MALICIOUS
260
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The RTF file contains an embedded OLE object, identified as a Package object class, which in turn contains a PE header in hex data. ClamAV detections confirm this is a malicious dropper. The embedded artifact is likely a secondary payload designed to be executed when the OLE object is interacted with.
Heuristics 6
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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.Dropper-1878 critical CLAMAV_DETECTIONClamAV detected this file as malware: Win.Trojan.Dropper-1878
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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_off000000cf.binfb33b27f785e362aba2c32a83a1baabfd35dc33d52bc648f92d89508b707dcbb |
rtf-objdata-decoded | RTF \objdata at offset 0xCF | 44358 bytes |
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Detection
ClamAV:
Win.Trojan.Dropper-1878
Obfuscation or payload:
unlikely
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