MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=biology+pdf+download'. This indicates the document is designed to lead users to malicious content. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious links. No scripts were extracted, but the presence of a malicious redirector URL is a strong indicator of a phishing or malware distribution 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=biology+pdf+download In PDF document text
- http://vepirobus.theboppsbling.com/uploads/1/3/1/4/131408899/b518363b48f092.pdfIn PDF document text
- http://fobeda.cubatrips.ca/uploads/1/3/0/7/130738731/vumefita_gobokofusasu_xebasuvoruxewo.pdfIn PDF document text
- http://files.computer-props.com/uploads/1/3/1/4/131437736/zosolovelage.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/1/0445/2201/2831/files/algebra_1_saxon_math.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4557/6088/files/22116998161.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7630/5564/files/xisataji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3074/8055/files/babawigulekavawozu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3069/9414/files/88729840805.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7853/3799/files/vazepatuwuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2185/8973/files/lavunapa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9017/3349/files/posatununonezovopo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2833/3219/files/35637235436.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4410/1544/files/tavidotajoxuzogiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7372/4825/files/bugidenadevudofupaji.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_off0000840e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x840E | 4768 bytes |
SHA-256: 42095394530ad5907f4329ae7ab95f83021d8743c81b489707162f6e5e7d6aef |
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font_01_sfnt_off00009460.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9460 | 10884 bytes |
SHA-256: 925969dcc1bb2a053f09fdc7d08b0e928a633becf08361aee78f720ad9c50a44 |
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font_02_sfnt_off0000b8f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8F4 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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