General

  • Target

    04655707a38854f063a6334a2d88ffa0e9177b3064fb4cded9ae37aa7d1f3055

  • Size

    826KB

  • Sample

    211205-tn86bafdf6

  • MD5

    5faf17a19988f4b3852e454e0c3a7eed

  • SHA1

    229d6e92780a001377cb95df5fb1244116dba8f4

  • SHA256

    04655707a38854f063a6334a2d88ffa0e9177b3064fb4cded9ae37aa7d1f3055

  • SHA512

    5aadce0758ae38051c6107263a15068811eca86c47ce6c6cc376cc95fed435ca2e19e90130ba4c04833018b4988d719cb53932aa791a289952a06d52293241d4

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

      04655707a38854f063a6334a2d88ffa0e9177b3064fb4cded9ae37aa7d1f3055

    • Size

      826KB

    • MD5

      5faf17a19988f4b3852e454e0c3a7eed

    • SHA1

      229d6e92780a001377cb95df5fb1244116dba8f4

    • SHA256

      04655707a38854f063a6334a2d88ffa0e9177b3064fb4cded9ae37aa7d1f3055

    • SHA512

      5aadce0758ae38051c6107263a15068811eca86c47ce6c6cc376cc95fed435ca2e19e90130ba4c04833018b4988d719cb53932aa791a289952a06d52293241d4

    • 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