MALICIOUS
220
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1566.001 Spearphishing Attachment
T1059.005 Visual Basic
The RTF document contains OLE objects and triggers CVE-2017-8570, which is known to drop SCT scripts. The document body explicitly instructs the user to 'click Enable Editing when opening' to bypass security warnings. This suggests the document is designed as a lure to execute embedded malicious content, likely an SCT script, which would then proceed with further malicious actions.
Heuristics 7
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Composite Moniker — CVE-2017-8570 (drops SCT script) critical CVE_2017_8570RTF \objdata decodes to OLE data containing the Composite Moniker — CVE-2017-8570 (drops SCT script) CLSID — the vulnerable control/moniker is embedded directly in the document's object stream, the delivery shape of this exploit. RTF objects auto-render when Word opens the file.
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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
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Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
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Suspicious extracted artifact medium 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off0000095d.bin76f44dd0a0c4d6160702a445c215ca7fcd3bb5dc205e1998f3027a33d8ffa7b1 |
rtf-objdata-decoded | RTF \objdata at offset 0x95D | 23104 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 shell/COM execution token(s).
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objdata_01_off0000c5b3.binacfe22ea9e4ff240389575cbfc30c4442fd35fc5f8c4bda2b30eb5c2cf4c1cf0 |
rtf-objdata-decoded | RTF \objdata at offset 0xC5B3 | 2632 bytes |
objdata_02_off0000db56.bin142dc43284d9abe994719f8fb67bc4c04bfc3f07528a1a66b0bad7e552ee8e78 |
rtf-objdata-decoded | RTF \objdata at offset 0xDB56 | 12297 bytes |
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