Resubmissions

23-01-2022 07:32

220123-jc9mlafda4 10

23-01-2022 07:30

220123-jb8c5sfch9 7

General

  • Target

    360TS_Setup_Mini.exe

  • Size

    1.5MB

  • Sample

    220123-jc9mlafda4

  • MD5

    858ee6ceb590822f57d2d98a32e3c5af

  • SHA1

    0cd9e539e919dd0367c1d04e2644bc3e8ad109e5

  • SHA256

    3d505dd5081824da4517fbdc2a4da8c6133538b72171e260f59d10be5ed20acb

  • SHA512

    ad624bba251a6131471a662e31a676c6facb335aef433b0c2313adb57c2ca4701590845c3c237d190a1817fa43daeaaeb3731c91e19045691523cccf9cbbd198

Malware Config

Targets

    • Target

      360TS_Setup_Mini.exe

    • Size

      1.5MB

    • MD5

      858ee6ceb590822f57d2d98a32e3c5af

    • SHA1

      0cd9e539e919dd0367c1d04e2644bc3e8ad109e5

    • SHA256

      3d505dd5081824da4517fbdc2a4da8c6133538b72171e260f59d10be5ed20acb

    • SHA512

      ad624bba251a6131471a662e31a676c6facb335aef433b0c2313adb57c2ca4701590845c3c237d190a1817fa43daeaaeb3731c91e19045691523cccf9cbbd198

    • Modifies system executable filetype association

    • Registers COM server for autorun

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Modifies boot configuration data using bcdedit

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Installed Components in the registry

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • 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

    • 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

    • 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.

    • Maps connected drives based on registry

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

    • 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

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

4
T1060

Browser Extensions

1
T1176

Bootkit

1
T1067

Defense Evasion

Modify Registry

6
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

7
T1012

System Information Discovery

8
T1082

Security Software Discovery

1
T1063

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

1
T1490

Tasks