Overview

overview

10

Static

static

1

MBSetup.exe

windows11-21h2-x64

10

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General

  • Target

    MBSetup.exe

  • Size

    2.5MB

  • Sample

    240420-p4xp1ahb54

  • MD5

    b6d8b7e6f74196f62caba2ca77a7ae91

  • SHA1

    6ac9c99f084b5772440e2f135b8d5365f7f45314

  • SHA256

    74b0bf9c17091ab1c6c61af0aefbc599f1ecc0fff6dee0144a3dfd5cd1f5e18f

  • SHA512

    ad58bc7b626a13606e3f44df7188b2420e0f31ecb55632eac4b6a05dc1574f1ec1b0ef6b52e11832713c6f8f91c807fe3a815699d0748284993ecc54f2823044

  • SSDEEP

    49152:/5wZat2ranBQjvaq/Gtl8StQyfvE0Z3R0nxiIq2ddBzOnX:/5wZauUBQjvL0SKtQRq2cnX

Score
10/10
bootkitdiscoverypersistencespywarestealer

Malware Config

Targets

    • Target

      MBSetup.exe

    • Size

      2.5MB

    • MD5

      b6d8b7e6f74196f62caba2ca77a7ae91

    • SHA1

      6ac9c99f084b5772440e2f135b8d5365f7f45314

    • SHA256

      74b0bf9c17091ab1c6c61af0aefbc599f1ecc0fff6dee0144a3dfd5cd1f5e18f

    • SHA512

      ad58bc7b626a13606e3f44df7188b2420e0f31ecb55632eac4b6a05dc1574f1ec1b0ef6b52e11832713c6f8f91c807fe3a815699d0748284993ecc54f2823044

    • SSDEEP

      49152:/5wZat2ranBQjvaq/Gtl8StQyfvE0Z3R0nxiIq2ddBzOnX:/5wZauUBQjvL0SKtQRq2cnX

    Score
    10/10
    bootkitdiscoverypersistencespywarestealer

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Sets service image path in registry

      persistence

    • Checks BIOS information in registry

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

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Downloads MZ/PE file

    • Enumerates connected drives

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

    • 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.

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Defense Evasion

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

6
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Lateral Movement

Remote Services

1
T1021

Remote Desktop Protocol

1
T1021.001

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks