RTF malware analysis — malicious · 358aa27f4fa13de5

MALICIOUS

RTF

121.4 KB

MD5: f96117235a02391f159a6ded4d23cd1a SHA-1: d0ceb14874a2abb8ac21102e08a5436b18c5aad2 SHA-256: 358aa27f4fa13de5197ba13a292ae1e082c6578f96c6952123649cbc15e18311

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains OLE object data and a ".objupdate" directive, indicating an attempt to exploit OLE object activation. This suggests the file is designed to deliver a payload via an embedded object. The extracted artifact 'objdata_00_off00000096.bin' is likely the malicious payload. No scripts were extracted from this sample.

Heuristics 3

\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 1 \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_off00000096.bin` `f660cbd278fcc2ed0271eeb84394f65b4571d8b8f0b8e021773721aa17365070`	rtf-objdata-decoded	RTF \objdata at offset 0x96	61975 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 8.00, consistent with packed or encrypted content.

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