Overview

overview

10

Static

static

3

appinstall...00.msi

windows10-2004-x64

9

appinstall...00.msi

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    appinstall.88tt000.zip
  • Size 9.3MB
  • Sample260716-w1827aa13p
  • SHA256 1f154d1899f5414cb5919b3f3f18f2ca2f9d5e95975ef5ccb62ab8a880da8fe9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryexecutionexploitpersistenceprivilege_escalationransomwaretrojan

Malware Config

Targets

    • Target
      appinstall.88tt000.msi
    • Size 9.5MB
    • SHA256 b3bb465f028320d1cc8976d0c56261817aabbbb66310ae7d2d4db1ae55c6316a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasionpersistenceprivilege_escalationransomwarediscoveryexecutionexploittrojan

    • UAC bypass

      defense_evasiontrojan

    • Windows security bypass

      defense_evasiontrojan

    • Looks for VirtualBox Guest Additions in registry

      defense_evasion

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Drops file in Drivers directory

    • Looks for VMWare Tools registry key

      defense_evasion

    • Possible privilege escalation attempt

      exploit

    • Disables service(s)

      defense_evasionexecution

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • Badlisted process makes network request

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

    • Enumerates connected drives

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

    • Indicator Removal: Clear Persistence

      Clear artifacts associated with previously established persistence like scheduletasks on a host.

      defense_evasion

    • 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

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

System Services

1
T1569

Service Execution

1
T1569.002

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

Installer Packages

1
T1546.016

Screensaver

1
T1546.002

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

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

Installer Packages

1
T1546.016

Screensaver

1
T1546.002

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

File and Directory Permissions Modification

1
T1222

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Indicator Removal

1
T1070

Clear Persistence

1
T1070.009

Modify Registry

4
T1112

System Binary Proxy Execution

1
T1218

Msiexec

1
T1218.007

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

5
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Virtualization/Sandbox Evasion

2
T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1
T1489

Tasks