Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-05-2024 23:48

General

  • Target

    19c485d92b711e24d774a170f982331c_JaffaCakes118.exe

  • Size

    225KB

  • MD5

    19c485d92b711e24d774a170f982331c

  • SHA1

    72ffe40296b895d577ac89813167688828ac34b2

  • SHA256

    55b01345de106c7e566275854f2b4be144e662c809ba5502aaa361139c62ad95

  • SHA512

    28a8268ec616e8632ffd9c0080d59b0f03050310b8e6279376cff55583c51b0cb57bf8a11c4ab7662b98532c5deac7e584d1f5aa6b686c3ada3c008713101faf

  • SSDEEP

    3072:9fLnfk1mn7UVGhRXR9cEF3KGx/CgO9PcsibcbQLOEpTR5w1BNH50Idt:9fL8c4VQcEwGxagiPSbIyPKQIb

Malware Config

Extracted

Path

C:\PerfLogs\JDILLJODNR-DECRYPT.txt

Ransom Note
---= GANDCRAB V5.0.2 =--- ***********************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: .JDILLJODNR 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/e7466a80ff10af83 | 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/e7466a80ff10af83

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 (305) files with added filename extension

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • 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 34 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 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\19c485d92b711e24d774a170f982331c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\19c485d92b711e24d774a170f982331c_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • 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:3308
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2744
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PerfLogs\JDILLJODNR-DECRYPT.txt

    Filesize

    8KB

    MD5

    0cfeec18370a9d0e07920f82117dcca6

    SHA1

    fc86a0fc9d3faed0012f22313d5538a6524566d3

    SHA256

    6303f69f07b0e67da4b5a817fa1db63aa8f463f7411a7bcc752ba4681641ee28

    SHA512

    f6b984b9b3f9e84c6948df80a253cba53402eca44dbe7748b2020c3c4ee33ff08ccf4f7fede6d9589fbf055e1fd0ac9c20343c9aa48a6209ad6e1533753b8e04

  • memory/3308-1-0x0000000000590000-0x0000000000690000-memory.dmp

    Filesize

    1024KB

  • memory/3308-2-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/3308-477-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/3308-485-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/3308-498-0x0000000000590000-0x0000000000690000-memory.dmp

    Filesize

    1024KB

  • memory/3308-499-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB