General

  • Target

    expressvpn_windows_12.43.0.0_release.exe

  • Size

    58.4MB

  • Sample

    230218-zgdnqadd98

  • MD5

    a15d6e20d0107f59af14bfe1bfee8a5a

  • SHA1

    a16c498932a3c2851f255bf355f12076159afba7

  • SHA256

    301ee3fb48efa7dc3d15c8e434b93ae36bd9953d7d62efcc85e054a8720595c7

  • SHA512

    02ed872a21f838422881fb2e6099ee3bb3b5e6c22a9ea4439de54cac0fc1aa7cadbf4f1e601cff50bd300941c529313e844c3547f8b3a5bdd4f7b7f47bb6e21e

  • SSDEEP

    1572864:gDG8e0q6S1HeWXgyzRT//W87ghVzJNUXhhgTO0GsrVRUZUcf8E:KMMi++9XWDX+0rrVRTE

Malware Config

Targets

    • Target

      expressvpn_windows_12.43.0.0_release.exe

    • Size

      58.4MB

    • MD5

      a15d6e20d0107f59af14bfe1bfee8a5a

    • SHA1

      a16c498932a3c2851f255bf355f12076159afba7

    • SHA256

      301ee3fb48efa7dc3d15c8e434b93ae36bd9953d7d62efcc85e054a8720595c7

    • SHA512

      02ed872a21f838422881fb2e6099ee3bb3b5e6c22a9ea4439de54cac0fc1aa7cadbf4f1e601cff50bd300941c529313e844c3547f8b3a5bdd4f7b7f47bb6e21e

    • SSDEEP

      1572864:gDG8e0q6S1HeWXgyzRT//W87ghVzJNUXhhgTO0GsrVRUZUcf8E:KMMi++9XWDX+0rrVRTE

    • RevengeRAT

      Remote-access trojan with a wide range of capabilities.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • RevengeRat Executable

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Enumerates connected drives

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

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Discovery

Query Registry

5
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Tasks