General

  • Target

    NEAS.NEAS9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01aeexeexe_JC.exe

  • Size

    738KB

  • Sample

    231016-qnzebshb74

  • MD5

    15a8142992786ff28bb79fb2b7d47f6e

  • SHA1

    c5fb299009599c93fef087734e13f1dc195f8ec1

  • SHA256

    9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae

  • SHA512

    aba1c44e1e893364a7e9f0f896d205c24949f77a3d0a64dd7883768a5e3ee43771812fe7ec57dcbc39fd218b643f621f11f7738e0c1be2cd647f353b8b245743

  • SSDEEP

    12288:xcfUbjw1xHxDEfUViMVkqATGFMPZhkBH6Jrrn5/Ywmn/nJuR2ks7S:CfUbjysfUGHcMPZhkBaJrTZYzJuES

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes
  • extension

    .ptrz

  • offline_id

    43WPLl8Cnh3dZoiWhf8tP8Q9CrMBVUL2dwHB2Rt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.com/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-dHFDYXqlkk 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: support@freshmail.top Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0807ASUDr

rsa_pubkey.plain

Extracted

Family

vidar

Version

6

Botnet

d37c48c18c73cc0e155c7e1dfde06db9

C2

https://steamcommunity.com/profiles/76561199560322242

https://t.me/cahalgo

Attributes
  • profile_id_v2

    d37c48c18c73cc0e155c7e1dfde06db9

  • user_agent

    Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0 uacq

Targets

    • Target

      NEAS.NEAS9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01aeexeexe_JC.exe

    • Size

      738KB

    • MD5

      15a8142992786ff28bb79fb2b7d47f6e

    • SHA1

      c5fb299009599c93fef087734e13f1dc195f8ec1

    • SHA256

      9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae

    • SHA512

      aba1c44e1e893364a7e9f0f896d205c24949f77a3d0a64dd7883768a5e3ee43771812fe7ec57dcbc39fd218b643f621f11f7738e0c1be2cd647f353b8b245743

    • SSDEEP

      12288:xcfUbjw1xHxDEfUViMVkqATGFMPZhkBH6Jrrn5/Ywmn/nJuR2ks7S:CfUbjysfUGHcMPZhkBaJrTZYzJuES

    • 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

    • Checks computer location settings

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

    • 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

    • 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 v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

File and Directory Permissions Modification

1
T1222

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks