General

  • Target

    ad981e5d00421cd6e58e97d02c33ad0891f687a690d669dd29f62d396d572140

  • Size

    2.2MB

  • Sample

    240701-q97mtsvgle

  • MD5

    bf890e77efeb758a0f3c1ab68f3d32e9

  • SHA1

    49df1e22f7a4aa3c8a679f61fab27ffbff826b41

  • SHA256

    ad981e5d00421cd6e58e97d02c33ad0891f687a690d669dd29f62d396d572140

  • SHA512

    0a56768f624d1e72032fc78dff01eae92286215ec87eda62e5528f26321109ea7c0c64811e1ff9209b11cd8aee20404a948cb8782f13199b10b0794395307de7

  • SSDEEP

    24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXP4U2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPf21tuuIeNHYGY0LzjsJxK

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      ad981e5d00421cd6e58e97d02c33ad0891f687a690d669dd29f62d396d572140

    • Size

      2.2MB

    • MD5

      bf890e77efeb758a0f3c1ab68f3d32e9

    • SHA1

      49df1e22f7a4aa3c8a679f61fab27ffbff826b41

    • SHA256

      ad981e5d00421cd6e58e97d02c33ad0891f687a690d669dd29f62d396d572140

    • SHA512

      0a56768f624d1e72032fc78dff01eae92286215ec87eda62e5528f26321109ea7c0c64811e1ff9209b11cd8aee20404a948cb8782f13199b10b0794395307de7

    • SSDEEP

      24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXP4U2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPf21tuuIeNHYGY0LzjsJxK

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks installed software on the system

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks