General

  • Target

    8e72f80f57f0a2061ed8707b4ae8bd0b.exe

  • Size

    706KB

  • Sample

    230311-m9wc1shc74

  • MD5

    8e72f80f57f0a2061ed8707b4ae8bd0b

  • SHA1

    067df8847a06e814faa9709ff132934f1bb954e5

  • SHA256

    2bc245304e616ca5aea425c94b918d2f2cafcf237da2c08852523d8cbb553ae7

  • SHA512

    91eb36a5dad33f09e15d231c93027ac878c39f847169d155f9d6f289cdf74c9f6b0ce79a60ae3e86e8724fbcff056650a253c648a3481609b626fc3226126182

  • SSDEEP

    12288:zkjJyKVg8x64+MVR/t7WXjDC0OPUg9HZexMlJeqtRhjRDyBPc:zORg8FRV7WKDMgrblJeWhtuB

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .craa

  • offline_id

    fTU4hYOJ0niv7WAg9utRTzxXv2TcoEvGPJhzIot1

  • payload_url

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

    http://zexeq.com/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-hhA4nKfJBj 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: support@freshmail.top Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0661JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.9

Botnet

694f12963bedb0c6040fb3c74aac71e5

C2

https://t.me/nemesisgrow

https://steamcommunity.com/profiles/76561199471222742

http://65.109.12.165:80

Attributes
  • profile_id_v2

    694f12963bedb0c6040fb3c74aac71e5

Targets

    • Target

      8e72f80f57f0a2061ed8707b4ae8bd0b.exe

    • Size

      706KB

    • MD5

      8e72f80f57f0a2061ed8707b4ae8bd0b

    • SHA1

      067df8847a06e814faa9709ff132934f1bb954e5

    • SHA256

      2bc245304e616ca5aea425c94b918d2f2cafcf237da2c08852523d8cbb553ae7

    • SHA512

      91eb36a5dad33f09e15d231c93027ac878c39f847169d155f9d6f289cdf74c9f6b0ce79a60ae3e86e8724fbcff056650a253c648a3481609b626fc3226126182

    • SSDEEP

      12288:zkjJyKVg8x64+MVR/t7WXjDC0OPUg9HZexMlJeqtRhjRDyBPc:zORg8FRV7WKDMgrblJeWhtuB

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks