General

  • Target

    8dcd4d9b5427a160020e80fdc40affbc43c94a681a263e777faf0a036455c14d

  • Size

    12.1MB

  • Sample

    220524-bcv57sedal

  • MD5

    a16d9ab556f1b45893c132c36ca4c655

  • SHA1

    d15355bcc87d81cfe4ffba318f605131e57f82e6

  • SHA256

    8dcd4d9b5427a160020e80fdc40affbc43c94a681a263e777faf0a036455c14d

  • SHA512

    1dcece48c6d66cde4c0543187afb832b204ade3fb95dcc82175dc9ebf355ffda89cbf7e60f760fa3abc3fee8837eb890f9a20386174ad8741c95af1512ca7143

Malware Config

Targets

    • Target

      8dcd4d9b5427a160020e80fdc40affbc43c94a681a263e777faf0a036455c14d

    • Size

      12.1MB

    • MD5

      a16d9ab556f1b45893c132c36ca4c655

    • SHA1

      d15355bcc87d81cfe4ffba318f605131e57f82e6

    • SHA256

      8dcd4d9b5427a160020e80fdc40affbc43c94a681a263e777faf0a036455c14d

    • SHA512

      1dcece48c6d66cde4c0543187afb832b204ade3fb95dcc82175dc9ebf355ffda89cbf7e60f760fa3abc3fee8837eb890f9a20386174ad8741c95af1512ca7143

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Defense Evasion

Modify Registry

3
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

4
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

4
T1082

Collection

Data from Local System

1
T1005

Tasks