MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1027 Obfuscated Files or Information
T1140 Deobfuscate/Decode Files or Information
The RTF file contains a large OLE object with excessive hex-encoded data, a common technique for hiding payloads. The \objupdate heuristic indicates that this object is designed to be activated. ClamAV detection confirms this as Rtf.Dropper.Agent, suggesting it acts as a dropper for other malicious content. The file size and the presence of objdata strongly suggest it's designed to deliver a secondary payload.
Heuristics 5
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ClamAV: Rtf.Dropper.Agent-7513028-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Rtf.Dropper.Agent-7513028-0
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\objupdate forces OLE activation high RTF_OBJUPDATERTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
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Large hex data blocks in OLE object high RTF_EXCESSIVE_HEXRTF contains ~4151KB of hex-encoded data inside \objdata sections — may hide a payload
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OLE object data medium RTF_OBJDATARTF contains 1 \objdata section(s) — embedded OLE objects
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00000085.bin1c0d7aa3c3551d58732751acdb60e6c9ecf0b89e1b12f19e4d7252f7fd53c146 |
rtf-objdata-decoded | RTF \objdata at offset 0x85 | 2075841 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.99, consistent with packed or encrypted content.
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