MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, specifically disguised as a "technical drawing textbook pdf". The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms that the primary link leads to known malicious redirector infrastructure. The PDF_SEO_LINK_FARM heuristic indicates a large number of external PDF links, suggesting a link farm or SEO poisoning attempt. No scripts were extracted, but the presence of malicious links is sufficient to classify the attack pattern.
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.com/pify?keyword=technical+drawing+textbook+pdf
- http://files.flyhighlittlebunny.shop/uploads/1/3/1/3/131379443/4552009.pdf
- http://files.eljewelrydesign.com/uploads/1/3/0/7/130775942/d047c10ef2eb607.pdf
- http://files.usedlicense.net/uploads/1/3/1/4/131454172/kuwugisutel_bosawirexuxobod_mupizi.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/0521/3847/files/sopebekorevowakabelutavi.pdf
- https://cdn.shopify.com/s/files/1/0433/5838/8383/files/muzitovizipopo.pdf
- https://cdn.shopify.com/s/files/1/0432/6254/1982/files/36173141357.pdf
- https://cdn.shopify.com/s/files/1/0428/4920/6439/files/97924172302.pdf
- https://cdn.shopify.com/s/files/1/0430/4027/6642/files/fitgirlsguide_28_day_jumpstart.pdf
- https://cdn.shopify.com/s/files/1/0438/3395/0358/files/97232911589.pdf
- https://cdn.shopify.com/s/files/1/0431/5486/6333/files/41712064651.pdf
- https://cdn.shopify.com/s/files/1/0427/9438/5575/files/dnd_3._5_books.pdf
- https://cdn.shopify.com/s/files/1/0431/2036/1629/files/mupukebekeboweruriduxi.pdf
- https://cdn.shopify.com/s/files/1/0434/1678/0956/files/pdf_reduce_file_size_online_free.pdf
- https://cdn.shopify.com/s/files/1/0427/4742/9031/files/colleen_hoover_slammed.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_off00004f77.binc69416ccc647c31b1827fe76e87fdef6d3fe72436119fc3f301d61deffc29b07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F77 | 5552 bytes |
font_01_sfnt_off0000626b.bina9f8dad3b7451ab77af770ccfbbc53c77bca45529d7b865989a1cebb24b05fb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x626B | 10440 bytes |
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