MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains text related to a magazine download, suggesting a lure. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves redirecting users to malicious infrastructure via a 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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Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LUREDocument contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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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=bsc+magazine+september+2020+pdf+download+in+english In PDF document text
- http://files.mcmillansofmalton.co.uk/uploads/1/3/1/4/131407952/bb2479e52a43f2.pdfIn PDF document text
- http://files.crossfitharborsprings.com/uploads/1/3/0/7/130775347/f13be5597e.pdfIn PDF document text
- http://warur.800steps.com/uploads/1/3/1/4/131482975/tudiwuserafemapazexu.pdfIn PDF document text
- http://peferujaw.oksirconnect.com/uploads/1/3/1/6/131637881/sabojexajakizune.pdfIn PDF document text
- http://files.focusonthegood.com/uploads/1/3/1/6/131637606/zaruvipopogodim.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/1/0430/3486/9921/files/minecraft_grand_theft_auto_mod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1998/5319/files/pipukuparuba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5544/7202/files/pakuta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1143/2867/files/levilodilixozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3337/0529/files/dr._arnold_ehret.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7120/1695/files/76070092951.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8871/5682/files/wovigulebevegukuwigoko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8638/1210/files/luderimozemopuvon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5769/0262/files/15084263106.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3906/4225/files/fulunetebewuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9181/0717/files/sepewixerekutofopapepulup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1044/0862/files/2176685651.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3998/0711/files/the_coldest_winter_ever_file.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1465/8980/files/94585492687.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_off00008bf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BF7 | 6176 bytes |
SHA-256: 5b7fdefc475dc799f317b5c533a61263770dd582ed56916e27d1706bb7d1a1e5 |
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font_01_sfnt_off0000a0d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0D3 | 11224 bytes |
SHA-256: 74d214dba2250dccbcfa0166dcdf31454bff46d8a5c89885ac4277078c680295 |
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