Overview

overview

10

Static

static

3

6a7072df1c...18.exe

windows7-x64

10

6a7072df1c...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    133s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 09:09

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General

  • Target

    6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe

  • Size

    645KB

  • MD5

    6a7072df1cee31eefc15368fbb805f9d

  • SHA1

    fa2499d515b2395814014ef6c6ed2c4149fa8a9d

  • SHA256

    7bb4305a647d0126fe5f984549c3b92bcb6af11719b78112f6d795eaaecf2e6d

  • SHA512

    3a57f9b48bee561f6f3645195f73bea1d9c676f6607ddc8101227d929525b8844ac94694ce1f29b2dc8cba84708c3de8f6ee6b3e6234b80382f96201e17fbdaa

  • SSDEEP

    6144:oog5I9axysg5OPpO7zwGtqhyRBIZi4zVh2RiUX9o:Hgu9my/5OPp+zwMSlHXs

Score
10/10
gandcrabbackdoordefense_evasionexecutionimpactransomwarespywarestealer

Malware Config

Extracted

Path

C:\$Recycle.Bin\ORGKVDWCY-DECRYPT.txt

Ransom Note
---= GANDCRAB V5.1 =--- ***********************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: .ORGKVDWCY 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/c4d264356f307954 | 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/c4d264356f307954

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 (288) 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.

  • 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).

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • 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.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\6a7072df1cee31eefc15368fbb805f9d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6a7072df1cee31eefc15368fbb805f9d_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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3104
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2568

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

1
T1490

Defacement

1
T1491

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\ORGKVDWCY-DECRYPT.txt
    Filesize

    8KB

    MD5

    2f9c9860223279215c969e920f989fa8

    SHA1

    66308fa628f73dfd3cfb56251e24cb17ce91d9f1

    SHA256

    c549ec20fea163aa4bf396015b33425bb084ad1cd2ab679c6934babe9a6d6342

    SHA512

    b79c2c7508ef695b647d6b685eb8b168cb9546b5539ca084f4df2e89b6c35da216abb00fd551f5f3f05926848bfc57a292c60b1263c833c6d81f61eef05ace6a

    Download Submit
  • memory/1824-0-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1824-2-0x00000000006F0000-0x00000000007F0000-memory.dmp
    Filesize

    1024KB

    Download
  • memory/1824-3-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

    Download
  • memory/1824-738-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1824-739-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1824-741-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1824-742-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

    Download