MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text fragments that appear to be a lure for 'Cambridge english proficiency 2 pdf chomikuj', suggesting a phishing or scam attempt. The presence of a download button lure further supports this. The primary attack vector is likely a user clicking the malicious link within the document.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.com/pify?keyword=cambridge+english+proficiency+2+pdf+chomikuj In PDF document text
- http://feruvez.katewestcott.com/uploads/1/3/1/0/131070161/soxid-rajedufonokokav-kuzukoxumijidap.pdfIn PDF document text
- http://files.myped15.com/uploads/1/3/1/4/131437249/xaziwoner_fezomabazadis.pdfIn PDF document text
- http://files.accpubink.com/uploads/1/3/2/3/132303353/540911754142ed0.pdfIn PDF document text
- http://files.maldenmedia.com/uploads/1/3/0/7/130775228/6cfafd8036277d.pdfIn PDF document text
- http://files.weenip.org.uk/uploads/1/3/1/0/131069887/0ff32.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/1/0439/5502/8126/files/container_gardening.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5811/9334/files/tejumulijoragexo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4849/3475/files/toyota_rav4_owners_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7292/9435/files/20830364779.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3776/9383/files/90041433281.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1385/7692/files/famezi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9162/3077/files/84989532555.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2820/0096/files/fenuzetij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4638/7367/files/baldor_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7065/1542/files/binomio_de_newton_exercicios.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9349/8787/files/7534029383.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4279/8757/files/32605693127.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5382/4677/files/69062702507.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7673/0533/files/statics_and_mechanics_of_materials_bedford.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_off000068f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68F4 | 5988 bytes |
SHA-256: 0986d2f0d7aa4244f78ea269b9577047e6561c0b3ee91c690c27996e2d32bd86 |
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font_01_sfnt_off00007d30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D30 | 9948 bytes |
SHA-256: e5e57cf681b13857ff66589b95604359074c99c8fe35adea1019fa225dd99a0a |
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