MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a significant number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. One of the primary links, 'https://ttraff.ru/pify?keyword=signature+lab+series+general+chemistry+answers', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other Shopify-hosted PDF links. The ML classifier strongly indicated maliciousness, and the PDF structure itself is suspicious due to the mass of external links.
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=signature+lab+series+general+chemistry+answers In PDF document text
- http://files.mail.venltransport.nl/uploads/1/3/1/0/131070313/kigoge-juraxadigorun-jizokozuxa-topaxisujanu.pdfIn PDF document text
- http://files.marzipan-media.com/uploads/1/3/1/8/131856184/7584706.pdfIn PDF document text
- http://files.thelittlepointbookshop.com/uploads/1/3/0/7/130740231/162bd.pdfIn PDF document text
- http://files.qarpet.shop/uploads/1/3/0/9/130969065/8566434.pdfIn PDF document text
- http://files.edgeofthevillage.org/uploads/1/3/1/6/131606289/wujadisunova-sewifoxerefe-bosadixitifeb.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/1/0440/6948/6757/files/lajikarafuvevixododopekot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6622/0956/files/zowawugukowexu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0643/5232/files/xakowojetavekezarex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3373/9932/files/mirizaxakenasadur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7974/6201/files/52009319157.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5174/5442/files/gexepog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5608/6696/files/fonepowibopazufoju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3197/0471/files/doxigakegovaninijiket.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1760/1181/files/xazovadulo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5407/1957/files/download_wattpad_stories.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9151/5809/files/rofabatodenerajanolajubas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4191/4006/files/41376764746.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0963/7533/files/vasejufokemaxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9754/7157/files/56657207410.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5432/4117/files/vabuvinekevugadepanopebip.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_off00007002.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7002 | 5648 bytes |
SHA-256: d923c24c9acb4e5da01734952ff8931c218a5edc2462b958b4c26511b8b90c36 |
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font_01_sfnt_off0000832c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x832C | 9816 bytes |
SHA-256: b00bb91089816ccabc539e18915b6bb41c282c9a66dc224623770eb2c2223dc7 |
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