Overview

overview

10

Static

static

3

MecchaTrai...on.exe

windows10-ltsc_2021-x64

10

$PLUGINSDI...ls.dll

windows10-ltsc_2021-x64

3

$PLUGINSDI...em.dll

windows10-ltsc_2021-x64

3

Installer.exe

windows10-ltsc_2021-x64

10

LICENSES.c...m.html

windows10-ltsc_2021-x64

3

d3dcompiler_47.dll

windows10-ltsc_2021-x64

1

ffmpeg.dll

windows10-ltsc_2021-x64

1

libEGL.dll

windows10-ltsc_2021-x64

1

libGLESv2.dll

windows10-ltsc_2021-x64

1

resources/app/main.js

windows10-ltsc_2021-x64

3

resources/elevate.exe

windows10-ltsc_2021-x64

3

vk_swiftshader.dll

windows10-ltsc_2021-x64

1

vulkan-1.dll

windows10-ltsc_2021-x64

1

$PLUGINSDI...7z.dll

windows10-ltsc_2021-x64

3

Resubmissions

19/07/2026, 09:44

260719-lqm2vsbv2t10

19/07/2026, 09:38

260719-ll1r6abt3w10

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General

  • Target
    MecchaTrainer_LatestVersion.exe
  • Size 76.5MB
  • Sample260719-lqm2vsbv2t
  • SHA256 e95e9289a5f74956e51ae28dff6069e3ac0ba212b3358c07bc44326472f5eab0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
donutloaderdefense_evasiondiscoveryexecutionloaderpersistencespywarestealertrojan

Malware Config

Targets

    • Target
      MecchaTrainer_LatestVersion.exe
    • Size 76.5MB
    • SHA256 e95e9289a5f74956e51ae28dff6069e3ac0ba212b3358c07bc44326472f5eab0
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutiondonutloaderloaderpersistencespywarestealertrojan

    • 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

    • Windows security bypass

      defense_evasiontrojan

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Prevents Microsoft Defender from scanning certain paths by adding an exclusion.

      Uses the Powershell Add-MpPreference cmdlet to exclude paths from being scanned by Microsoft Defender.

      defense_evasion

    • Reads user/profile data of web browsers

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

      spywarestealer

    • System Binary Proxy Execution: Rundll32

      Abuse Rundll32 to proxy execution of malicious code.

      defense_evasion

    • Adds Run key to start application

      persistence

    • Hide Artifacts: Hidden Window

      Windows that would typically be displayed when an application carries out an operation can be hidden.

      defense_evasion

    • Looks up external IP address via web service

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

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

      defense_evasion

    • Executes a VBScript file via the Windows Script Host.

      execution

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1
    • Target
      $PLUGINSDIR/StdUtils.dll
    • Size 100KB
    • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral2
    • Target
      $PLUGINSDIR/System.dll
    • Size 12KB
    • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral3
    • Target
      Installer.exe
    • Size 168.1MB
    • SHA256 f1fdb3e045eff53d860bb757980dd194b392910fc8a9b640bae912388cda9c4c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutiondonutloaderloaderpersistencespywarestealertrojan

    • 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

    • Windows security bypass

      defense_evasiontrojan

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Prevents Microsoft Defender from scanning certain paths by adding an exclusion.

      Uses the Powershell Add-MpPreference cmdlet to exclude paths from being scanned by Microsoft Defender.

      defense_evasion

    • Reads user/profile data of web browsers

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

      spywarestealer

    • System Binary Proxy Execution: Rundll32

      Abuse Rundll32 to proxy execution of malicious code.

      defense_evasion

    • Adds Run key to start application

      persistence

    • Hide Artifacts: Hidden Window

      Windows that would typically be displayed when an application carries out an operation can be hidden.

      defense_evasion

    • Looks up external IP address via web service

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

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

      defense_evasion

    • Executes a VBScript file via the Windows Script Host.

      execution

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral4
    • Target
      LICENSES.chromium.html
    • Size 8.7MB
    • SHA256 ad35e72893910d6f6ed20f4916457417af05b94ab5204c435c35f66a058d156b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral5
    • Target
      d3dcompiler_47.dll
    • Size 4.7MB
    • SHA256 7353f25dc5cf84d09894e3e0461cef0e56799adbc617fce37620ca67240b547d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral6
    • Target
      ffmpeg.dll
    • Size 2.7MB
    • SHA256 11daf2bf89a3ac660533b3e487e0624668b35f45d2bd94e9b0324bce8758de60
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral7
    • Target
      libEGL.dll
    • Size 468KB
    • SHA256 a4336a318e8d92a47843d5fe429dc6d1ff7271d8bac189d719bc8074a128fd6e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral8
    • Target
      libGLESv2.dll
    • Size 7.3MB
    • SHA256 7b0baa9e2e731716efe3e0bebf6a0bcd2d64f35d9f62b20d23acb4e098c9be36
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral9
    • Target
      resources/app/main.js
    • Size 140KB
    • SHA256 37f77c035e99368bfd4131aa3a641caded376affd7f535f9bb0f8667f95f41f4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    execution
    behavioral10
    • Target
      resources/elevate.exe
    • Size 105KB
    • SHA256 9b1fbf0c11c520ae714af8aa9af12cfd48503eedecd7398d8992ee94d1b4dc37
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral11
    • Target
      vk_swiftshader.dll
    • Size 5.1MB
    • SHA256 46afb1ed7ab1b1a679e00784b2e78cc2358cec615553699624ff77882f55787b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral12
    • Target
      vulkan-1.dll
    • Size 932KB
    • SHA256 fa6b4e20eb448746e2eff9a7fde7a62585e371f3497a6a928eade0a8ce8c1a9f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral13
    • Target
      $PLUGINSDIR/nsis7z.dll
    • Size 424KB
    • SHA256 b393f05e8ff919ef071181050e1873c9a776e1a0ae8329aefff7007d0cadf592
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral14

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

5
T1059

JavaScript

1
T1059.007

PowerShell

2
T1059.001

Visual Basic

1
T1059.005

Windows Command Shell

1
T1059.003

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Hide Artifacts

3
T1564

File/Path Exclusions

1
T1564.012

Hidden Window

1
T1564.003

Ignore Process Interrupts

1
T1564.011

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Modify Registry

2
T1112

Obfuscated Files or Information

1
T1027

Command Obfuscation

1
T1027.010

System Binary Proxy Execution

1
T1218

Rundll32

1
T1218.011

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

Query Registry

3
T1012

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks