Overview

overview

10

Static

static

3

eeaf2df9b4...18.exe

windows7-x64

10

eeaf2df9b4...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-09-2024 23:55

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    eeaf2df9b452d043891bb5b1ab54a068_JaffaCakes118.exe

  • Size

    690KB

  • MD5

    eeaf2df9b452d043891bb5b1ab54a068

  • SHA1

    b3c1a492692fe91ed8fb582b9f276ea3a0a8039d

  • SHA256

    f018326456daf09fc5cab41e9254d6ff1e8320ffd74c87668ba60ab27a7a0cb7

  • SHA512

    7d21768e3a7cb737638de353abc24a70aa77b3c927891eaab25f8c1a848c9af86b9c9e19c717db621beb4d96d6fc39327f2328f1857ac6bfb1b260d8a3d3a3e6

  • SSDEEP

    6144:Pi4Iy0HZxn7FBVmlwFuqeYq8s8w9Mq2CcjKX:Pi4IlHL7FBGwFP88Rw91cg

Score
10/10
gandcrabbackdoorcredential_accessdefense_evasiondiscoveryexecutionimpactransomwarespywarestealer

Malware Config

Extracted

Path

C:\PerfLogs\VWNUDCIEEN-DECRYPT.txt

Ransom Note
---= GANDCRAB V5.0.4 =--- ***********************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 ARE DECRYPTION ERRORS***** Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .VWNUDCIEEN 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/d216e5dbc26e6e41 | 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/d216e5dbc26e6e41

Signatures

  • Gandcrab

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

    ransomwarebackdoorgandcrab
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (281) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • 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.

    spywarestealer
  • 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
  • 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 20 IoCs

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

  • 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 2 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 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.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\eeaf2df9b452d043891bb5b1ab54a068_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eeaf2df9b452d043891bb5b1ab54a068_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4900
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:4360

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\PerfLogs\VWNUDCIEEN-DECRYPT.txt
      Filesize

      8KB

      MD5

      edf4ff6fe96ffe3675f0de01a619ca75

      SHA1

      62ac1d54c0af892e1647efc3e7443d92c85e2985

      SHA256

      9e9a391f850141167cb4deeec0132cd57e102ede615ae4e8bee70517108c1f0a

      SHA512

      d48d66ea84e16855073fd1bb1d022a708c1e74d12d09fdc00864384378638c210cec93e39302c7f1a8002d28418b41eb70f5f5e0350548b46f50cd831a48902d

      Download Submit

    • memory/2804-0-0x0000000000400000-0x00000000004B4000-memory.dmp

      Filesize

      720KB

      Download

    • memory/2804-2-0x0000000000690000-0x0000000000790000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/2804-3-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

      Download

    • memory/2804-569-0x0000000000400000-0x00000000004B4000-memory.dmp

      Filesize

      720KB

      Download

    • memory/2804-735-0x0000000000690000-0x0000000000790000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/2804-736-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

      Download

    • memory/2804-737-0x0000000000400000-0x00000000004B4000-memory.dmp

      Filesize

      720KB

      Download

    • memory/2804-745-0x0000000000400000-0x00000000004B4000-memory.dmp

      Filesize

      720KB

      Download