Resubmissions

18-01-2023 14:08

230118-rfz7bsae22 10

16-12-2022 12:38

221216-pvfecsef97 7

General

  • Target

    BraveBrowserSetup.iso

  • Size

    309.7MB

  • Sample

    221216-pvfecsef97

  • MD5

    3be55cb23c93f2c2dc46d7f7e17a3c2e

  • SHA1

    612573effd7be0ad4e9f9cb3b8235938e3761152

  • SHA256

    0b1a0881946f6e4d8b4af01f6bceb0737fc58282d098ae1c36c25c24c53a7deb

  • SHA512

    10d4236bc5983e194a8e87453457a69853bac491538b340c19913b236f465e468b1ec32f2820b561c1d68856d202ef7b13ce926ed524fe3f499dcd48d87451d4

  • SSDEEP

    24576:Zgo+DDRIgvlC+pKc8zDkfxUXtWjPMBzuxK:25DDRISrxUcjPMBzux

Malware Config

Targets

    • Target

      BraveBrowserSetup.exe

    • Size

      309.1MB

    • MD5

      931195d97525e56b81273de435a1b23a

    • SHA1

      a7b1888845db32aceb0c0d8a98a448e94ac95d0a

    • SHA256

      bd06228669802c5ee2f00c900dd17efd1763780b17f05346d5ddcf6ead24297b

    • SHA512

      c53b492d548f9cbd1f35aff646fe5344b141bf226aa78eb39c05914ff2704fd4cd9c5ed336967354b3311db487f60271374783ef6d485187ea714cd506912792

    • SSDEEP

      24576:jgo+DDRIgvlC+pKc8zDkfxUXtWjPMBzuxK2:M5DDRISrxUcjPMBzuxv

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • 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 v6

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks