Overview

overview

10

Static

static

3575cc26ec...92.exe

windows7_x64

10

3575cc26ec...92.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    42s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27-06-2022 00:08

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General

  • Target

    3575cc26ec8d3dd669946f9156ace7eaecca470525d6af8402d0688513cd6992.exe

  • Size

    171KB

  • MD5

    0841db4bef7227c34bc9d8bcbc931410

  • SHA1

    473d3950f379a4a7c36f799c7e52929b2ff11acb

  • SHA256

    3575cc26ec8d3dd669946f9156ace7eaecca470525d6af8402d0688513cd6992

  • SHA512

    de06093dd3f330ab55762f67f9bf9827bb751136b47ecb1f5ccd7484a909661c8d8337a533cb34abbf74b8b8e1a25845970639ff66733dd3839046b1c16b0869

Score
10/10
gandcrabbackdoorransomwarespywarestealer

Malware Config

Extracted

Path

C:\LPGSFN-MANUAL.txt

Family

gandcrab

Ransom Note
---= GANDCRAB V5.2 =--- ***********************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 ARE DECRYPTION ERRORS***** Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .LPGSFN 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/bfac015bc07d021a | 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/bfac015bc07d021a

Signatures

  • Gandcrab

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

    ransomwarebackdoorgandcrab
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 8 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 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.

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3575cc26ec8d3dd669946f9156ace7eaecca470525d6af8402d0688513cd6992.exe
    "C:\Users\Admin\AppData\Local\Temp\3575cc26ec8d3dd669946f9156ace7eaecca470525d6af8402d0688513cd6992.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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c vssadmin delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1528
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:688
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:336

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

2
T1107

Modify Registry

1
T1112

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

2
T1490

Defacement

1
T1491

Replay Monitor

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Downloads

  • memory/688-58-0x0000000000000000-mapping.dmp
    Download
  • memory/1228-54-0x00000000751C1000-0x00000000751C3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1228-56-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

    Download
  • memory/1228-55-0x0000000000230000-0x0000000000259000-memory.dmp
    Filesize

    164KB

    Download
  • memory/1228-59-0x0000000000400000-0x000000000042F000-memory.dmp
    Filesize

    188KB

    Download
  • memory/1528-57-0x0000000000000000-mapping.dmp
    Download