Overview

overview

8

Static

static

1

DOC738.msi

windows10-2004-x64

7

DOC738.msi

windows11-21h2-x64

8

Sharing

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General

  • Target
    87ba02d6a28246bdc6c018a4c292b4bca81fc8688e229b5a65806e63f40b2d77.bin
  • Size 6.2MB
  • Sample260503-xd7fhsaz3m
  • SHA256 87ba02d6a28246bdc6c018a4c292b4bca81fc8688e229b5a65806e63f40b2d77
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
bootkitdiscoveryexecutionpersistenceprivilege_escalationransomware

Malware Config

Targets

    • Target
      DOC738.msi
    • Size 6.4MB
    • SHA256 56b2811e4cc5a939c2fbc6f97f16562608aa641a8b3006214fe6cd9724409100
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    8/10
    discoverypersistenceprivilege_escalationransomwarebootkitexecution

    • Downloads MZ/PE file

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

      persistence

    • Executes dropped EXE

    • Loads dropped DLL

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

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

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Installer Packages

1
T1546.016

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Installer Packages

1
T1546.016

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

System Binary Proxy Execution

1
T1218

Msiexec

1
T1218.007

Credential Access

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

4
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks