MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially corrupted, contains a question and references to wkhtmltopdf, suggesting it's a generated document. The primary attack pattern involves directing users to a network of linked websites, likely for SEO manipulation or to host further malicious content. No scripts were extracted, and the maliciousness is inferred from the link farm and ML classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 4
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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://7qswk.bpmtc.com/uploads/1/3/1/4/131452935/131452935.html#what+was+the+electron+s+initial+speed%253F
- http://globalinvestmentforums.com/uploads/1/3/0/5/130589158/8158078.pdf
- http://payteens.org/uploads/1/3/0/4/130477036/8ebf0b87d7f.pdf
- http://iamworthhim.com/uploads/1/3/0/5/130588922/60b74180efb.pdf
- http://katskornerinternational.org/uploads/1/3/0/4/130489072/fulazogixumigom.pdf
- http://thevegarab.com/uploads/1/3/0/7/130738753/7571070.pdf
- http://skinsoullove.nl/uploads/1/3/1/4/131437886/2352763.pdf
- http://flemingtournament.com/uploads/1/3/0/5/130590325/sagawik.pdf
- http://wangziyulekaihu.br3h.com/uploads/1/3/0/5/130590241/0665637b823.pdf
- http://wu.undesirable.us/uploads/1/3/0/7/130775651/1759644.pdf
- http://support.futureappleceo.com/uploads/1/3/0/7/130739499/5747603.pdf
- http://7qswk.bpmtc.com/uploads/1/3/1/4/131452935/terms.html
- http://7qswk.bpmtc.com/uploads/1/3/1/4/131452935/dmca.html
- http://7qswk.bpmtc.com/uploads/1/3/1/4/131452935/policy.html
- https://witudekodi.files.wordpress.com/2020/06/dukelusikewasoxujirufod.pdf
- https://pusetojax.files.wordpress.com/2020/06/zivawexururusegevabineko.pdf
- https://pafekuka479092809.files.wordpress.com/2020/06/mopiwusorowegoniwedebu.pdf
- https://zutabav590496275.files.wordpress.com/2020/06/64284487884.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005166.bin86acad2dde498f964ca133663f00881fc4f141560ed7782f1b72553165f80216 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5166 | 10040 bytes |
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