Resubmissions

26-11-2022 08:19

221126-j8cmqshd8y 10

26-11-2022 08:05

221126-jy2twagg61 10

General

  • Target

    6261c877c8f815cfd5dcd4f956c9d301ed9f92037a76371a1bb8a19b1c2c36bf

  • Size

    147KB

  • Sample

    221126-j8cmqshd8y

  • MD5

    2d31f14d6e143d099ac6c71876a59e41

  • SHA1

    a0895db8084ddeedd27168d12fb2918cb156d9f7

  • SHA256

    6261c877c8f815cfd5dcd4f956c9d301ed9f92037a76371a1bb8a19b1c2c36bf

  • SHA512

    8eb5ee3965270d3e2bdc99bf4254151d3a678d173b062e8b6cb369a826ee3eb81b6bf3724bbce9ed32ed45e2c8fa8b68dbc468ae1e4bad0074ef658d693934d5

  • SSDEEP

    3072:i9yoLetGVizl65oCZY4y181Bl8P3O8Zi4ylKjUC/hEr09:FZGVyN4TBV4yJCJE8

Malware Config

Extracted

Family

djvu

C2

http://fresherlights.com/lancer/get.php

Attributes
  • extension

    .kcbu

  • offline_id

    hlqzhQ6w5SquNDF4Ul2XBDJQkSIKbAT6rmRBTit1

  • payload_url

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

    http://fresherlights.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-lj5qINGbTc 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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0608Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

55.9

Botnet

517

C2

https://t.me/headshotsonly

https://steamcommunity.com/profiles/76561199436777531

Attributes
  • profile_id

    517

Targets

    • Target

      6261c877c8f815cfd5dcd4f956c9d301ed9f92037a76371a1bb8a19b1c2c36bf

    • Size

      147KB

    • MD5

      2d31f14d6e143d099ac6c71876a59e41

    • SHA1

      a0895db8084ddeedd27168d12fb2918cb156d9f7

    • SHA256

      6261c877c8f815cfd5dcd4f956c9d301ed9f92037a76371a1bb8a19b1c2c36bf

    • SHA512

      8eb5ee3965270d3e2bdc99bf4254151d3a678d173b062e8b6cb369a826ee3eb81b6bf3724bbce9ed32ed45e2c8fa8b68dbc468ae1e4bad0074ef658d693934d5

    • SSDEEP

      3072:i9yoLetGVizl65oCZY4y181Bl8P3O8Zi4ylKjUC/hEr09:FZGVyN4TBV4yJCJE8

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Modifies visibility of file extensions in Explorer

    • Modifies visiblity of hidden/system files in Explorer

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • 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 Microsoft Outlook profiles

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Hidden Files and Directories

2
T1158

Modify Registry

4
T1112

File Permissions Modification

1
T1222

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks