Resubmissions

01-04-2023 01:08

230401-bhrd7sgc4t 8

01-04-2023 01:03

230401-bevmfsgc2x 1

General

  • Target

    https://download2445.mediafire.com/6rlnm3nvtzlgFQ9GDAMCiVq2jqDNUODSMgLGy-H77jMWJ2-TKAsa_urHRFK0tqiCXpPVjRTivE8td5rKuCHHNRj865I/f0r4zg42w9lvltk/BANDICAM.7z

  • Sample

    230401-bhrd7sgc4t

Malware Config

Targets

    • Target

      https://download2445.mediafire.com/6rlnm3nvtzlgFQ9GDAMCiVq2jqDNUODSMgLGy-H77jMWJ2-TKAsa_urHRFK0tqiCXpPVjRTivE8td5rKuCHHNRj865I/f0r4zg42w9lvltk/BANDICAM.7z

    • 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

    • Modifies system executable filetype association

    • 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

    • Drops desktop.ini file(s)

    • 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.

    • Checks system information in the registry

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

4
T1060

Change Default File Association

1
T1042

Browser Extensions

1
T1176

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

7
T1112

Discovery

Query Registry

7
T1012

System Information Discovery

7
T1082

Peripheral Device Discovery

2
T1120

Tasks