General

  • Target

    506a53d8e84677a66895cbd172071372c6232619adc43b0ba8752f8e29d7f5bf

  • Size

    715KB

  • Sample

    220925-dpr1esdaa2

  • MD5

    1aee682baf890ddbc4db96e0269762b3

  • SHA1

    c5cdef4e1562d21be03918d408fb64e5bffb854e

  • SHA256

    506a53d8e84677a66895cbd172071372c6232619adc43b0ba8752f8e29d7f5bf

  • SHA512

    926f965106ba872c3a2961e3a74b09207c0ac4dcdc8fe0dfcd537d6e2e6a0c6b84a82ec6ce2308dbacc49400b68db747b4d277fc07c0a61aa691bb33a3cb676c

  • SSDEEP

    12288:f8tO1iRsdJu2Bl8fVk6IsWq/5thbZkj8WnCQ1yBSHeobNvOcD5fLNgpvG70:4WiAk2MyIWq/5PennyBSRJGcD5fQvN

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/test3/get.php

Attributes
  • extension

    .ofoq

  • offline_id

    xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1

  • payload_url

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

    http://winnlinne.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-EWKSsSJiVn 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@bestyourmail.ch Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0568Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

54.6

Botnet

517

C2

https://t.me/huobiinside

https://mas.to/@kyriazhs1975

Attributes
  • profile_id

    517

Targets

    • Target

      506a53d8e84677a66895cbd172071372c6232619adc43b0ba8752f8e29d7f5bf

    • Size

      715KB

    • MD5

      1aee682baf890ddbc4db96e0269762b3

    • SHA1

      c5cdef4e1562d21be03918d408fb64e5bffb854e

    • SHA256

      506a53d8e84677a66895cbd172071372c6232619adc43b0ba8752f8e29d7f5bf

    • SHA512

      926f965106ba872c3a2961e3a74b09207c0ac4dcdc8fe0dfcd537d6e2e6a0c6b84a82ec6ce2308dbacc49400b68db747b4d277fc07c0a61aa691bb33a3cb676c

    • SSDEEP

      12288:f8tO1iRsdJu2Bl8fVk6IsWq/5thbZkj8WnCQ1yBSHeobNvOcD5fLNgpvG70:4WiAk2MyIWq/5PennyBSRJGcD5fQvN

    • 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

    • 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

1
T1112

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