General

  • Target

    2817dc80c12c2de9e54e636d03bb3ed04affbf5a67983fd11c70670a5ad7b2b7

  • Size

    1.6MB

  • Sample

    240612-eyj7ls1blj

  • MD5

    a85f8b0cc2b15850606670c61739a3ad

  • SHA1

    889ba141de2c4c09c00d3482c97b1f54f0d6d332

  • SHA256

    2817dc80c12c2de9e54e636d03bb3ed04affbf5a67983fd11c70670a5ad7b2b7

  • SHA512

    4b91dd7ff9c83607881ed518c8e6663f32e8391ca9d80f1c2daeb0b635d2e7d3c55b31055904317d9632f19d02541d2df375361123815ee537b8c6fad60a9c89

  • SSDEEP

    24576:spM5863IGfTAVpalBNUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BNUkxVVChjHZQs

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      2817dc80c12c2de9e54e636d03bb3ed04affbf5a67983fd11c70670a5ad7b2b7

    • Size

      1.6MB

    • MD5

      a85f8b0cc2b15850606670c61739a3ad

    • SHA1

      889ba141de2c4c09c00d3482c97b1f54f0d6d332

    • SHA256

      2817dc80c12c2de9e54e636d03bb3ed04affbf5a67983fd11c70670a5ad7b2b7

    • SHA512

      4b91dd7ff9c83607881ed518c8e6663f32e8391ca9d80f1c2daeb0b635d2e7d3c55b31055904317d9632f19d02541d2df375361123815ee537b8c6fad60a9c89

    • SSDEEP

      24576:spM5863IGfTAVpalBNUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BNUkxVVChjHZQs

    • 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

    • 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.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks