Overview

overview

10

Static

static

bbd29c1bed...f1.exe

windows7_x64

10

bbd29c1bed...f1.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    160s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    01-07-2022 07:12

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General

  • Target

    bbd29c1bed7bc593145104df7f0012937f67218b34e1013fec47ddbcb0debaf1.exe

  • Size

    225KB

  • MD5

    d84c5e55de25071b9c01b032be8343cc

  • SHA1

    40c572ebba714271818532db9abdb4c28ef27177

  • SHA256

    bbd29c1bed7bc593145104df7f0012937f67218b34e1013fec47ddbcb0debaf1

  • SHA512

    8303e0bd44251dd7550f2279fbd79b0d3e51141ab17d0088df34fd78754fc63eca688e21c960489273c6dbb7d0b62b908d64be75e8b22924dc40c279159ec063

Score
10/10
gandcrabbackdoorransomwarespywarestealersuricata

Malware Config

Extracted

Path

C:\LCLMPC-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: .LCLMPC 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/d1a193131030f592 | 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/d1a193131030f592

Signatures

  • GandCrab Payload 2 IoCs
  • Gandcrab

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

    ransomwarebackdoorgandcrab
  • suricata: ET MALWARE [eSentire] Win32/GandCrab v4/5 Ransomware CnC Activity

    suricata: ET MALWARE [eSentire] Win32/GandCrab v4/5 Ransomware CnC Activity

    suricata
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 5 IoCs

    Ransomware generally changes the extension on encrypted files.

    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 24 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 21 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bbd29c1bed7bc593145104df7f0012937f67218b34e1013fec47ddbcb0debaf1.exe
    "C:\Users\Admin\AppData\Local\Temp\bbd29c1bed7bc593145104df7f0012937f67218b34e1013fec47ddbcb0debaf1.exe"
    1⤵
    • Modifies extensions of user files
    • 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:1620
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2084
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:424

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

1
T1107

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

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

Replay Monitor

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Downloads

  • memory/1620-131-0x0000000000520000-0x0000000000620000-memory.dmp
    Filesize

    1024KB

    Download
  • memory/1620-132-0x0000000000400000-0x000000000043D000-memory.dmp
    Filesize

    244KB

    Download
  • memory/1620-133-0x0000000000520000-0x0000000000620000-memory.dmp
    Filesize

    1024KB

    Download
  • memory/1620-134-0x0000000000400000-0x000000000043D000-memory.dmp
    Filesize

    244KB

    Download
  • memory/2084-135-0x0000000000000000-mapping.dmp
    Download