General

  • Target

    6df4205a932443c8c94748fdca2dbc7d8179501c10237c605fd7e0ee8b240916

  • Size

    826KB

  • Sample

    211206-krg2kadfcm

  • MD5

    8e613ec03cc1231e7f65e6f47d2d17e0

  • SHA1

    845dbde4066f21067704a90f4078e08207f86125

  • SHA256

    6df4205a932443c8c94748fdca2dbc7d8179501c10237c605fd7e0ee8b240916

  • SHA512

    1f0316c850cfd94aac88bfc1e2d3c5d50bbfd8c8ecb7b89dba577bfb6ada3e01668b0c7b4da0d25a6ab89ea7940f808faa8761446693be0d2b7262b24bff688f

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/lancer/get.php

Attributes
  • extension

    .hgsh

  • offline_id

    gYuqQ5GsAaJom08TivUVhlPzZDKd916x4NcXrWt1

  • payload_url

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

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

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-m8LBBi8x8F Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: manager@mailtemp.ch Reserve e-mail address to contact us: helprestoremanager@airmail.cc Your personal ID: 0358Sigrj

rsa_pubkey.plain

Extracted

Family

vidar

Version

48.9

Botnet

517

C2

https://qoto.org/@mniami

https://noc.social/@menaomi

Attributes
  • profile_id

    517

Targets

    • Target

      6df4205a932443c8c94748fdca2dbc7d8179501c10237c605fd7e0ee8b240916

    • Size

      826KB

    • MD5

      8e613ec03cc1231e7f65e6f47d2d17e0

    • SHA1

      845dbde4066f21067704a90f4078e08207f86125

    • SHA256

      6df4205a932443c8c94748fdca2dbc7d8179501c10237c605fd7e0ee8b240916

    • SHA512

      1f0316c850cfd94aac88bfc1e2d3c5d50bbfd8c8ecb7b89dba577bfb6ada3e01668b0c7b4da0d25a6ab89ea7940f808faa8761446693be0d2b7262b24bff688f

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • 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 Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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 ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks