Overview

overview

10

Static

static

10

e5c522e14a...b4.exe

windows7_x64

10

e5c522e14a...b4.exe

windows10_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    28-01-2022 17:47

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General

  • Target

    e5c522e14a66c7ee82d5e68db74f8b44d1a8e43e4a674b17a8405b21a9845bb4.exe

  • Size

    139KB

  • MD5

    43dfb6a59130c5b3dfc417b10d347498

  • SHA1

    312dba38f8bcc99f2a523b1ca8e421dfcec73005

  • SHA256

    e5c522e14a66c7ee82d5e68db74f8b44d1a8e43e4a674b17a8405b21a9845bb4

  • SHA512

    3f84325328f07f4d5f63f2a800d10f75e8da96f4f6c479086fd505b83654fca31815e5d7d2fed2228034335d12403726fd822b0f29e88a391e452d9e5d01e1cb

Score
10/10
gandcrabbackdoorransomwarespywarestealersuricata

Malware Config

Extracted

Path

C:\ONZINRJZ-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: .ONZINRJZ 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/379bbd2739161a0e | 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/379bbd2739161a0e

Signatures

  • 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 14 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • 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 44 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 10 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e5c522e14a66c7ee82d5e68db74f8b44d1a8e43e4a674b17a8405b21a9845bb4.exe
    "C:\Users\Admin\AppData\Local\Temp\e5c522e14a66c7ee82d5e68db74f8b44d1a8e43e4a674b17a8405b21a9845bb4.exe"
    1⤵
    • Modifies extensions of user files
    • 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:1580
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1072
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1904

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

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

3
T1082

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/1580-55-0x0000000074F11000-0x0000000074F13000-memory.dmp
    Filesize

    8KB

    Download