General

  • Target

    file

  • Size

    196KB

  • Sample

    220924-kgr4sacbhr

  • MD5

    739692cf6c262f147f48ad4677a59e68

  • SHA1

    d5ad5f1eb8e3f884753d06f011496440dad0dc58

  • SHA256

    b9934a24923bbc4e11767a7851c01d420e6b49cbdd81653ae680b22640a34660

  • SHA512

    0d566c07a4795dda8f434437a4c1a994f1060b767fbea408f9fedb8c33981b5133f7135395694f626ac9b65bb27a8e5b1b8f4e39a472056373389de7bac1f127

  • SSDEEP

    3072:yIzRYLXOMxCnc8551jH97dP0ZlFTSD8VgHBboiWz4/PkF4x:yrLFxCnH1jH97d4lFWgKVWz

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

54.6

Botnet

517

C2

https://t.me/huobiinside

https://mas.to/@kyriazhs1975

Attributes
  • profile_id

    517

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Extracted

Family

redline

Botnet

LogsDiller Cloud (TG: @mr_golds)

C2

77.73.134.27:8163

Attributes
  • auth_value

    4b2de03af6b6ac513ac597c2e6c1ad51

Targets

    • Target

      file

    • Size

      196KB

    • MD5

      739692cf6c262f147f48ad4677a59e68

    • SHA1

      d5ad5f1eb8e3f884753d06f011496440dad0dc58

    • SHA256

      b9934a24923bbc4e11767a7851c01d420e6b49cbdd81653ae680b22640a34660

    • SHA512

      0d566c07a4795dda8f434437a4c1a994f1060b767fbea408f9fedb8c33981b5133f7135395694f626ac9b65bb27a8e5b1b8f4e39a472056373389de7bac1f127

    • SSDEEP

      3072:yIzRYLXOMxCnc8551jH97dP0ZlFTSD8VgHBboiWz4/PkF4x:yrLFxCnH1jH97d4lFWgKVWz

    • 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.

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks