Overview

overview

10

Static

static

1

wps_office_inst.exe

windows10-2004-x64

10

wps_office_inst.exe

windows11-ltsc_2024-x64

7

Sharing

Copy URL Twitter E-mail

General

  • Target
    wps_office_inst.exe
  • Size 5.2MB
  • Sample261007-pmc92ayshv
  • SHA256 05021c627b64f7fc84fcdc4b3ec3e805a8d955c1e09bb854f6afbce8c3028ee7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
privateloaderbootkitdefense_evasiondiscoveryloaderpersistencespywaretrojan

Malware Config

Targets

    • Target
      wps_office_inst.exe
    • Size 5.2MB
    • SHA256 05021c627b64f7fc84fcdc4b3ec3e805a8d955c1e09bb854f6afbce8c3028ee7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    bootkitdefense_evasiondiscoveryprivateloaderloaderpersistencespywaretrojan

    • Family: PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

      loaderprivateloader

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Writes a Windows system DLL name to a user directory

      A module named after a system DLL outside System32 can be loaded instead of the real one by a program searching that directory.

      defense_evasion

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Network Service Discovery

      Attempt to gather information on host's network.

      discovery

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Hijack Execution Flow

1
T1574

DLL Search Order Hijacking

1
T1574.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Hijack Execution Flow

1
T1574

DLL Search Order Hijacking

1
T1574.001

Defense Evasion

Hijack Execution Flow

1
T1574

DLL Search Order Hijacking

1
T1574.001

Masquerading

1
T1036

Match Legitimate Name or Location

1
T1036.005

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Network Service Discovery

1
T1046

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks