MALICIOUS
300
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The RTF document contains an embedded OLE object which, upon inspection, reveals a PE header. This strongly suggests the document is a container for a malicious executable. ClamAV signatures confirm the presence of a trojan, likely Win.Trojan.Agent-230724, which is designed to be delivered via spearphishing attachments.
Heuristics 7
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Composite Moniker in RTF OLE object high RTF_COMPOSITE_MONIKER_RELATEDRTF contains Composite Moniker CLSID in OLE object context, but no nearby scriptlet/SCT payload was confirmed. Treat as related moniker attack-surface evidence rather than proof of CVE-2017-8570 exploitation.
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PE header (with DOS stub) in hex data critical RTF_MZ_HEXHex-encoded PE (MZ + DOS stub) found inside RTF — likely an embedded executable payload
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ClamAV: Win.Trojan.Agent-230724 critical CLAMAV_DETECTIONClamAV detected this file as malware: Win.Trojan.Agent-230724
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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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Package object class high RTF_OBJCLASS_PACKAGEOLE Package object — can wrap arbitrary files
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OLE object data medium RTF_OBJDATARTF contains 1 \objdata section(s) — embedded OLE objects
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Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off000000ce.bin39a3e5966b0d0d8f0cb52c2d7c72cb589d10cc93675bdf0eebe4eed5dc9e3c22 |
rtf-objdata-decoded | RTF \objdata at offset 0xCE | 50974 bytes |
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Detection
ClamAV:
Win.Trojan.Agent-230724
Obfuscation or payload:
unlikely
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