MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to funnel victims to further malicious content. The document body and embedded links suggest a lure for free PDF downloads, a common tactic for distributing malware or leading users to phishing sites. The ML classifier strongly supports the malicious nature of this PDF.
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=essentials+of+cardiopulmonary+physical+therapy+pdf+free+download In PDF document text
- http://files.cloudcatmedia.com/uploads/1/3/0/7/130776575/ab8a8.pdfIn PDF document text
- http://nimizakep.rebeccabrillweitz.com/uploads/1/3/1/0/131070792/dosapovof.pdfIn PDF document text
- http://files.pft1881.org/uploads/1/3/1/4/131410812/kegeni_xumemitotavepo_sukese.pdfIn PDF document text
- http://tuwokexu.faithdimensions.org/uploads/1/3/1/6/131606490/tafajitigadozetov.pdfIn PDF document text
- http://files.barrackvillechurch.com/uploads/1/3/1/4/131407823/bokitosuvotim_zokeguxuraxi_tuximop_wajokutopuxolu.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/1/0430/8349/7623/files/46361465232.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0965/4436/files/git_rename_branch.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5671/7224/files/9208790911.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5578033559.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2625/9876/files/simiwupuxuxewixono.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9599/0175/files/nigger_owners_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8897/7813/files/tegimogatafavedafonefil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1895/2610/files/vegukuwidepil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8392/3609/files/article_in_english_grammar_with_examples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3236/3676/files/naganomonug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3019/9966/files/nixaverofaviwe.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_off00004824.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4824 | 5428 bytes |
SHA-256: ade97b03da4dcdd996619767ebdc9fa5dad8794ab80f531a2aed9e20b06f04ac |
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font_01_sfnt_off00005a7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A7E | 9644 bytes |
SHA-256: 297150b611f34011480c6cdf1ce62f222782d463df5bbdf037f1301fba910f64 |
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font_02_sfnt_off00007b2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B2D | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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