MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link at 'https://ttraff.cc/pify?keyword=advanced+computer+architecture+parallelism+scalability+programmability+pdf' points to known malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic indicates a mass of external PDF links, suggesting a tactic to artificially inflate search engine rankings or distribute content through a large number of seemingly benign but controlled URLs. The document body is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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 https://ttraff.cc/pify?keyword=advanced+computer+architecture+parallelism+scalability+programmability+pdf In PDF document text
- http://files.lowerbrimleycoombefarm.com/uploads/1/3/0/7/130739076/2654222.pdfIn PDF document text
- http://files.thevamcommanders.com/uploads/1/3/1/1/131164118/refuzagosopi.pdfIn PDF document text
- http://files.waddellapples.com/uploads/1/3/2/7/132741149/090169.pdfIn PDF document text
- http://files.oldbostwicks.com/uploads/1/3/2/7/132740399/4567209.pdfIn PDF document text
- http://files.pblplace.com/uploads/1/3/0/7/130775588/sabokefuwo_gotirusugito.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5042/6780/files/94923595402.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0933/5715/files/53768173958.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gidawibozifuniji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3881/8982/files/tajepixofazu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9986/4734/files/papobimorewi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94215193789.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5072/9621/files/telexefo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1570/7551/files/sanemupinevefotibeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7556/7777/files/tipavowojofapizob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0700/0219/files/kipoxugadapow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5311/2735/files/bazexodemej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0579/6774/files/66542288832.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8421/0583/files/tanixilofugutopukitofol.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a981.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA981 | 5740 bytes |
SHA-256: dfcfa6bea67799ab26ccc157f64a83e3449178b888fb154931ef98d8f1a047a3 |
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font_01_sfnt_off0000bcda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCDA | 10160 bytes |
SHA-256: 7e2c651b13808a1b256fa1bd7695d2105f1fd930e7b2e17729f17689ee4804e9 |
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