RTF malware analysis — malicious · bd7aa18869dd82e0

MALICIOUS

RTF

500.8 KB

MD5: 6744f4c32bcfe40b8f81e24c5fcb5de2 SHA-1: a510e1b6e03f47609c893817bfe53e84cc9cc665 SHA-256: bd7aa18869dd82e07ce07f1679c5a9cefd066e2d33cf728255ce31312446a0a3

166 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF document contains embedded OLE objects, indicated by the RTF_OBJDATA and RTF_OLE10NATIVE_STREAM heuristics. The RTF_OBJUPDATE heuristic suggests that these objects are designed to be automatically activated upon opening the document, likely leading to the execution of a secondary payload. The high entropy of the extracted artifact further supports the presence of obfuscated or packed malicious code. No document body or script content was available for further analysis.

Heuristics 4

Ole10Native stream in RTF OLE object high CVE related RTF_OLE10NATIVE_STREAM

RTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
\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 2 \objdata section(s) — embedded OLE objects
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One 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_off00000fe2.bin` `77cd5058efb47472506c397a917cd1992356b87547cd3ca3de31f7784682508f`	rtf-objdata-decoded	RTF \objdata at offset 0xFE2	145459 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.98, consistent with packed or encrypted content.

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