General

  • Target

    e25d0dafe6f40b5620c8d8edc7584df2b16b52c2b977607263d314ba9b8afe0f

  • Size

    199KB

  • Sample

    210921-l9qbbshbd8

  • MD5

    c096caa1f6363fecd58b62762f54dc79

  • SHA1

    9b2961b17a9fb17f4c4e0663417ec2087c63d6ab

  • SHA256

    e25d0dafe6f40b5620c8d8edc7584df2b16b52c2b977607263d314ba9b8afe0f

  • SHA512

    db533a091a758ee116bdeeceda08793b8641f9b5bc3baed847402395207b8762c8d90f0fd446bca1fa2299d4223addeb27a3c759bc120f158fb6d37da5b7fd96

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

40.8

Botnet

828

C2

https://pavlovoler.tumblr.com/

Attributes
  • profile_id

    828

Targets

    • Target

      e25d0dafe6f40b5620c8d8edc7584df2b16b52c2b977607263d314ba9b8afe0f

    • Size

      199KB

    • MD5

      c096caa1f6363fecd58b62762f54dc79

    • SHA1

      9b2961b17a9fb17f4c4e0663417ec2087c63d6ab

    • SHA256

      e25d0dafe6f40b5620c8d8edc7584df2b16b52c2b977607263d314ba9b8afe0f

    • SHA512

      db533a091a758ee116bdeeceda08793b8641f9b5bc3baed847402395207b8762c8d90f0fd446bca1fa2299d4223addeb27a3c759bc120f158fb6d37da5b7fd96

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

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