General

  • Target

    83e0266fe0d2c0e8850cb23eac6705f0539af57c10c6016797d1e34359bd2634

  • Size

    715KB

  • Sample

    211014-sd9tesaffr

  • MD5

    4ac1ae6af435ece0906c585c935b79ef

  • SHA1

    eba2600d6da06563f7241c5c9e419ab7b10e5933

  • SHA256

    83e0266fe0d2c0e8850cb23eac6705f0539af57c10c6016797d1e34359bd2634

  • SHA512

    9835a23cbfb80ae38bcfd575e3472ff8aba073cf0829e1b1ccf4d2490716d57dbed14873fdd72910f2c092e1b1673a23e458499559fff37515de75f3abc2d2a8

Malware Config

Extracted

Family

vidar

Version

41.3

Botnet

1008

C2

https://mas.to/@oleg98

Attributes
  • profile_id

    1008

Targets

    • Target

      83e0266fe0d2c0e8850cb23eac6705f0539af57c10c6016797d1e34359bd2634

    • Size

      715KB

    • MD5

      4ac1ae6af435ece0906c585c935b79ef

    • SHA1

      eba2600d6da06563f7241c5c9e419ab7b10e5933

    • SHA256

      83e0266fe0d2c0e8850cb23eac6705f0539af57c10c6016797d1e34359bd2634

    • SHA512

      9835a23cbfb80ae38bcfd575e3472ff8aba073cf0829e1b1ccf4d2490716d57dbed14873fdd72910f2c092e1b1673a23e458499559fff37515de75f3abc2d2a8

    • 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

    • 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