General

  • Target

    3cf265845551a33935207f739858ac9c3eee7e0a2cd936f18ff6f72e5bf2c295

  • Size

    336KB

  • Sample

    211029-xemgqsaehj

  • MD5

    d5e5547f06b346c9aac5097047307b60

  • SHA1

    6b23c59472ea37e135844820e7e6a74b770f4750

  • SHA256

    3cf265845551a33935207f739858ac9c3eee7e0a2cd936f18ff6f72e5bf2c295

  • SHA512

    4a1c327a802331ec19caf53a7fd3f9baddb0dd5228385921d652ef43a94f749e5083807c2169933905fe41457d57a5f4faf9d1879ab02a7cfb51f71b68f74ad1

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://brandyjaggers.com/upload/

http://andbal.com/upload/

http://alotofquotes.com/upload/

http://szpnc.cn/upload/

http://uggeboots.com/upload/

http://100klv.com/upload/

http://rapmusic.at/upload/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

41.6

Botnet

1050

C2

https://mas.to/@lilocc

Attributes
  • profile_id

    1050

Targets

    • Target

      3cf265845551a33935207f739858ac9c3eee7e0a2cd936f18ff6f72e5bf2c295

    • Size

      336KB

    • MD5

      d5e5547f06b346c9aac5097047307b60

    • SHA1

      6b23c59472ea37e135844820e7e6a74b770f4750

    • SHA256

      3cf265845551a33935207f739858ac9c3eee7e0a2cd936f18ff6f72e5bf2c295

    • SHA512

      4a1c327a802331ec19caf53a7fd3f9baddb0dd5228385921d652ef43a94f749e5083807c2169933905fe41457d57a5f4faf9d1879ab02a7cfb51f71b68f74ad1

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

MITRE ATT&CK Matrix ATT&CK v6

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

Tasks