MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a search result for educational materials. It also features a link farm with numerous external PDF links, many hosted on Shopify, likely for SEO manipulation or to distribute further payloads. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL supports a phishing or redirection attack pattern.
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=calculus+early+transcendentals+6th+edition+pdf+solutions In PDF document text
- http://dapuv.blendedscience.net/uploads/1/3/0/7/130776644/wudaru_vepexojuzod_sajamevukotal.pdfIn PDF document text
- http://vujowej.nazikgallery.com/uploads/1/3/1/4/131406082/7976c05c.pdfIn PDF document text
- http://files.canyonfallsestates.org/uploads/1/3/0/9/130969151/8af2e8931.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/2537/5130/files/wefoxaxunividogup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5529/2321/files/pupiximam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5670/9288/files/wowaduvisugorumixisi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5827/4205/files/78222397701.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6126/5062/files/88872978607.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7106/9594/files/47354527307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2771/6520/files/articulaciones_del_craneo_y_cara.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12339474235.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9091/2159/files/51493138187.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9672/7957/files/worthy_of_my_praise_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0392/5912/files/differential_equations_4th_edition_blanchard.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7330/5762/files/6737875250.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9030/3381/files/diplomasi_budaya_indonesia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0141/3785/files/anemia_ferropenica_oms_2020.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
🗂 Part of campaign:
blendedscience.net
5 samples
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000646f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x646F | 5404 bytes |
SHA-256: 3ed753955b23409394d45973618607d5d8033b0d287c3779ec219a6769e52c60 |
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font_01_sfnt_off000076cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76CD | 14140 bytes |
SHA-256: 77535f1fa74f58e42f002aace62f54ade9fe7d7010ee91d9d45ce521027d105f |
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font_02_sfnt_off0000a30a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA30A | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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