Overview

overview

10

Static

static

1

Sepsis.vbs

windows10-2004-x64

7

Sepsis.vbs

windows11-21h2-x64

Sharing

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General

  • Target
    Sepsis.vbs
  • Size 9.5MB
  • Sample260506-xmmsgagx8s
  • SHA256 286599e4f82056e1865527f7d3d0e66ee413ceb6e6c4464bb2f9c4d717fce748
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasionpersistencetrojan

Malware Config

Targets

    • Target
      Sepsis.vbs
    • Size 9.5MB
    • SHA256 286599e4f82056e1865527f7d3d0e66ee413ceb6e6c4464bb2f9c4d717fce748
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasionpersistencetrojan

    • Modifies WinLogon for persistence

      persistence

    • UAC bypass

      defense_evasiontrojan

    • Event Triggered Execution: Image File Execution Options Injection

      persistence

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks