General

  • Target

    ea3fb71a65369d95aa369993f889bb2d94e86a952c774d3b3dbb6087cd2f5a09

  • Size

    1019KB

  • Sample

    210518-wx8wsj16ba

  • MD5

    a0ce10fd73714f892188c8db55e94573

  • SHA1

    0cce14102ed8334af629601bb5f36650eded1384

  • SHA256

    ea3fb71a65369d95aa369993f889bb2d94e86a952c774d3b3dbb6087cd2f5a09

  • SHA512

    65f886e12e5ef513a6031f0d7f7b982c6ab71a7f0178af56746b7b941086e692a4c678db89307d1f8fee42aecdc4bdcf78de97aac91c66f7a43c388d12710339

Malware Config

Targets

    • Target

      ea3fb71a65369d95aa369993f889bb2d94e86a952c774d3b3dbb6087cd2f5a09

    • Size

      1019KB

    • MD5

      a0ce10fd73714f892188c8db55e94573

    • SHA1

      0cce14102ed8334af629601bb5f36650eded1384

    • SHA256

      ea3fb71a65369d95aa369993f889bb2d94e86a952c774d3b3dbb6087cd2f5a09

    • SHA512

      65f886e12e5ef513a6031f0d7f7b982c6ab71a7f0178af56746b7b941086e692a4c678db89307d1f8fee42aecdc4bdcf78de97aac91c66f7a43c388d12710339

    • Modifies WinLogon for persistence

    • Modifies system executable filetype association

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Drops file in Drivers directory

    • Sets service image path in registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Loads dropped DLL

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Installs/modifies Browser Helper Object

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

    • Modifies WinLogon

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

2
T1004

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

6
T1112

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Tasks