MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, indicating a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=second+conditional+sentence+exercises+pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to the same URL and other Shopify-hosted PDF files, suggesting a coordinated effort to distribute malicious content through a network of links.
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=second+conditional+sentence+exercises+pdf In PDF document text
- http://fikut.mzsacredhealing.com/uploads/1/3/2/7/132712358/towolo.pdfIn PDF document text
- http://files.whitthavenphotography.com/uploads/1/3/1/3/131380666/nuliwavezisojosef.pdfIn PDF document text
- http://files.myartscreations.com/uploads/1/3/0/9/130969301/5773958.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/5638/8510/files/27055123736.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2821/0073/files/rixemalezifa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3555/0118/files/sales_executive_interview_questions_pdf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6707/9830/files/text_appeal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9947/8434/files/82453199225.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9435/1778/files/samajajizilagexalogadar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1644/4315/files/35171021083.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2931/4206/files/58859948000.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9827/4978/files/zopumunaxuduzedamebo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7022/5574/files/broward_college_south_campus_map.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4287/3249/files/garbage_disposal_methods.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0013/3793/files/craft_magic_arms_and_armor_pathfinder.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7264/3491/files/noxuxosifufinupafewu.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005243.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5243 | 5108 bytes |
SHA-256: 6e2034b7dc6aa020806a2d32074131b7b1028c9f62d487c8ff6052f2c7b1c008 |
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font_01_sfnt_off000063a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63A0 | 10200 bytes |
SHA-256: 88c94fc47245d421902770438978dbda52ebbf8dd8eae8bb28639526acdf217f |
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font_02_sfnt_off0000868f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x868F | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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