General

  • Target

    b986a002d907a2c6083b7e07b992cdb9e592622476840e878e0d9e50b4e8a37d

  • Size

    174KB

  • Sample

    221206-dnfk1ahc48

  • MD5

    3bbb5e709f340f0f6cba6582ac412c4a

  • SHA1

    a81cfeb21bc645d51f2a959ba96e78e1438b5619

  • SHA256

    cb4d0eada687343ec14435e54a646fc6365ec3f39a7c7b10531bbd1e8fb01ca7

  • SHA512

    5a6ed00e2d07a14e123b8509fbf77b9e7d3d88fd6dde0de6f246802bab2a1e707bdf8bdc9003308ab234764c7f94768f7158a8dd9a2265627bad69cb7e5894af

  • SSDEEP

    3072:NVNVwSHBrmHEln17q7qRh/T1VPweskV3IKYD94ZYHMZWgdnvng4rPt:NVPkEl87k/JZwSJFZMMZW8/X

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .mbtf

  • offline_id

    d1BN9KEra4Hetg5GUH0nQZqy14sntD2NbihzGQt1

  • 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-8aIWIsUQt9 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@fishmail.top Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0613Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

56

Botnet

517

C2

https://t.me/asifrazatg

https://steamcommunity.com/profiles/76561199439929669

Attributes
  • profile_id

    517

Targets

    • Target

      b986a002d907a2c6083b7e07b992cdb9e592622476840e878e0d9e50b4e8a37d

    • Size

      272KB

    • MD5

      f66c58e8420f030a9f593b8a2646e83d

    • SHA1

      5ff3aa7c3114f8ecfccd58c0cc91146e19a3b9ea

    • SHA256

      b986a002d907a2c6083b7e07b992cdb9e592622476840e878e0d9e50b4e8a37d

    • SHA512

      421a9b55977bab31c321e2086752fac1a1395decc0b97cb7021ae1fb0448851185d85209453753b37afbded60e78f3c4a1f18902947a68058598f4acdecb4997

    • SSDEEP

      3072:WyXVH4YPixN0DORI4WR5wHmzdq/T1VPweskV3IKFJVhYiVRvJTcpVDYgV2qs64j:WyXDORIOQq/JZwSJ3jYIDcfVS

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • 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.

    • Drops Chrome extension

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

5
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks