SUSPICIOUS — SDL3.dll

SUSPICIOUS — SDL3.dll is a pe sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (61/100), attributed to the HUILoader family. 4 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 132e7f953951944f7628861227ecaea8c37a5a484f004c2072b7f3a1c343fa73
• SHA-1: 1273397d89c9e9c85caf6f93b8ac106cab1628b6
• MD5: 53bf4991a5e4e64ddd6605327a5ef027
• imphash: 44d98479808e7bef84ddf1afdf193ef4
• ssdeep: 49152:knfxEa//+vdfmu55vTryOGapcyKUoVxK2nAYRUzrny6EC:kfxEa//cvTkH
• TLSH: T1505D9D2082077931E5F6A989ECA08DDDE852B0BDF0721D4D634BEC4D12E5D73E6E2291
• Submitted as: SDL3.dll
• File type: pe · Size: 2800128 bytes
• Verdict: suspicious (61/100) · Family: HUILoader

Detections (4 of 55 engines)

• capa (capabilities): capability:collection/keylog
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• Microsoft Defender: flagged

MITRE ATT&CK

• T1056.001

Why this verdict

The suspicious score of 61/100 is the fusion of 3 weighted signals:

• capture keystrokes (rule capture keystrokes) - capa signal, weight 0.40, confidence 0.80
• YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• https://devblogs.microsoft.com/pix/winpixeventruntime/

Embedded domains

• devblogs.microsoft.com
• libsdl.org

File paths

• C:\temp\SDL3-3.4.4\src\gpu\SDL_sysgpu.h
• C:\temp\SDL3-3.4.4\src\gpu\SDL_gpu.c
• C:\temp\SDL3-3.4.4\src\gpu\d3d12\SDL_gpu_d3d12.c
• C:\temp\SDL3-3.4.4\src\gpu\vulkan\SDL_gpu_vulkan.c
• C:\temp\SDL3-3.4.4\src\render\opengl\SDL_render_gl.c
• C:\temp\SDL3-3.4.4\src\render\software\SDL_render_sw.c
• C:\temp\SDL3-3.4.4\src\video\windows\SDL_windowswindow.c
• C:\temp\SDL3-3.4.4\VisualC\SDL\x64\Release\SDL3.pdb

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report