General

  • Target

    08dc6c6bc916f05577694a26c660b9a500e6d72c8c9a863f52440d17b798c2caN

  • Size

    672KB

  • Sample

    241006-ev4f3swhjd

  • MD5

    0cb651bf414b2fc0cef464870ab1e850

  • SHA1

    fc86f69e2554f69b387ceb629decc998720dae85

  • SHA256

    08dc6c6bc916f05577694a26c660b9a500e6d72c8c9a863f52440d17b798c2ca

  • SHA512

    e49d2fc3fe3fe297e18cfea5f66376f0ee116b6fadbf8fa1ecc58248877cbdf2047d636d55940a5bbcb691032aa508bad7e42054d00a4c251dc86f753b5db00c

  • SSDEEP

    12288:cO3CUmFTPWO2YP1SifXtUsn1Fv2RaDlVkvb:73rmAlYNXvtUsORaDIv

Malware Config

Targets

    • Target

      08dc6c6bc916f05577694a26c660b9a500e6d72c8c9a863f52440d17b798c2caN

    • Size

      672KB

    • MD5

      0cb651bf414b2fc0cef464870ab1e850

    • SHA1

      fc86f69e2554f69b387ceb629decc998720dae85

    • SHA256

      08dc6c6bc916f05577694a26c660b9a500e6d72c8c9a863f52440d17b798c2ca

    • SHA512

      e49d2fc3fe3fe297e18cfea5f66376f0ee116b6fadbf8fa1ecc58248877cbdf2047d636d55940a5bbcb691032aa508bad7e42054d00a4c251dc86f753b5db00c

    • SSDEEP

      12288:cO3CUmFTPWO2YP1SifXtUsn1Fv2RaDlVkvb:73rmAlYNXvtUsORaDIv

    • ISR Stealer

      ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

    • ISR Stealer payload

    • Modifies WinLogon for persistence

    • Adds policy Run key to start application

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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

    • Writes to the Master Boot Record (MBR)

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks