General

  • Target

    f66f58487bf82fede9d80f8ae3f2d89882e7c72654f94db3353dfc527192a08a

  • Size

    328KB

  • Sample

    220928-av2v2afhep

  • MD5

    b2b0ca3c18afcd64805a03f031703fd0

  • SHA1

    3bbd53276aeccb7f20a97396d0bae43a9f0c790a

  • SHA256

    f66f58487bf82fede9d80f8ae3f2d89882e7c72654f94db3353dfc527192a08a

  • SHA512

    b239aa18b732f3a821c215bd2b3816f4ce67b1cf09ed6213895795913fb6e3c7f2ae6628ab565ab1af7ed25b1a3cc907beaf65efe17e9b4d998d481798255def

  • SSDEEP

    3072:rKXsBw//YZli94Mpm6CF5g1jIC40auIe+bG943OvdXuO40KpC/MM/h3BsxkgaBCN:rqN/A/f6lw0alo43Oj403MnigabwVfs

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

11

C2

51.89.201.21:7161

Attributes
  • auth_value

    e6aadafed1fda7723d7655a5894828d2

Targets

    • Target

      f66f58487bf82fede9d80f8ae3f2d89882e7c72654f94db3353dfc527192a08a

    • Size

      328KB

    • MD5

      b2b0ca3c18afcd64805a03f031703fd0

    • SHA1

      3bbd53276aeccb7f20a97396d0bae43a9f0c790a

    • SHA256

      f66f58487bf82fede9d80f8ae3f2d89882e7c72654f94db3353dfc527192a08a

    • SHA512

      b239aa18b732f3a821c215bd2b3816f4ce67b1cf09ed6213895795913fb6e3c7f2ae6628ab565ab1af7ed25b1a3cc907beaf65efe17e9b4d998d481798255def

    • SSDEEP

      3072:rKXsBw//YZli94Mpm6CF5g1jIC40auIe+bG943OvdXuO40KpC/MM/h3BsxkgaBCN:rqN/A/f6lw0alo43Oj403MnigabwVfs

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • 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.

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • 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