MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting a link farm or SEO poisoning attempt. The primary malicious URL identified is https://ttraff.ru/pify?keyword=history+of+english+literature+timeline+pdf, which is likely used to funnel users to further malicious content. The ML classifier also strongly indicated maliciousness.
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.ru/pify?keyword=history+of+english+literature+timeline+pdf In PDF document text
- http://files.adelaide-brushfencing.com.au/uploads/1/3/2/3/132302802/3ff77.pdfIn PDF document text
- http://files.utahenglishcreamgoldenretrievers.com/uploads/1/3/0/8/130874612/2271216.pdfIn PDF document text
- http://files.nnis.net/uploads/1/3/0/7/130776131/dajegukurewoniros.pdfIn PDF document text
- http://files.travelsuitsyou.net/uploads/1/3/0/7/130740536/6f250517d9afb.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/1/0435/9002/5375/files/vezosupojasirobubiduxese.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zukukujumifuxutage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8066/3715/files/16980987736.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4995/7029/files/57225830150.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23342697578.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/1946/4867/files/cuento_bienvenido_bob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9570/4220/files/79318022644.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2883/2675/files/bumunotamivovajizovokut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5254/7739/files/vofoleguko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4416/7064/files/roxix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3178/7670/files/57846615561.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2656/9633/files/88907227587.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6745/7188/files/calculus_11th_edition_larson_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9542/4165/files/cpa_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5575/9011/files/17919732363.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_off0000c250.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC250 | 5516 bytes |
SHA-256: b2ea0994c817905128f6ecdb55fb738969f18a31c665cb10e0bf118820e660c5 |
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font_01_sfnt_off0000d4e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4E9 | 10792 bytes |
SHA-256: eb202de84c0535b0fa4602cd826b2bcd6350c91ece7785234e7db87dde4a1396 |
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