MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm designed to mimic search results for free book downloads, ultimately redirecting to malicious infrastructure at ttraff.ru. The ML classifier strongly indicated maliciousness, and the PDF structure suggests a SEO poisoning tactic to distribute malware. No scripts were extracted, but the embedded URLs are sufficient to indicate a malicious redirection attempt.
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=abdul+hameed+adam+books+pdf+free+download In PDF document text
- http://files.statenislandsolarcar.com/uploads/1/3/1/1/131163859/20876869825a.pdfIn PDF document text
- http://files.enamelchannel.com/uploads/1/3/2/7/132710779/vutoxovezimenumu.pdfIn PDF document text
- http://files.wyndcharmsilkenwindhounds.com/uploads/1/3/1/6/131606343/fidavanuwu_busasalim.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/1/0435/2645/5455/files/53791181917.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9095/8752/files/43262630784.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4010/3845/files/35007933007.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4550/2626/files/1968_dodge_truck.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4953/3088/files/jomago.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3798/2869/files/remamokaroti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81256704061.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4105/4111/files/although_however_exercises.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6550/0060/files/86659227895.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4365/1735/files/valekutifojitibepavurafer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2891/4074/files/53205682884.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8508/4310/files/76943911384.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2699/7663/files/workbench_design_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/8750/8135/files/ansi_b16_5_flange_dimensions_in_mm.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004a14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A14 | 5320 bytes |
SHA-256: cb75a5e542df46ac7af7ad704190dfe7e91c743175c0188b62cb586d0e41e8da |
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font_01_sfnt_off00005c0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C0D | 10684 bytes |
SHA-256: 5d68ea3a19897d25ec68709505a75a27395f2b48e973b216e2b43d1a41f4966e |
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font_02_sfnt_off00008072.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8072 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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