MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link redirects through ttraff.cc, a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'ap stylebook pdf 2020 free download' and the redirector URL, suggesting a lure for users seeking this content. The presence of a visual download button heuristic further supports the deceptive nature of 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.cc/pify?keyword=ap+stylebook+pdf+2020+free+download In PDF document text
- http://files.liberarte.org/uploads/1/3/0/8/130874067/5310989.pdfIn PDF document text
- http://files.lightingshowroommullingar.com/uploads/1/3/0/7/130776046/jasopuwanezisorowa.pdfIn PDF document text
- http://files.karatecup.cz/uploads/1/3/2/8/132815175/jajere.pdfIn PDF document text
- http://files.dreadfullocksct.com/uploads/1/3/1/3/131380345/wokap.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/1/0432/6375/4404/files/66628121722.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3170/7294/files/balancing_chemical_reactions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1442/9608/files/21018756838.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1358/5566/files/1615897414.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5117/9416/files/78958394749.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0998/2107/files/19725149350.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37357510366.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1817/4107/files/automobilismo_d_epoca.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3234/6773/files/xoduzi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2626/7806/files/33533015322.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9464/6689/files/nupuzapivinijuwaku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5199/9637/files/warframe_melee_channel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9679/1456/files/blood_pressure_chart_by_age_and_weight_and_gender.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_off00006ca8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CA8 | 5696 bytes |
SHA-256: 0d004de2d1c73af13a598b88459c54071d443ec3fef795308d1714d30f87a3ca |
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font_01_sfnt_off00008032.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8032 | 10428 bytes |
SHA-256: 537de40102c42500f612700586f2af01f04a8c41b6828a9d2934d01fb5778f8c |
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