Overview

overview

10

Static

static

1

RNSM00350.7z

windows7-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    RNSM00350.7z

  • Size

    3.5MB

  • Sample

    241109-yps8ps1dkr

  • MD5

    982af95b63378afb632aa782abff4687

  • SHA1

    c0f248b4142b1b226b8a3b370662193eacba4559

  • SHA256

    062ec652ee4d6b0b3a49eb28d3e1acbda510e05104f7567d9080a2b1d9ee5577

  • SHA512

    58972370e742b87eaf42ffcc041f26cf98b9d37fa52bc2388fc9e42dee847c303ce85698bf35bf28bd6fb299571f07ece08ffa453f034ad842d91581a614f63d

  • SSDEEP

    98304:BGcHrCjqzcbp9tuPcgg0ayD0mZUjRcZU0qopxP:BjrHituEgg05p6jRv09P

Score
10/10
gandcrabnanocoreremcostroldeshbackdoorcredential_accessdefense_evasiondiscoveryevasionexecutionimpactkeyloggerpersistenceransomwareratspywarestealertrojanupx

Malware Config

Extracted

Path

F:\$RECYCLE.BIN\QLVSTQLJ-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: .QLVSTQLJ 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/f86c96cab488d56b | 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/f86c96cab488d56b

Extracted

Path

C:\Users\README_BACK_FILES.htm

Ransom Note
<html><header><style>body {background: grey;color: white;}.c {width: 50%;margin: 0 auto;padding: 30px;background: rgba(0,0,0,.3);border-radius:30px;}</style></header><body><div><center><h2>YOUR PERSONAL ID:</h2></center><div class="c" style="text - align: center; ">0xT1nV7XWExxeWtsYWFQcWxlZ09rRms= </div></div><div><center><h2>YOUR FILES ARE ENCRYPTED! </h2></center><div class="c">TO DECRYPT, FOLLOW THE INSTRUCTIONS BELOW.<br><br>To recover data you need decryptor.<br><br>To get the decryptor you should:<br>Send 1 crypted test image or text file or document to [email protected] ||| [email protected]<br>In the letter include your personal ID (look at the beginning of this document).<br>We will give you the decrypted file and assign the price for decryption all files<br><br>We can decrypt one file in quality the evidence that we have the decoder.</div><div><center><h2>MOST IMPORTANT!!!</h2></center><div class="c">Do not contact other services that promise to decrypt your files, this is fraud on their part! They will buy a decoder from us, and you will pay more for his services. No one, except [email protected] ||| [email protected], will decrypt your files. <br><br>Only [email protected] ||| [email protected] can decrypt your files. Do not trust anyone besides [email protected] ||| [email protected]<br>Antivirus programs can delete this document and you can not contact us later.<br>Attempts to self-decrypting files will result in the loss of your data</div></body></html>

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.68.59.34:54309

Mutex

b6738a3a-4c73-44b0-84e2-2309553ca598

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-08-14T03:25:16.009296436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    54309

  • default_group

    Default

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    b6738a3a-4c73-44b0-84e2-2309553ca598

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    194.68.59.34

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      RNSM00350.7z

    • Size

      3.5MB

    • MD5

      982af95b63378afb632aa782abff4687

    • SHA1

      c0f248b4142b1b226b8a3b370662193eacba4559

    • SHA256

      062ec652ee4d6b0b3a49eb28d3e1acbda510e05104f7567d9080a2b1d9ee5577

    • SHA512

      58972370e742b87eaf42ffcc041f26cf98b9d37fa52bc2388fc9e42dee847c303ce85698bf35bf28bd6fb299571f07ece08ffa453f034ad842d91581a614f63d

    • SSDEEP

      98304:BGcHrCjqzcbp9tuPcgg0ayD0mZUjRcZU0qopxP:BjrHituEgg05p6jRv09P

    Score
    10/10
    gandcrabnanocoreremcostroldeshbackdoorcredential_accessdefense_evasiondiscoveryevasionexecutionimpactkeyloggerpersistenceransomwareratspywarestealertrojanupx

    • Gandcrab

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

      ransomwarebackdoorgandcrab

    • Gandcrab family

      gandcrab

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

      keyloggertrojanstealerspywarenanocore

    • Nanocore family

      nanocore

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

      ratremcos

    • Remcos family

      remcos

    • Troldesh family

      troldesh

    • Troldesh, Shade, Encoder.858

      Troldesh is a ransomware spread by malspam.

      ransomwaretrojantroldesh

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Renames multiple (374) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Sets desktop wallpaper using registry

      ransomware

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Direct Volume Access

1
T1006

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

4
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials from Password Stores

2
T1555

Credentials from Web Browsers

1
T1555.003

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

2
T1490

Tasks