General

  • Target

    47e32b13dbcb4d3a3a8a8c7c96def550bc38742c24b2a9a0921291bb3ce04684

  • Size

    345KB

  • Sample

    211022-k42azaccdn

  • MD5

    983acfd3fd900843ebcff41ae078db4a

  • SHA1

    f75dd49052750a6df76a0ed95e91b0fbcc37e075

  • SHA256

    47e32b13dbcb4d3a3a8a8c7c96def550bc38742c24b2a9a0921291bb3ce04684

  • SHA512

    894b602d33ca64858765e0643b4597b63eac61e7712c6198a7137a43fa63e275bcbe662167b90d3b01676dac89df19c549e078a8ad20b761ad5a8aa8cad59ed3

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://nusurtal4f.net/

http://netomishnetojuk.net/

http://escalivrouter.net/

http://nick22doom4.net/

http://wrioshtivsio.su/

http://nusotiso4.su/

http://rickkhtovkka.biz/

http://palisotoliso.net/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

BTC-2021

C2

2.56.214.190:59628

Extracted

Family

vidar

Version

41.5

Botnet

706

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    706

Extracted

Family

vidar

Version

41.5

Botnet

517

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    517

Extracted

Family

djvu

C2

http://rlrz.org/lancer

Targets

    • Target

      47e32b13dbcb4d3a3a8a8c7c96def550bc38742c24b2a9a0921291bb3ce04684

    • Size

      345KB

    • MD5

      983acfd3fd900843ebcff41ae078db4a

    • SHA1

      f75dd49052750a6df76a0ed95e91b0fbcc37e075

    • SHA256

      47e32b13dbcb4d3a3a8a8c7c96def550bc38742c24b2a9a0921291bb3ce04684

    • SHA512

      894b602d33ca64858765e0643b4597b63eac61e7712c6198a7137a43fa63e275bcbe662167b90d3b01676dac89df19c549e078a8ad20b761ad5a8aa8cad59ed3

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • 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

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Deletes itself

    • 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.

    • 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

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks