General

  • Target

    37884db3eed16492eae4908d26579e61405e67a30b60f44ff1a2e04c646a4016

  • Size

    827KB

  • Sample

    211206-l5wybagfd5

  • MD5

    32767abc450f13131a2159d0813f7c96

  • SHA1

    ac201be6ba67444d2452e794dd79dce1a1a477c6

  • SHA256

    37884db3eed16492eae4908d26579e61405e67a30b60f44ff1a2e04c646a4016

  • SHA512

    d4b9caa629dc522fb38d287df22eb9f094044b900aea4e54d2d17678d47551ce1901379ece114614f5519ec64ba9ace6286af3c05df824870d78d09e7b40f476

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/fhsgtsspen6/get.php

Attributes
  • extension

    .wnlu

  • 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: 0357Sigrj

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

      37884db3eed16492eae4908d26579e61405e67a30b60f44ff1a2e04c646a4016

    • Size

      827KB

    • MD5

      32767abc450f13131a2159d0813f7c96

    • SHA1

      ac201be6ba67444d2452e794dd79dce1a1a477c6

    • SHA256

      37884db3eed16492eae4908d26579e61405e67a30b60f44ff1a2e04c646a4016

    • SHA512

      d4b9caa629dc522fb38d287df22eb9f094044b900aea4e54d2d17678d47551ce1901379ece114614f5519ec64ba9ace6286af3c05df824870d78d09e7b40f476

    • 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