General

  • Target

    2e18b2cdc6a29df70212b90e7e313a29e8936176de68884d4cefa3ea1e2c9612

  • Size

    2.0MB

  • Sample

    240522-1gqhyshh24

  • MD5

    cd785fb40bacaa705c37fa4e9d94d4a1

  • SHA1

    02b10e95825f3b591861da5840dda79c47ebdc80

  • SHA256

    2e18b2cdc6a29df70212b90e7e313a29e8936176de68884d4cefa3ea1e2c9612

  • SHA512

    6984864fcbe97f6d5215120624c7e1b95fc20ca845e1792c048c1195c412e09959527081e8afa30923f7ee4f489dd64df4a6352f1701233d5fdf381c86d334b3

  • SSDEEP

    49152:7QzHt472DnJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt5tIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      2e18b2cdc6a29df70212b90e7e313a29e8936176de68884d4cefa3ea1e2c9612

    • Size

      2.0MB

    • MD5

      cd785fb40bacaa705c37fa4e9d94d4a1

    • SHA1

      02b10e95825f3b591861da5840dda79c47ebdc80

    • SHA256

      2e18b2cdc6a29df70212b90e7e313a29e8936176de68884d4cefa3ea1e2c9612

    • SHA512

      6984864fcbe97f6d5215120624c7e1b95fc20ca845e1792c048c1195c412e09959527081e8afa30923f7ee4f489dd64df4a6352f1701233d5fdf381c86d334b3

    • SSDEEP

      49152:7QzHt472DnJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt5tIuoITsdZ

    • 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