Resubmissions

18-09-2023 14:35

230918-ryfkmshh5w 5

18-09-2023 13:32

230918-qs772abh65 10

18-09-2023 13:30

230918-qsalrsbh58 1

18-09-2023 12:41

230918-pw13fsbf72 6

General

  • Target

    http://www.google.com

  • Sample

    230918-qs772abh65

Malware Config

Targets

    • Bazar Loader

      Detected loader normally used to deploy BazarBackdoor malware.

    • Bazar/Team9 Loader payload

    • 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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Registers COM server for autorun

    • 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

    • 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 NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

3
T1547.001

Browser Extensions

1
T1176

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

3
T1547.001

Defense Evasion

Modify Registry

6
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

6
T1012

System Information Discovery

6
T1082

Collection

Data from Local System

1
T1005

Tasks