Overview

overview

10

Static

static

1

RNSM00341.7z

windows7-x64

10

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General

  • Target

    RNSM00341.7z

  • Size

    4.7MB

  • Sample

    241110-vp6l9azre1

  • MD5

    89d6fd75828e74fc7447e9a0c5c88fd8

  • SHA1

    2a50e26fa610d0782d88cd932dea6a75d680fc16

  • SHA256

    d65ee752bb8afda85bf33265285ea298d1ed91ac0b863a34c1dda243dfb52762

  • SHA512

    3668a93ba0186d8f9b9afa894652417a81117f1cc53b88ad1b1f353293d4e63770cf5b5df1e16756366c995d648291ecb428e2203c6ffd25154b8cd4c0639bfd

  • SSDEEP

    98304:35Vodvxpy8/z2MeKGsWrj6ovnuW++kaWYKjOkzVjeBP8CEWlt:pVodvH/z2AGsWf6suraXfkZj6Pa2

Score
10/10
gandcrabtroldeshbackdoorcredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealertrojan

Malware Config

Extracted

Path

C:\$Recycle.Bin\SPYBQEEUUQ-DECRYPT.txt

Ransom Note
---= GANDCRAB V5.0.3 =--- ***********************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: .SPYBQEEUUQ 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/fd44af66fa291bc9 | 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/fd44af66fa291bc9

Targets

    • Target

      RNSM00341.7z

    • Size

      4.7MB

    • MD5

      89d6fd75828e74fc7447e9a0c5c88fd8

    • SHA1

      2a50e26fa610d0782d88cd932dea6a75d680fc16

    • SHA256

      d65ee752bb8afda85bf33265285ea298d1ed91ac0b863a34c1dda243dfb52762

    • SHA512

      3668a93ba0186d8f9b9afa894652417a81117f1cc53b88ad1b1f353293d4e63770cf5b5df1e16756366c995d648291ecb428e2203c6ffd25154b8cd4c0639bfd

    • SSDEEP

      98304:35Vodvxpy8/z2MeKGsWrj6ovnuW++kaWYKjOkzVjeBP8CEWlt:pVodvH/z2AGsWf6suraXfkZj6Pa2

    Score
    10/10
    gandcrabtroldeshbackdoorcredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealertrojan

    • Gandcrab

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

      ransomwarebackdoorgandcrab

    • Gandcrab family

      gandcrab

    • 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 (126) files with added filename extension

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

      ransomware

    • Blocklisted process makes network request

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Drops startup file

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

      evasion

    • 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

    • Enumerates connected drives

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Sets desktop wallpaper using registry

      ransomware

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

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

3
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Virtualization/Sandbox Evasion

2
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

Peripheral Device Discovery

1
T1120

Query Registry

6
T1012

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Virtualization/Sandbox Evasion

2
T1497

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

2
T1490

Tasks