General

  • Target

    microsoft-edge-110-0-1587-69.exe

  • Size

    1.5MB

  • Sample

    230326-y1qxqabg9v

  • MD5

    9d538327b08e6e91d98253288bbd776c

  • SHA1

    2cf3d00969d3325fdea9bc08b4c8c6689469535f

  • SHA256

    2009f1915acdf9cc26e509a0df595a6e4e3a8b55d82d2beac9cc0872d6c6bde9

  • SHA512

    6e406d65eff7a48f0123abf70e81cc2d9527400b6103100cc21e72c7e0014f8d7c751dd46090aac9b023ad89917f3208c5f2dfdaa3ea57a1f6384585a6b342ef

  • SSDEEP

    49152:gyf3v/qBUBe7oIlEnkxVB9oJyDXI9mK5D:gyjBELkQI0MD

Malware Config

Targets

    • Target

      microsoft-edge-110-0-1587-69.exe

    • Size

      1.5MB

    • MD5

      9d538327b08e6e91d98253288bbd776c

    • SHA1

      2cf3d00969d3325fdea9bc08b4c8c6689469535f

    • SHA256

      2009f1915acdf9cc26e509a0df595a6e4e3a8b55d82d2beac9cc0872d6c6bde9

    • SHA512

      6e406d65eff7a48f0123abf70e81cc2d9527400b6103100cc21e72c7e0014f8d7c751dd46090aac9b023ad89917f3208c5f2dfdaa3ea57a1f6384585a6b342ef

    • SSDEEP

      49152:gyf3v/qBUBe7oIlEnkxVB9oJyDXI9mK5D:gyjBELkQI0MD

    • Downloads MZ/PE file

    • Modifies Installed Components in the registry

    • Sets file execution options in registry

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Registers COM server for autorun

    • 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.

    • Checks whether UAC is enabled

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

4
T1060

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

7
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Collection

Data from Local System

1
T1005

Tasks