General

  • Target

    46ddfe208b54391ac7f011096fbfb13947d25b323bda841f8bf7dd3bf7a1d48a

  • Size

    9KB

  • Sample

    220427-trpk3sgeek

  • MD5

    504b794b41d48e580ba85fd76bb0044c

  • SHA1

    ce863f2d140eef4f15a47064c31443206a8fe131

  • SHA256

    46ddfe208b54391ac7f011096fbfb13947d25b323bda841f8bf7dd3bf7a1d48a

  • SHA512

    f5e79e52c0c8bca0e95b85e25bf565f955619adf75866b78a1eb541243981d3330c2a6a045c7f4db0685fe436af85ebcac68ee824ffc0d87ec7ccc158e170b2d

Malware Config

Targets

    • Target

      46ddfe208b54391ac7f011096fbfb13947d25b323bda841f8bf7dd3bf7a1d48a

    • Size

      9KB

    • MD5

      504b794b41d48e580ba85fd76bb0044c

    • SHA1

      ce863f2d140eef4f15a47064c31443206a8fe131

    • SHA256

      46ddfe208b54391ac7f011096fbfb13947d25b323bda841f8bf7dd3bf7a1d48a

    • SHA512

      f5e79e52c0c8bca0e95b85e25bf565f955619adf75866b78a1eb541243981d3330c2a6a045c7f4db0685fe436af85ebcac68ee824ffc0d87ec7ccc158e170b2d

    • Modifies WinLogon for persistence

    • Modifies system executable filetype association

    • Drops file in Drivers directory

    • Sets service image path in registry

    • Adds Run key to start application

    • Installs/modifies Browser Helper Object

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

    • Modifies WinLogon

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

Tasks