General

  • Target

    b9032c03fea5bf390dd84ebdce4b8134da6f3554ce0d0d374ceb5a8562af4dd0

  • Size

    666KB

  • Sample

    221126-1sxfmsgd75

  • MD5

    55bc4f0b5337608015a19e4d4deb1914

  • SHA1

    7ebc776a573fbaa6a4658fc53a4db42a4b17138c

  • SHA256

    b9032c03fea5bf390dd84ebdce4b8134da6f3554ce0d0d374ceb5a8562af4dd0

  • SHA512

    e5436d72f9376008826ba4ff55169008b6ab5b1d5993f57796d35f14cefdabc8e97bd1864550edd6823104c5c86068949b489dc419babf230689016a65c6fb8a

  • SSDEEP

    12288:X+v1TNiJjCYx0b25a/XJbJW8WbjzIRHxAmvsVG7ZUvz:uv1En0bt/ZdWqlxAmv56

Malware Config

Extracted

Family

djvu

C2

http://fresherlights.com/test1/get.php

Attributes
  • extension

    .kcvp

  • offline_id

    hlqzhQ6w5SquNDF4Ul2XBDJQkSIKbAT6rmRBTit1

  • payload_url

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

    http://fresherlights.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-lj5qINGbTc 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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0607Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

55.9

Botnet

517

C2

https://t.me/headshotsonly

https://steamcommunity.com/profiles/76561199436777531

Attributes
  • profile_id

    517

Targets

    • Target

      b9032c03fea5bf390dd84ebdce4b8134da6f3554ce0d0d374ceb5a8562af4dd0

    • Size

      666KB

    • MD5

      55bc4f0b5337608015a19e4d4deb1914

    • SHA1

      7ebc776a573fbaa6a4658fc53a4db42a4b17138c

    • SHA256

      b9032c03fea5bf390dd84ebdce4b8134da6f3554ce0d0d374ceb5a8562af4dd0

    • SHA512

      e5436d72f9376008826ba4ff55169008b6ab5b1d5993f57796d35f14cefdabc8e97bd1864550edd6823104c5c86068949b489dc419babf230689016a65c6fb8a

    • SSDEEP

      12288:X+v1TNiJjCYx0b25a/XJbJW8WbjzIRHxAmvsVG7ZUvz:uv1En0bt/ZdWqlxAmv56

    • 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

    • Executes dropped EXE

    • Checks computer location settings

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

    • Modifies file permissions

    • Adds Run key to start application

    • 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

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks