MALICIOUS
202
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 of which point to external sites. One critical heuristic identified a link to a known malicious redirector, and another flagged the document as a link farm. The presence of a visual download button lure further supports the malicious intent. The document body itself is heavily obfuscated and contains a URL that appears to be part of the link farm.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=catholicism+series+study+guide+pdf In PDF document text
- http://files.anahatahealing.net/uploads/1/3/0/7/130739379/delovumita-zawutokok-ravekef.pdfIn PDF document text
- http://files.pippaspilatesstretch.com/uploads/1/3/2/8/132814241/rebiwogafamujoba.pdfIn PDF document text
- http://files.jrticulinary.com/uploads/1/3/0/7/130738755/roxizopejakep.pdfIn PDF document text
- http://pesuw.thoroughbredheritagehorseshow.com/uploads/1/3/0/7/130776257/7ac76d20287b0.pdfIn PDF document text
- http://files.carolynfine.com/uploads/1/3/0/7/130775727/b1b98d.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/1/0433/0687/7080/files/16949815227.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3013/4427/files/35505027482.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3522/1403/files/94147061314.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6493/3014/files/revivafosaxaxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0363/3051/files/59343650911.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2240/1192/files/zijojijozevozirekomorum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5274/4347/files/76230548902.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1479/1068/files/fupopopaboboriwijaduxeno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2350/6336/files/sagefewupopat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6640/9639/files/3837522233.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8117/9037/files/jovoxovisarosubasawixokip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4819/8556/files/xasijulimolalotodujibev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2353/1175/files/luxuworazud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9925/1093/files/kapekawefabilaweroxumaki.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_off0000655f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x655F | 5576 bytes |
SHA-256: 6da81a15b169235980538bc6eb074b47fac31dfa34e39e3698da32e268a939ba |
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font_01_sfnt_off00007833.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7833 | 10540 bytes |
SHA-256: 4b0969864a72cf922dfe6500e8f9a0c4d5d45598bdfbbde848e71406f2832e00 |
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