MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is used to lure users with search result-like content for educational materials. This redirector likely leads to a malicious payload or phishing page. No scripts were extracted from this sample.
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=cambridge+checkpoint+science+coursebook+9+free In PDF document text
- http://files.yourfitnesschloeshea.com/uploads/1/3/1/4/131406604/zonube.pdfIn PDF document text
- http://files.lucamaumc.org/uploads/1/3/2/6/132681632/2809977.pdfIn PDF document text
- http://files.artinthebarndorchester.com/uploads/1/3/1/4/131406527/8851108.pdfIn PDF document text
- http://files.cherokeecountydemocraticparty.com/uploads/1/3/0/8/130813428/9530187.pdfIn PDF document text
- http://files.solidstatecircus.com.au/uploads/1/3/2/6/132696174/vikerituda_bapepa_puwadipigumug_fivoxiw.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/1/0433/7372/3800/files/coldplay_yellow_guitar_tab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7122/5494/files/51972304343.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0331/3315/files/headway_elementary_workbook_4th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4664/8473/files/biopsychology_10th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1814/9285/files/zadezatesatopokuxele.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8320/0680/files/70533919598.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8489/0790/files/karinafaxitimopokol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4746/1788/files/fipegisiferagos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7319/8497/files/76086431329.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/5096/4904/files/36610749895.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2241/7046/files/5891456770.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2295/6197/files/66603548205.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4232/4125/files/captopril_25_mg_bula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3834/2311/files/bmi_calculation_formula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4441/3350/files/kebolixu.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_off00006b04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B04 | 5804 bytes |
SHA-256: 9f7d6ee3a055f52ff0156cd3ceb8f6602f7d96f13c6b820d778c4a4ba8774a81 |
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font_01_sfnt_off00007ea0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EA0 | 10036 bytes |
SHA-256: ae47c81bf159e7cd77102464991f94adb822727ab10dcd4edae164d4148ec6ba |
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