Overview

overview

7

Static

static

3

Phosgene.exe

windows10-ltsc_2021-x64

7

Phosgene.exe

windows11-ltsc_2024-x64

7

Phosgene.exe

macos-10.15-amd64

1

Resubmissions

10/08/2026, 12:19

260810-phay4sgr9z

10/08/2026, 12:10

260810-pb8a2agq9w7

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General

  • Target
    Phosgene.exe
  • Size 22.5MB
  • Sample260810-pb8a2agq9w
  • SHA256 f1006c06d7ffd4f8236c3a95f857dcb148759872aefaeca14c0982a0037618e9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
bootkitdefense_evasiondiscoveryexecutionmacospersistence

Malware Config

Targets

    • Target
      Phosgene.exe
    • Size 22.5MB
    • SHA256 f1006c06d7ffd4f8236c3a95f857dcb148759872aefaeca14c0982a0037618e9
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    7/10
    bootkitdefense_evasiondiscoveryexecutionpersistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Writes to the Master Boot Record (MBR)

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

      bootkitpersistence

    • Executes a VBScript file via the Windows Script Host.

      execution
    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Visual Basic

1
T1059.005

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks