MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1027 Obfuscated Files or Information
The sample exhibits several high-severity heuristic firings indicative of malicious intent, including PEB access and an API hash resolver, commonly used to evade detection. The large slack space in the OLE document is also suspicious. While no document body or scripts were extracted, these anti-analysis techniques strongly suggest the file is a loader or dropper for a secondary payload.
Heuristics 4
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x86 GetPC stub (CALL $+5; POP EAX) high SC_GETPC_CALLx86 GetPC stub (CALL $+5; POP EAX)
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PEB access via FS segment (x86) high SC_PEB_ACCESSPEB access via FS segment (x86)
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PEB API-hash resolver high SC_API_HASH_RESOLVERPEB access followed by ROR13-style API hashing, a common position-independent shellcode import resolver
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 98,149 bytes but its declared streams total only 21,151 bytes — 76,998 bytes (78%) live in unallocated sector slack. This is the canonical hiding place for pre-macro-era Office exploit payloads (XOR-encoded shellcode reached via a parser pointer-corruption bug in the document structure).
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