General

  • Target

    5ecb6a62e17b6d04cca7529f54d14d141eaca12208644fc8f46b7dd03f6ee338

  • Size

    468KB

  • Sample

    221124-avklrafd44

  • MD5

    33d5ef899e3bf3c5c42e73fc0f977e10

  • SHA1

    4863effc611d504973cce0f4496b8dacb4698dd6

  • SHA256

    5ecb6a62e17b6d04cca7529f54d14d141eaca12208644fc8f46b7dd03f6ee338

  • SHA512

    950cbc5ab551b0f89f1b111e80f83076183d109c42eb406a5f09effecc17c632e4504a15c3ee69bf7d1385ef868a43d696b1cf698dd39f8ed951de4953e84c9b

  • SSDEEP

    3072:NkAbf2HinaSzVuSMvOPiXUVMujkBH5wvK8K0yd9KbYkNNno9:j2HhIVuLAiSMzvshK0yWb9Nu

Malware Config

Targets

    • Target

      5ecb6a62e17b6d04cca7529f54d14d141eaca12208644fc8f46b7dd03f6ee338

    • Size

      468KB

    • MD5

      33d5ef899e3bf3c5c42e73fc0f977e10

    • SHA1

      4863effc611d504973cce0f4496b8dacb4698dd6

    • SHA256

      5ecb6a62e17b6d04cca7529f54d14d141eaca12208644fc8f46b7dd03f6ee338

    • SHA512

      950cbc5ab551b0f89f1b111e80f83076183d109c42eb406a5f09effecc17c632e4504a15c3ee69bf7d1385ef868a43d696b1cf698dd39f8ed951de4953e84c9b

    • SSDEEP

      3072:NkAbf2HinaSzVuSMvOPiXUVMujkBH5wvK8K0yd9KbYkNNno9:j2HhIVuLAiSMzvshK0yWb9Nu

    • Modifies WinLogon for persistence

    • Modifies visibility of file extensions in Explorer

    • Modifies visiblity of hidden/system files in Explorer

    • Disables RegEdit via registry modification

    • Executes dropped EXE

    • Sets file execution options in registry

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • 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

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

5
T1112

Hidden Files and Directories

2
T1158

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Tasks