RTF malware analysis — malicious · 9f94f61759b69060

MALICIOUS

RTF

675.6 KB

MD5: 1239854d603dfaf0d332ba7551d98b4e SHA-1: 5e4070dcac6dc3601a37cfd372e38c7274a23d41 SHA-256: 9f94f61759b69060d4690bddc51bf0ff15d6c103779355b2399e039cf0b0cba7

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF document contains multiple OLE objects, with one specifically triggering an update that forces activation. This suggests an attempt to execute embedded code. The extracted artifact 'objdata_00_off0000001a.bin' is flagged as suspicious, potentially containing script execution terms. While the exact payload is not fully discernible from the truncated script, the overall structure points to a malicious OLE-based attack. The confidence is moderate due to the lack of complete script visibility.

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 3 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
Suspicious extracted artifact medium 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000001a.bin` `283da8180dc723471201ee7e913a5258242bd514645ac85f52c285aec4b12b4c`	rtf-objdata-decoded	RTF \objdata at offset 0x1A	344151 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).
`objdata_01_off000a80f7.bin` `6ef048de06e9c2e6b420e78a489e52123766b08549a074a5f95b98ffe8558f38`	rtf-objdata-decoded	RTF \objdata at offset 0xA80F7	1709 bytes
`objdata_02_off000a8107.bin` `8935eb605040753f89379b3f05c2cdaefba833ec64299ed9c258020f4c1217b0`	rtf-objdata-decoded	RTF \objdata at offset 0xA8107	36 bytes

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