General

  • Target

    1835af188d48cbe9bcd2bd30d3ad843488e3b5638ca9f07a2140e6fa0146a889

  • Size

    826KB

  • Sample

    211205-p85leafca5

  • MD5

    617010675db258e761015e6a3c90edae

  • SHA1

    b26ccd3bce3c2c39b3da64916ea599b3429e1b52

  • SHA256

    1835af188d48cbe9bcd2bd30d3ad843488e3b5638ca9f07a2140e6fa0146a889

  • SHA512

    364d4357b08426fe21c27330b74f8ba3708290ebbf11458625acee5dcc8777513f865c85df8f048cfffe584f19251a3fb29df5c92f2d40aab97d25a9987c0371

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/lancer/get.php

Attributes
  • extension

    .hgsh

  • offline_id

    gYuqQ5GsAaJom08TivUVhlPzZDKd916x4NcXrWt1

  • payload_url

    http://kotob.top/dl/build2.exe

    http://tzgl.org/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-m8LBBi8x8F Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: manager@mailtemp.ch Reserve e-mail address to contact us: helprestoremanager@airmail.cc Your personal ID: 0358Sigrj

rsa_pubkey.plain

Extracted

Family

vidar

Version

48.9

Botnet

517

C2

https://qoto.org/@mniami

https://noc.social/@menaomi

Attributes
  • profile_id

    517

Targets

    • Target

      1835af188d48cbe9bcd2bd30d3ad843488e3b5638ca9f07a2140e6fa0146a889

    • Size

      826KB

    • MD5

      617010675db258e761015e6a3c90edae

    • SHA1

      b26ccd3bce3c2c39b3da64916ea599b3429e1b52

    • SHA256

      1835af188d48cbe9bcd2bd30d3ad843488e3b5638ca9f07a2140e6fa0146a889

    • SHA512

      364d4357b08426fe21c27330b74f8ba3708290ebbf11458625acee5dcc8777513f865c85df8f048cfffe584f19251a3fb29df5c92f2d40aab97d25a9987c0371

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks