RTF malware analysis — malicious · 4fe888be7338416d

MALICIOUS

RTF

531.0 KB

MD5: a73cd24500aa721080ceb5e974ac331a SHA-1: a1ab9e585c0c2956426744d2f599fedfea66d4f7 SHA-256: 4fe888be7338416d657a7c2ac95d535c5d3d5b9042a3aafa309bb992577ee554

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.001 PowerShell

The RTF document contains OLE object data, with heuristics indicating that \objupdate forces OLE activation. This suggests an attempt to exploit OLE object handling to execute embedded code. The extracted artifact 'objdata_00_off00001680.bin' is likely the payload. No scripts were extracted from this sample, and the document body is unreadable, limiting further analysis of the specific lure.

Heuristics 4

\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
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
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_off00001680.bin` `9e7ec69ca376a891f690d8c66ac6611b93cdd32d1025b1d606808d691c304663`	rtf-objdata-decoded	RTF \objdata at offset 0x1680	268951 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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