Overview

overview

10

Static

static

1

MBSetup-3.3.exe

windows10-2004-x64

10

MBSetup-3.3.exe

windows10-ltsc_2021-x64

8

MBSetup-3.3.exe

windows11-21h2-x64

8

Sharing

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General

  • Target
    MBSetup-3.3.exe
  • Size 2.7MB
  • Sample260623-dbgbrshz2n
  • SHA256 572113257475dacd1cc957ba7b00a4ec44649d6164ea2e43556f693fe7c34721
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaregoogledefense_evasiondiscoverypersistencephishingprivilege_escalationspywarestealertrojan

Malware Config

Targets

    • Target
      MBSetup-3.3.exe
    • Size 2.7MB
    • SHA256 572113257475dacd1cc957ba7b00a4ec44649d6164ea2e43556f693fe7c34721
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    adwaregoogledefense_evasiondiscoverypersistencephishingprivilege_escalationspywarestealertrojan

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Patched UPX-packed file

      Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

    • Sets service image path in registry

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

      persistence

    • Checks BIOS information in registry

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

    • Impair Defenses: Safe Mode Boot

      defense_evasion

    • Downloads MZ/PE file

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Checks computer location settings

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

    • ConfuserEx .NET packer

      Detects ConfuserEx .NET packer.

    • Detected potential entity reuse from brand GOOGLE.

      phishinggoogle

    • Drops file in System32 directory

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation
    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

2
T1546

Component Object Model Hijacking

1
T1546.015

Netsh Helper DLL

1
T1546.007

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

2
T1546

Component Object Model Hijacking

1
T1546.015

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Safe Mode Boot

1
T1562.009

Modify Registry

3
T1112

Subvert Trust Controls

2
T1553

Install Root Certificate

2
T1553.004

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

7
T1012

System Information Discovery

7
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Remote Services

1
T1021

Remote Desktop Protocol

1
T1021.001

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks