Overview

overview

10

Static

static

3

ofx.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    ofx.exe
  • Size 561KB
  • Sample261026-tskzaaxxc1
  • SHA256 077b7dfa09267418c1896cb6ca8bb9212f76918cac7b8ee4699fa06c9b32c969
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target
      ofx.exe
    • Size 561KB
    • SHA256 077b7dfa09267418c1896cb6ca8bb9212f76918cac7b8ee4699fa06c9b32c969
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealertrojan

    • Modifies Windows Defender DisableAntiSpyware settings

      evasiontrojan

    • Modifies Windows Defender Real-time Protection settings

      defense_evasiontrojan

    • Windows security bypass

      defense_evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Enumerates VirtualBox registry keys

      defense_evasion

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (1409) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Disables use of System Restore points

      defense_evasion

    • Looks for VMWare services registry key.

      defense_evasion

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Windows security modification

      defense_evasiontrojan

    • Adds Run key to start application

      persistence

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Direct Volume Access

1
T1006

Impair Defenses

4
T1562

Disable or Modify Tools

4
T1562.001

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

5
T1112

Virtualization/Sandbox Evasion

2
T1497

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

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

System Information Discovery

2
T1082

System Network Configuration Discovery

1
T1016

Virtualization/Sandbox Evasion

2
T1497

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Inhibit System Recovery

5
T1490

Tasks