General

  • Target

    kaspersky4win202121.9.6.465es_37946 (1).exe

  • Size

    3.8MB

  • Sample

    230406-xle18sgf2w

  • MD5

    c1bb10b033eaec8ec8046e201959cd8d

  • SHA1

    182b62bc1a3cb1ac25d4619ac044223a8a2f281d

  • SHA256

    0ad87a1b2a2d6798f5cbb0601920136237ba9d03720f96290130b3f1db0e43eb

  • SHA512

    5163d8e89acdd97135504fc31ad72a01fbf10685a320fdd3288b8f21a7641ea15279366561c663f53d946944ebb65ec0019721cba4dc960cfff2321dadd2c768

  • SSDEEP

    98304:gQFKOopJ9QennbKgb/LcPOc/KmCPOHxFvSeVEQaJU7pByrcGw:TopfQenzbDcGc2mfJtm

Malware Config

Targets

    • Target

      kaspersky4win202121.9.6.465es_37946 (1).exe

    • Size

      3.8MB

    • MD5

      c1bb10b033eaec8ec8046e201959cd8d

    • SHA1

      182b62bc1a3cb1ac25d4619ac044223a8a2f281d

    • SHA256

      0ad87a1b2a2d6798f5cbb0601920136237ba9d03720f96290130b3f1db0e43eb

    • SHA512

      5163d8e89acdd97135504fc31ad72a01fbf10685a320fdd3288b8f21a7641ea15279366561c663f53d946944ebb65ec0019721cba4dc960cfff2321dadd2c768

    • SSDEEP

      98304:gQFKOopJ9QennbKgb/LcPOc/KmCPOHxFvSeVEQaJU7pByrcGw:TopfQenzbDcGc2mfJtm

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Sets service image path 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

    • Windows security modification

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • 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

    • 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.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

3
T1060

Bootkit

1
T1067

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

1
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

6
T1012

System Information Discovery

7
T1082

Security Software Discovery

1
T1063

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks