MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.ru), which is likely the primary malicious payload delivery mechanism. The ML classifier strongly supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
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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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=general+mental+ability+and+reasoning+questions+and+answers+pdf
- http://files.metcalfe4pa.org/uploads/1/3/1/4/131408280/704d38.pdf
- http://files.piasiagallery.com/uploads/1/3/1/8/131856358/pelevixibujova_ximewusodo_jumuwakofidewu.pdf
- http://files.bctents.com/uploads/1/3/1/3/131380666/fogogifiwekimeviwex.pdf
- http://files.endhomelessnessla.org/uploads/1/3/0/9/130969377/1246535.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/1307/8168/files/2.pdf
- https://cdn.shopify.com/s/files/1/0432/1266/9089/files/leresenuro.pdf
- https://cdn.shopify.com/s/files/1/0433/3341/9166/files/golden_companion_scooter_repair_manual.pdf
- https://cdn.shopify.com/s/files/1/0438/9280/1704/files/bufadoselis.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86593634255.pdf
- https://cdn.shopify.com/s/files/1/0428/0477/3031/files/hotel_dash_2.pdf
- https://cdn.shopify.com/s/files/1/0433/1310/2998/files/nilenaniperokujave.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49090326843.pdf
- https://cdn.shopify.com/s/files/1/0428/3141/3414/files/fozunekawiwidemu.pdf
- https://cdn.shopify.com/s/files/1/0429/4079/2999/files/cobra_microtalk_manual.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000634d.bin2cd8bd1012dc8789a7f76bda3430a275421060a47d2ab3b603f3273c88c290d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x634D | 5852 bytes |
font_01_sfnt_off0000772c.bind87fe5a3ead106ae2be4e9d8d3c1e14dc9cfff686e14ec1b365e8d7780032796 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x772C | 13268 bytes |
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