Overview

overview

10

Static

static

10

9b5b364a32...le.exe

windows7_x64

10

9b5b364a32...le.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    181s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    26-07-2021 12:58

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General

  • Target

    9b5b364a32c759ada38bdc4cbfaad3ed8dc333f87796e27eef52a96d43c821a2.sample.exe

  • Size

    471KB

  • MD5

    335859768d9a489eab3e3cbd157fb98f

  • SHA1

    18c379b521788fc610623129ec3960de0f15f19d

  • SHA256

    9b5b364a32c759ada38bdc4cbfaad3ed8dc333f87796e27eef52a96d43c821a2

  • SHA512

    69576fa9a499ce667b011a9108c4cd9c276992709b89d930bb6bb8afbf28adf696faa391e7a1e928414a573f549dcccf43c91862a7017be914bcb1f10fea206c

Score
10/10
gandcrabbackdoorransomwarespywarestealer

Malware Config

Extracted

Path

C:\HBTFGVFTN-DECRYPT.txt

Ransom Note
---= GANDCRAB V5.0.4 =--- Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .HBTFGVFTN 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/bea656dae863e17b | 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/bea656dae863e17b

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 4 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 39 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 8 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\9b5b364a32c759ada38bdc4cbfaad3ed8dc333f87796e27eef52a96d43c821a2.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\9b5b364a32c759ada38bdc4cbfaad3ed8dc333f87796e27eef52a96d43c821a2.sample.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:1860
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1820
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1972

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/1820-61-0x0000000000000000-mapping.dmp
    Download
  • memory/1860-60-0x0000000075721000-0x0000000075723000-memory.dmp
    Filesize

    8KB

    Download