General

  • Target

    32f078fc533c467118c859bc3528c684.exe

  • Size

    688KB

  • Sample

    220927-pxb5qaefam

  • MD5

    32f078fc533c467118c859bc3528c684

  • SHA1

    54d1ec4a661e374661f04c2db29e1736dac62ff8

  • SHA256

    6327b5468d18ba40465846c7a08d8560f2fd1b0994ccb9aca821bb79306d6748

  • SHA512

    90c89fa7fa378c8c998628f66c2c5585d55a2a8633cff87535ba318e428f6afe38e75b6032bd80eea5d2cf7b2db6df6de0d16eb53fa990b83d34ee7861e8c1a0

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
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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

Targets

    • Target

      32f078fc533c467118c859bc3528c684.exe

    • Size

      688KB

    • MD5

      32f078fc533c467118c859bc3528c684

    • SHA1

      54d1ec4a661e374661f04c2db29e1736dac62ff8

    • SHA256

      6327b5468d18ba40465846c7a08d8560f2fd1b0994ccb9aca821bb79306d6748

    • SHA512

      90c89fa7fa378c8c998628f66c2c5585d55a2a8633cff87535ba318e428f6afe38e75b6032bd80eea5d2cf7b2db6df6de0d16eb53fa990b83d34ee7861e8c1a0

    • 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

    • 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 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

Command and Control

    Credential Access

    Execution

      Exfiltration

        Impact

          Initial Access

            Lateral Movement

              Privilege Escalation