overview

overview

10

Static

static

10

ransomware...3n.exe

windows7-x64

ransomware...3n.exe

windows10-2004-x64

ransomware...le.exe

windows7-x64

ransomware...le.exe

windows10-2004-x64

ransomware...it.exe

windows7-x64

10

ransomware...it.exe

windows10-2004-x64

10

ransomware...le.exe

windows10-2004-x64

10

ransomware... 5.exe

windows7-x64

10

ransomware... 5.exe

windows10-2004-x64

10

ransomware...de.exe

windows7-x64

10

ransomware...de.exe

windows10-2004-x64

10

ransomware...ck.exe

windows7-x64

7

ransomware...ck.exe

windows10-2004-x64

7

ransomware...ye.exe

windows7-x64

6

ransomware...ye.exe

windows10-2004-x64

6

ransomware...ap.exe

windows7-x64

6

ransomware...ap.exe

windows10-2004-x64

6

ransomware...ya.exe

windows7-x64

6

ransomware...ya.exe

windows10-2004-x64

6

ransomware...om.exe

windows7-x64

10

ransomware...om.exe

windows10-2004-x64

10

ransomware...ab.exe

windows7-x64

10

ransomware...ab.exe

windows10-2004-x64

10

ransomware...ye.exe

windows7-x64

10

ransomware...ye.exe

windows10-2004-x64

10

ransomware...ni.exe

windows7-x64

10

ransomware...ni.exe

windows10-2004-x64

10

ransomware...pt.exe

windows7-x64

10

ransomware...pt.exe

windows10-2004-x64

10

ransomware...ya.exe

windows7-x64

7

ransomware...ya.exe

windows10-2004-x64

7

ransomware...en.exe

windows7-x64

8

Resubmissions

05/02/2025, 08:55

250205-kvkxmayrcz10

05/02/2025, 06:37

250205-hdsvsswldm10

17/03/2024, 04:49

240317-ffz1saef6510

Analysis

  • max time kernel
    180s
  • max time network
    189s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17/03/2024, 04:49

Sharing

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Report Analysis Logs

General

  • Target
    ransomwares/GandCrab/GandCrab.exe
  • Size 424KB
  • Sample240317-ffz1saef65
  • SHA256 49b769536224f160b6087dc866edf6445531c6136ab76b9d5079ce622b043200
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
gandcrabbackdoorransomware

Malware Config

Extracted

Path

  • C:\Users\IOBAQVGLBM-DECRYPT.txt

Ransom Note
  • ---= GANDCRAB V5.0.3 =--- ***********************UNDER NO CIRCUMSTANCES DO NOT DELETE THIS FILE, UNTIL ALL YOUR DATA IS RECOVERED*********************** *****FAILING TO DO SO, WILL RESULT IN YOUR SYSTEM CORRUPTION, IF THERE WILL BE DECRYPTION ERRORS***** Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .IOBAQVGLBM 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/ca9757c352489102 | 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/ca9757c352489102

Signatures

  • Gandcrab

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

    ransomwarebackdoorgandcrab
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (257) files with added filename extension

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

    ransomware
  • 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
    ransomware
  • Drops file in Program Files directory 31 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\ransomwares\GandCrab\GandCrab.exe
    "C:\Users\Admin\AppData\Local\Temp\ransomwares\GandCrab\GandCrab.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2624
    • C:\Windows\SysWOW64\wermgr.exe
      "C:\Windows\System32\wermgr.exe"
      2⤵
      • Enumerates connected drives
      • Sets desktop wallpaper using registry
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Windows\SysWOW64\wbem\wmic.exe
        "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:876
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2940

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        94308059B57B3142E455B38A6EB92015
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        • Size 67KB
        • SHA256 b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        94308059B57B3142E455B38A6EB92015
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 a8113ac33e1e3aa02f70005481ad57452f3855f03e832932ab00a6a2661c3f67
        • MD5 SHA1 SHA512
        Submit Download

        94308059B57B3142E455B38A6EB92015
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 1211dd48287d4b1c9279a4c2d3ab512005db2a5daa81fafe0405d341e7ffd34f
        • MD5 SHA1 SHA512
        Submit Download

        94308059B57B3142E455B38A6EB92015
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 713358af3da59fc9d64349c382c086622f727f9d3fbdcb51293a5d9a124047e0
        • MD5 SHA1 SHA512
        Submit Download

        Cab1F36.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\Cab1F36.tmp
        • Size 65KB
        • SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        Tar20B3.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\Tar20B3.tmp
        • Size 175KB
        • SHA256 a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        IOBAQVGLBM-DECRYPT.txt
        • Path C:\Users\IOBAQVGLBM-DECRYPT.txt
        • Size 8KB
        • SHA256 1cd048c294fe1471ffb4d3273f6e2938f78da44a410564a2322bf527dd9c80bd
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1100-669-0x0000000000400000-0x0000000000428000-memory.dmp
        Download

        memory/1100-781-0x0000000000400000-0x0000000000428000-memory.dmp
        Download

        memory/2624-0-0x0000000000400000-0x000000000046A000-memory.dmp
        Download