MALICIOUS
122
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The RTF file contains an embedded OLE object that is triggered by \objupdate, indicating an attempt to exploit a client-side vulnerability. The extracted artifact 'objdata_00_off00001661.bin' likely contains shellcode, and the presence of a URL suggests it is used to download a secondary payload. The benign reputation of the URLs does not negate the suspicious nature of the embedded object and shellcode.
Heuristics 4
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Suspicious extracted artifact critical EXTRACTED_FILE_STATIC_TRIAGEOne 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.
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\objupdate forces OLE activation high RTF_OBJUPDATERTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
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OLE object data medium RTF_OBJDATARTF contains 1 \objdata section(s) — embedded OLE objects
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://schemas.microsoft.com/office/word/2003/wordml In RTF body
- http://bit.ly/2NB6VMPIn RTF body
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00001661.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x1661 | 1672 bytes |
SHA-256: 108a19202749b38280a41822396ed161056cd24866eafc3fcc4d3608ac00cc8e |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Static shellcode analysis recovered URL(s): http://bit.ly/2NB6VMP
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