MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=add+transparent+png+to+pdf'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to Shopify domains, one of which is 'https://cdn.shopify.com/s/files/1/0434/2287/5813/files/80471981395.pdf'. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic suggests a lure to trick the user into clicking these links. The document body, though partially corrupted, contains text related to adding transparent PNGs to PDFs and mentions wkhtmltopdf, indicating a potential social engineering pretext.
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=add+transparent+png+to+pdf In PDF document text
- http://files.w-sindustrial.com/uploads/1/3/1/4/131437041/nanuzinaro.pdfIn PDF document text
- http://wuvatifi.artsstudentsassociation.org/uploads/1/3/1/0/131070109/foselodubaguvaz_gabarejizira_xijutumizej.pdfIn PDF document text
- http://webuzek.jacandhugo.com/uploads/1/3/0/8/130813765/fowisiti.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/1/0434/2287/5813/files/80471981395.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8838/0061/files/lunowalixetu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7968/7574/files/tuwuzotowubove.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5124/5987/files/rivem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8297/3346/files/29604047279.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/7754/6663/files/my_blue_book_of_grammar_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1411/1903/files/rusifugovutukafirexum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9263/0940/files/definicion_de_ontologia_en_filosofia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9735/7472/files/52782719543.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8929/7568/files/94964057475.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1523/2923/files/1805134753.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9228/5342/files/sotolezugovejabasir.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_off000063c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63C2 | 5164 bytes |
SHA-256: 86e8fb44e0ce9b623f81c2f6b82070405d2d99369277d3bf91c8e24f8b262423 |
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font_01_sfnt_off00007563.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7563 | 10544 bytes |
SHA-256: 20d43992d81848c05c49258f2e5a53ab39f7b44d077a6e68455235a23e0f7bbb |
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