General

  • Target

    41ed34b70460e1eb3b561fbc89b65052

  • Size

    567KB

  • Sample

    211026-fvvplshfhq

  • MD5

    41ed34b70460e1eb3b561fbc89b65052

  • SHA1

    a5def1d5bf16265f8a828dd4b1e9c2deede4e3c1

  • SHA256

    22d5d59d54369797b47fb086e329d72d65f98bd679977370ddb24118815f311b

  • SHA512

    03cc6e74afc17bfbc54d9284d84c3b0d33f1d615cd7214aa6fabddb42579e30d9117aeaa88c3e8fdb56a9d6438eb1fdd7c00af9c0ebb730619ee19b6f34dbf60

Malware Config

Extracted

Family

vidar

Version

41.5

Botnet

921

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    921

Targets

    • Target

      41ed34b70460e1eb3b561fbc89b65052

    • Size

      567KB

    • MD5

      41ed34b70460e1eb3b561fbc89b65052

    • SHA1

      a5def1d5bf16265f8a828dd4b1e9c2deede4e3c1

    • SHA256

      22d5d59d54369797b47fb086e329d72d65f98bd679977370ddb24118815f311b

    • SHA512

      03cc6e74afc17bfbc54d9284d84c3b0d33f1d615cd7214aa6fabddb42579e30d9117aeaa88c3e8fdb56a9d6438eb1fdd7c00af9c0ebb730619ee19b6f34dbf60

    • 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

    • 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

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks