General

  • Target

    029663a0f3d9f499dbece8f37fe310c80a45735c36408d8aeff82e37f8fcb8ba

  • Size

    2.0MB

  • Sample

    240525-fbyl6aeg5z

  • MD5

    c247503adc1a9dd3c039ef7a6b66e314

  • SHA1

    16c707f680cf749d08cd4d61acb7f66cbba49e19

  • SHA256

    029663a0f3d9f499dbece8f37fe310c80a45735c36408d8aeff82e37f8fcb8ba

  • SHA512

    08fd6401b2171791f3c45759ae876fc80a4766b29cf7c30becc571e05647d4a58647aaf1e2f79e165094509519ed43fe82f4c6885a637fd628aac690110997da

  • SSDEEP

    49152:s4K3x1vUuJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18utIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

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

Targets

    • Target

      029663a0f3d9f499dbece8f37fe310c80a45735c36408d8aeff82e37f8fcb8ba

    • Size

      2.0MB

    • MD5

      c247503adc1a9dd3c039ef7a6b66e314

    • SHA1

      16c707f680cf749d08cd4d61acb7f66cbba49e19

    • SHA256

      029663a0f3d9f499dbece8f37fe310c80a45735c36408d8aeff82e37f8fcb8ba

    • SHA512

      08fd6401b2171791f3c45759ae876fc80a4766b29cf7c30becc571e05647d4a58647aaf1e2f79e165094509519ed43fe82f4c6885a637fd628aac690110997da

    • SSDEEP

      49152:s4K3x1vUuJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18utIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks