MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text fragments and URLs that suggest a lure for educational material, specifically a 'biology hl ib book pdf'. The primary malicious URL is https://ttraff.cc/pify?keyword=biology+hl+ib+book+pdf, which is likely used to redirect the user to further malicious content.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=biology+hl+ib+book+pdf In PDF document text
- http://files.zimmermansailing.com/uploads/1/3/0/7/130776401/nugadusijokesimuz.pdfIn PDF document text
- http://files.fibrocysticbreastnaturalhealth.com/uploads/1/3/2/8/132814306/wawesajebaf.pdfIn PDF document text
- http://files.nawicwaco.org/uploads/1/3/2/6/132696104/vatisawaxofumebit.pdfIn PDF document text
- http://files.myenchantedlocket.com/uploads/1/3/1/4/131437119/16c22d153a62b5.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/1/0432/5575/9011/files/ritebufepaluwenimorade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1687/0296/files/merine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3789128943.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4553/5400/files/brucellosis_in_pregnancy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2191/0694/files/84805446917.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8144/9118/files/76064186680.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4317/6091/files/d_d_classes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1916/6119/files/alternating_current_basics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3613/7882/files/alpha_bullet_gungeon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6929/9098/files/75063135118.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5613/6341/files/39403875820.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2616/9503/files/google_sheets_days_between_dates.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_off00007458.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7458 | 5172 bytes |
SHA-256: 63e4a50743201da7447f16aa1ffbfc8292b0e92e74038c2af0b96f72abe2c7bb |
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font_01_sfnt_off000085f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85F2 | 10388 bytes |
SHA-256: f9aab38676a1cbfb9c668efad30d7efc57bf14f02f4bba3b439e72da192f1c1b |
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