MALICIOUS
123
Risk Score
Malware Insights
MITRE ATT&CK
T1559.001 Component Object Model
T1204.002 Malicious File
The RTF document contains multiple OLE objects, with specific heuristics indicating the use of \objdata and \objupdate, strongly suggesting an attempt to exploit OLE activation for code execution. The presence of Composite Monikers further supports this. No document body text or scripts were extracted, limiting the ability to determine the exact payload or delivery mechanism.
Heuristics 4
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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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\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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OLE object data medium RTF_OBJDATARTF contains 3 \objdata section(s) — embedded OLE objects
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Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off000007d0.bin8e034eb8d130fb2a19789877ef9a9d6f0b4416ed38c5a573e9d41a1bcaa3c413 |
rtf-objdata-decoded | RTF \objdata at offset 0x7D0 | 49515 bytes |
objdata_01_off00019abc.binea39900f3f35bed9f78c8f6402daf7e23b4f89a2f7c10ee6f3ec6918b4c4be7e |
rtf-objdata-decoded | RTF \objdata at offset 0x19ABC | 2632 bytes |
objdata_02_off0001b05f.bin44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037 |
rtf-objdata-decoded | RTF \objdata at offset 0x1B05F | 12297 bytes |
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