General

  • Target

    3baef98d0d6c6f85e678ce5f1a0790890f19657e9c667085489223a0c2349417

  • Size

    145KB

  • Sample

    221001-nme8ysghgk

  • MD5

    4b0c828582fe3d5c9d93a9534c45cc8b

  • SHA1

    893b335911aefd9107f296c299f706558f567b62

  • SHA256

    3baef98d0d6c6f85e678ce5f1a0790890f19657e9c667085489223a0c2349417

  • SHA512

    c67e30fc95d06b50e5fbe1b3339e868a004934cd63ada2815f55c9cacc89240e414da584ddca40633e2b5afde12ba2f15ee7df842a8254ccc755566f4ac85435

  • SSDEEP

    3072:UvzqsSZRJnfctsaxgeITRkIdSoU6Cmr0giUoH:hsoM+1TRHSoLxi7H

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .ofww

  • offline_id

    xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1

  • payload_url

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

    http://winnlinne.com/files/1/build3.exe

  • ransomnote

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rsa_pubkey.plain

Extracted

Family

vidar

Version

54.7

Botnet

517

C2

https://t.me/trampapanam

https://nerdculture.de/@yoxhyp

Attributes
  • profile_id

    517

Extracted

Family

redline

Botnet

installi

C2

78.153.144.6:2510

Attributes
  • auth_value

    f7a95740dfddbaa1471d1ac4f63cb78e

Targets

    • Target

      3baef98d0d6c6f85e678ce5f1a0790890f19657e9c667085489223a0c2349417

    • Size

      145KB

    • MD5

      4b0c828582fe3d5c9d93a9534c45cc8b

    • SHA1

      893b335911aefd9107f296c299f706558f567b62

    • SHA256

      3baef98d0d6c6f85e678ce5f1a0790890f19657e9c667085489223a0c2349417

    • SHA512

      c67e30fc95d06b50e5fbe1b3339e868a004934cd63ada2815f55c9cacc89240e414da584ddca40633e2b5afde12ba2f15ee7df842a8254ccc755566f4ac85435

    • SSDEEP

      3072:UvzqsSZRJnfctsaxgeITRkIdSoU6Cmr0giUoH:hsoM+1TRHSoLxi7H

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Modifies Windows Defender Real-time Protection settings

    • Modifies security service

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • UAC bypass

    • 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.

    • 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 Microsoft Outlook profiles

    • 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 Enterprise v6

Tasks