General

  • Target
    80CDFC120B7824E7CB5B34FC9AB1B6B43B84DFB435FD8.exe
  • Size 206KB
  • Sample220321-qf3rsacfej
  • SHA256 80cdfc120b7824e7cb5b34fc9ab1b6b43b84dfb435fd8f3e681ad4ae0ebd41de
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

Botnet
  • bomji1234

C2
  • 86.107.197.196:63065

Attributes
  • auth_value

    c1142ca8af2e545509032e96c9bc48d7

Extracted

Family
  • vidar

Version
  • 50.9

Botnet
  • 937

C2
  • https://ieji.de/@sam7al

  • https://busshi.moe/@sam0al

Attributes
  • profile_id

    937

Extracted

Family
  • djvu

C2
  • http://fuyt.org/test3/get.php

Attributes
  • extension

    .ssoi

  • offline_id

    dYUDKE4rrBmSPsf8srHMsyP40jle9uyxDDCfdxt1

  • payload_url

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

    http://fuyt.org/files/1/build3.exe

  • ransomnote

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rsa_pubkey.plain

Targets

    • Target
      80CDFC120B7824E7CB5B34FC9AB1B6B43B84DFB435FD8.exe
    • Size 206KB
    • SHA256 80cdfc120b7824e7cb5b34fc9ab1b6b43b84dfb435fd8f3e681ad4ae0ebd41de
    • MD5 SHA1 SHA512
    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

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

    • RedLine Payload

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE GCleaner Downloader Activity M5

      suricata: ET MALWARE GCleaner Downloader Activity M5

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    • suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

      suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

    • suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin M2

      suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin M2

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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 NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks