Overview

overview

10

Static

static

3

2fe93dbaef...8c.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    2fe93dbaef87972adb197da3f2249d122463e627fcaef1e6752e2dd0e3df228c
  • Size 3.9MB
  • Sample260910-n5c7bawvfv
  • SHA256 2fe93dbaef87972adb197da3f2249d122463e627fcaef1e6752e2dd0e3df228c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
mofksysdefense_evasiondiscoveryexecutionpersistenceprivilege_escalationupxworm

Malware Config

Targets

    • Target
      2fe93dbaef87972adb197da3f2249d122463e627fcaef1e6752e2dd0e3df228c
    • Size 3.9MB
    • SHA256 2fe93dbaef87972adb197da3f2249d122463e627fcaef1e6752e2dd0e3df228c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutionmofksyspersistenceprivilege_escalationupxworm

    • Detects Mofksys worm

    • Family: Mofksys

      Mofksys is a worm written in VisualBasic.

      wormmofksys

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of hidden/system files in Explorer

      defense_evasion

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

      persistence

    • Modifies Windows Firewall

      defense_evasion

    • Sets service image path in registry

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

      persistence

    • Creates new service(s)

      persistenceexecution

    • Executes dropped EXE

    • Loads dropped DLL

    • Stops running service(s)

      defense_evasionexecution

    • Adds Run key to start application

      persistence

    • Executes a VBScript file via the Windows Script Host.

      execution

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

Visual Basic

1
T1059.005

Windows Command Shell

1
T1059.003

System Services

2
T1569

Service Execution

2
T1569.002

Persistence

Boot or Logon Autostart Execution

4
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

4
T1543

Windows Service

4
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

4
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

4
T1543

Windows Service

4
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

5
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1
T1489

Tasks