General

  • Target

    c0592e43d0c78dc6e28893bdf8095dbbb1df8c88ceaae3a67accc6ba33cbf304

  • Size

    303KB

  • Sample

    221122-v3lh8sbd63

  • MD5

    aa6cc702008759077d3c1822fd115671

  • SHA1

    f2f8a60909161ed4d7c3f8aeb1e8e0da6c98dcec

  • SHA256

    c0592e43d0c78dc6e28893bdf8095dbbb1df8c88ceaae3a67accc6ba33cbf304

  • SHA512

    bd9ef0da185c20c7fe5a8c5179dd4f7296e7950d88fd02338c14472848970005081682f46bc83cf916fb9d6b492d01a3623709d2d3c37c632fd5fd7bc18c9d82

  • SSDEEP

    6144:r5Q/Q/gfQeGnKudKH4AxKcu5nml422tThsIeGjY6u:yo/gfQeGnZCrxKcu5nv22ZVEX

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tcbu

  • offline_id

    JBPpFMvWlKMsKlJRmPJl5e09RSnYrRJya1oX8xt1

  • payload_url

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

    http://fresherlights.com/files/1/build3.exe

  • ransomnote

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rsa_pubkey.plain

Extracted

Family

vidar

Version

55.8

Botnet

517

C2

https://t.me/headshotsonly

https://steamcommunity.com/profiles/76561199436777531

Attributes
  • profile_id

    517

Extracted

Family

amadey

Version

3.50

C2

193.56.146.174/g84kvj4jck/index.php

Targets

    • Target

      c0592e43d0c78dc6e28893bdf8095dbbb1df8c88ceaae3a67accc6ba33cbf304

    • Size

      303KB

    • MD5

      aa6cc702008759077d3c1822fd115671

    • SHA1

      f2f8a60909161ed4d7c3f8aeb1e8e0da6c98dcec

    • SHA256

      c0592e43d0c78dc6e28893bdf8095dbbb1df8c88ceaae3a67accc6ba33cbf304

    • SHA512

      bd9ef0da185c20c7fe5a8c5179dd4f7296e7950d88fd02338c14472848970005081682f46bc83cf916fb9d6b492d01a3623709d2d3c37c632fd5fd7bc18c9d82

    • SSDEEP

      6144:r5Q/Q/gfQeGnKudKH4AxKcu5nml422tThsIeGjY6u:yo/gfQeGnZCrxKcu5nv22ZVEX

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • 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

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • 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

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

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks