Resubmissions

31/10/2024, 13:24

241031-qnlhgaygqb 1

31/10/2024, 12:45

241031-pzblzaxjbv 8

General

  • Target

    7zip-64-19.0.0.0.0-installer_bR-fcS1.exe

  • Size

    1.7MB

  • Sample

    241031-pzblzaxjbv

  • MD5

    a06d58ffbdf021a5c261659cb163a5a3

  • SHA1

    f963fdb4133ec276889cfabaed0135dba276f84a

  • SHA256

    628065ea1095a53fb97689cbdef0b41ceb76cc4e898a1fb981ef4ca64303636c

  • SHA512

    db9b1924e829d4e3f6547cb63718f30bdfb9267a42e460da22b25a43258028c085dd85e32ac12afc268bb46c3240d070d8d300a22dd8780d8cd03ddd9f2df48c

  • SSDEEP

    49152:1BuZrEUrJovPJK9VMX1S7TlYQhzjvWjzs:TkLGk9CX1S7Xpj+jg

Malware Config

Targets

    • Target

      7zip-64-19.0.0.0.0-installer_bR-fcS1.exe

    • Size

      1.7MB

    • MD5

      a06d58ffbdf021a5c261659cb163a5a3

    • SHA1

      f963fdb4133ec276889cfabaed0135dba276f84a

    • SHA256

      628065ea1095a53fb97689cbdef0b41ceb76cc4e898a1fb981ef4ca64303636c

    • SHA512

      db9b1924e829d4e3f6547cb63718f30bdfb9267a42e460da22b25a43258028c085dd85e32ac12afc268bb46c3240d070d8d300a22dd8780d8cd03ddd9f2df48c

    • SSDEEP

      49152:1BuZrEUrJovPJK9VMX1S7TlYQhzjvWjzs:TkLGk9CX1S7Xpj+jg

    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

    • Sets service image path in registry

    • Impair Defenses: Safe Mode Boot

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Downloads MZ/PE file

    • 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.

    • Checks computer location settings

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

    • Drops file in System32 directory

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

MITRE ATT&CK Enterprise v15

Tasks