MALICIOUS
200
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
The file is an OLE document containing VBA macros, specifically an AutoOpen macro, which is a common technique for executing malicious code upon opening. The document body explicitly warns of a virus, likely a social engineering tactic to prompt the user to interact with or bypass security measures. ClamAV detected an embedded artifact as 'Doc.Trojan.Marker-2', indicating known malicious content.
Heuristics 5
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ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAVClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 40,448 bytes but its declared streams total only 19,176 bytes — 21,272 bytes (53%) 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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AutoOpen macro high OLE_VBA_AUTOOPENAutoOpen macro
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Document_Open macro high OLE_VBA_DOCOPENDocument_Open macro
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VBA macros detected medium OLE_VBA_MACROSDocument contains VBA macro code
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas71d0b45f06d6e439c36e96cbe26bb99816be75ff82bc48366d46b720d457aa38 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 4648 bytes |
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Detection
ClamAV:
Doc.Trojan.Marker-2
Obfuscation or payload:
unlikely
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