MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a high density of external links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=simplifying+algebraic+fractions+worksheet+corbettmaths'. The document body, though heavily obfuscated, also contains this URL, reinforcing its role as a lure. No scripts were extracted, but the primary attack pattern involves redirecting the user to malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=simplifying+algebraic+fractions+worksheet+corbettmaths In PDF document text
- http://sujix.haleyscometrun.com/uploads/1/3/1/0/131069915/tebasadop-zixesofoto-zunonujamu.pdfIn PDF document text
- http://files.jenniestrobel.com/uploads/1/3/1/3/131383959/nines.pdfIn PDF document text
- http://files.authormlhamilton.net/uploads/1/3/0/7/130739814/d2a1d5f75c.pdfIn PDF document text
- http://files.sweetlemonyarn.com.au/uploads/1/3/0/7/130739444/zabigulisu.pdfIn PDF document text
- http://files.firefallseffects.com/uploads/1/3/1/4/131437222/sibetasipejak_guguxowas_vuxisuniwel.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/1/0458/2365/6099/files/7045415123.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6828/3287/files/usps_flexible_spending_account_claim_form_2015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5575/9006/files/hozier_piano_sheet_music_work_song.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6193/5261/files/96430933972.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0893/3540/files/95866393620.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6017/3717/files/performance_standards_for_antimicrobial_susceptibility_testing_27th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6730/2295/files/folukazuvipaluperojot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9690/7678/files/baby_video_songs_mp4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4420/8797/files/36033725561.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3519/6566/files/national_geographic_magazine_july_2020_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1952/5534/files/rirukoxatedutalesitabe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3006/7865/files/mivafivurinolotiwonososer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8501/2900/files/almacenamiento_de_agua_potable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5172/7513/files/brasileirinho_portugus.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_off00008cb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CB7 | 5932 bytes |
SHA-256: edf3ff1c13971ab7c352a54f2117918d50577f4ba6fdde65f70742aa387e05a8 |
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font_01_sfnt_off0000a0d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0D2 | 14292 bytes |
SHA-256: 86a5129e6f0b37ca3b93da6844f9f09e28e18e0c270b6b2b59c0b1162676a9ba |
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