General

  • Target

    8d02aba85dbe16fcc1c5886993e4a6525d139bd145bec3da280bc9da1e6e8114

  • Size

    2.0MB

  • Sample

    240524-3hzt5afa3w

  • MD5

    726465fbd89c43332cf980cbe6265f27

  • SHA1

    f607b52c2bb6cc2544be1d8ee7583be942379136

  • SHA256

    8d02aba85dbe16fcc1c5886993e4a6525d139bd145bec3da280bc9da1e6e8114

  • SHA512

    066e57ea30c118e0052661dbd7f8bfcc70b5649dc04772993bc05d7547088fbf691194dc3a7f20ec3b792e5ca7797d781a12436fd14ed7e4c09a3170c30fe01b

  • SSDEEP

    49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ

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

      8d02aba85dbe16fcc1c5886993e4a6525d139bd145bec3da280bc9da1e6e8114

    • Size

      2.0MB

    • MD5

      726465fbd89c43332cf980cbe6265f27

    • SHA1

      f607b52c2bb6cc2544be1d8ee7583be942379136

    • SHA256

      8d02aba85dbe16fcc1c5886993e4a6525d139bd145bec3da280bc9da1e6e8114

    • SHA512

      066e57ea30c118e0052661dbd7f8bfcc70b5649dc04772993bc05d7547088fbf691194dc3a7f20ec3b792e5ca7797d781a12436fd14ed7e4c09a3170c30fe01b

    • SSDEEP

      49152:s4K3x1vU+JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18+tIuoITsdZ

    • 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 local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks