General

  • Target

    https://www.nirsoft.net/utils/advanced_run.html

  • Sample

    230401-mzd1zsah7w

Score
7/10

Malware Config

Targets

    • Target

      https://www.nirsoft.net/utils/advanced_run.html

    Score
    7/10
    • Checks computer location settings

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

    • Executes dropped EXE

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Command and Control

Web Service

1
T1102

Tasks