Malware Insights
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.
Heuristics 4
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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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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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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
- http://files.w-sindustrial.com/uploads/1/3/1/4/131437041/nanuzinaro.pdf
- http://wuvatifi.artsstudentsassociation.org/uploads/1/3/1/0/131070109/foselodubaguvaz_gabarejizira_xijutumizej.pdf
- http://webuzek.jacandhugo.com/uploads/1/3/0/8/130813765/fowisiti.pdf
- https://cdn.shopify.com/s/files/1/0434/2287/5813/files/80471981395.pdf
- https://cdn.shopify.com/s/files/1/0430/8838/0061/files/lunowalixetu.pdf
- https://cdn.shopify.com/s/files/1/0433/7968/7574/files/tuwuzotowubove.pdf
- https://cdn.shopify.com/s/files/1/0429/5124/5987/files/rivem.pdf
- https://cdn.shopify.com/s/files/1/0430/8297/3346/files/29604047279.pdf
- https://cdn.shopify.com/s/files/1/0444/7754/6663/files/my_blue_book_of_grammar_download.pdf
- https://cdn.shopify.com/s/files/1/0428/1411/1903/files/rusifugovutukafirexum.pdf
- https://cdn.shopify.com/s/files/1/0433/9263/0940/files/definicion_de_ontologia_en_filosofia.pdf
- https://cdn.shopify.com/s/files/1/0434/9735/7472/files/52782719543.pdf
- https://cdn.shopify.com/s/files/1/0430/8929/7568/files/94964057475.pdf
- https://cdn.shopify.com/s/files/1/0433/1523/2923/files/1805134753.pdf
- https://cdn.shopify.com/s/files/1/0439/9228/5342/files/sotolezugovejabasir.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000063c2.bin86e8fb44e0ce9b623f81c2f6b82070405d2d99369277d3bf91c8e24f8b262423 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63C2 | 5164 bytes |
font_01_sfnt_off00007563.bin20d43992d81848c05c49258f2e5a53ab39f7b44d077a6e68455235a23e0f7bbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7563 | 10544 bytes |
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