Overview

overview

10

Static

static

8

accevent.exe

windows10-2004-x64

10

event.dll

windows10-2004-x64

7

event.dll

windows11-ltsc_2024-x64

7

Sharing

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General

  • Target
    税務署からのお知らせ_14.img
  • Size 10.9MB
  • Sample261009-sljl7syvb1
  • SHA256 40199500a7d62e5ffc98a440b0f72b6cc9517202c6e414645478cfc9d2197af8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
donutloaderdefense_evasiondiscoveryloaderpersistenceprivilege_escalationrevoked_codesign

Malware Config

Targets

    • Target
      accevent.exe
    • Size 10.7MB
    • SHA256 5bb9bbca8655ab1b999b5ab702044894cbc1330069696ee89227dd230df57f84
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoverydonutloaderloaderpersistenceprivilege_escalation

    • Detects DonutLoader

      loader

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

      loaderdonutloader

    • Modifies Windows Firewall

      defense_evasion

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

      discovery
    behavioral1
    • Target
      event.dll
    • Size 144KB
    • SHA256 be1aa18cf49205c015b5f5e863593907fbc86a61d138deb37114e1c6b8af419c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    7/10
    defense_evasion

    • Loads dropped DLL

    behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

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

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Direct Volume Access

1
T1006

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks