RTF malware analysis — malicious · ba0e827b4a6b462b

MALICIOUS

RTF

662.9 KB

MD5: 49e436dfe9a2de626b047dc3d64fe646 SHA-1: ee8123aff9fa6c578603f05be5dd24f18ea1720c SHA-256: ba0e827b4a6b462bcfa9c507de0448686d5bef465622807dfddb4c166e9aa04f

240 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The RTF file contains embedded OLE objects and triggers heuristics related to CVE-2017-8570, which is known to drop SCT scripts. The document body includes a lure instructing the user to 'Enable Editing' to view the content, a common tactic for malicious documents. The presence of OLE objects and the specific CVE exploit indicate an attempt to execute a secondary payload.

Heuristics 7

Composite Moniker — CVE-2017-8570 (drops SCT script) critical CVE related CVE_2017_8570

RTF \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.
Composite Moniker in RTF OLE object high CVE related RTF_COMPOSITE_MONIKER_RELATED

RTF 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.
Automatically linked OLE object high RTF_OBJAUTLINK

RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
\objupdate forces OLE activation high RTF_OBJUPDATE

RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
OLE object data medium RTF_OBJDATA

RTF contains 4 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00000bac.bin` `dc7575c2f680c4ec099b3a45e53592b59718f595b312a6aea9eceb1678ffe806`	rtf-objdata-decoded	RTF \objdata at offset 0xBAC	221077 bytes
`objdata_01_off0000735b.bin` `56bce9aea480cf2f1dc684edefa3adc2e792afe28ae29755489a5d295ba33084`	rtf-objdata-decoded	RTF \objdata at offset 0x735B	221050 bytes
`objdata_02_off00077804.bin` `51ef705eef602ac6eb91c2063c8f50d4e54b5e051b60429031d41133bc7df645`	rtf-objdata-decoded	RTF \objdata at offset 0x77804	2632 bytes
`objdata_03_off00078da7.bin` `e8d4fe950caed6dcfde26f4b616825bbe11b93458425974b7d075167f675abf7`	rtf-objdata-decoded	RTF \objdata at offset 0x78DA7	12297 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.