MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1059.003 Windows Command Shell
The sample exhibits a large amount of slack space within its OLE structure, which is often used to hide malicious content. Furthermore, heuristics indicate suspicious access to the Process Environment Block (PEB) and a suspicious invocation of cmd.exe. These indicators suggest the document is designed to execute a command-line payload.
Heuristics 3
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PEB access via FS segment (x86) high SC_PEB_ACCESSPEB access via FS segment (x86)
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Suspicious cmd.exe invocation with execution flag high SC_STR_CMDSuspicious cmd.exe invocation with execution flag
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 191,745 bytes but its declared streams total only 94,801 bytes — 96,944 bytes (51%) 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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