General

  • Target

    9a9da7772d6967bff13dec89368a256b58b43b067004cadb8edd866ff25b52db

  • Size

    814KB

  • Sample

    211125-tnhy5afgap

  • MD5

    a2c8ea8b973f5599e1ce5de45ae6d663

  • SHA1

    36b988e54c2b5d90d4b6d1214bcd305e034e1ecb

  • SHA256

    9a9da7772d6967bff13dec89368a256b58b43b067004cadb8edd866ff25b52db

  • SHA512

    94e0b3fb34f9433dc6f344b62979ded26a885f807bb4aa6e3a5c756248a873ab8e386bc079cfa65fc0831e082d324a1afccf5efc8367f72129733f5eb30b25d6

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/fhsgtsspen6/get.php

Attributes
  • extension

    .rigj

  • offline_id

    Z5GGASEfY71jtxU3i3E8kzvrTJmY9oiZkjcSm0t1

  • 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-Tjb0YqckGX 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: 0353gSd743d

rsa_pubkey.plain

Extracted

Family

vidar

Version

48.7

Botnet

517

C2

https://mstdn.social/@anapa

https://mastodon.social/@mniami

Attributes
  • profile_id

    517

Targets

    • Target

      9a9da7772d6967bff13dec89368a256b58b43b067004cadb8edd866ff25b52db

    • Size

      814KB

    • MD5

      a2c8ea8b973f5599e1ce5de45ae6d663

    • SHA1

      36b988e54c2b5d90d4b6d1214bcd305e034e1ecb

    • SHA256

      9a9da7772d6967bff13dec89368a256b58b43b067004cadb8edd866ff25b52db

    • SHA512

      94e0b3fb34f9433dc6f344b62979ded26a885f807bb4aa6e3a5c756248a873ab8e386bc079cfa65fc0831e082d324a1afccf5efc8367f72129733f5eb30b25d6

    • 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

    • 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