MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links to redirectors and external PDFs, masquerading as a free software tutorial download. The primary redirector URL, https://ttraff.ru/pify?keyword=adobe+illustrator+cs6+tutorials+for+beginners+pdf+free+download, is flagged as malicious and an SEO link farm heuristic indicates a large number of similar links. The ML classifier strongly indicates maliciousness, supporting a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=adobe+illustrator+cs6+tutorials+for+beginners+pdf+free+download In PDF document text
- http://files.anncarragher.com/uploads/1/3/2/7/132740685/2518897.pdfIn PDF document text
- http://jomij.jolenewright.com/uploads/1/3/0/8/130813765/samumof_wixafutubokoko.pdfIn PDF document text
- http://files.littlebitofheavenadoptionreferral.com/uploads/1/3/0/8/130813991/zumudimeri-vuxiwezijan.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/1/0431/2698/0765/files/16528071217.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5340/8675/files/nesazusegetusitunam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/captivated_by_you_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6925/1487/files/vaduf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7019/2805/files/boloburavomokemuwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5211/3820/files/zijizekorobimazuliginun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2754/5763/files/palekigisur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0904/7708/files/72966199591.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1130/8696/files/mabipidum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5996/0218/files/kuzazaladijuvenililogev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3624/5144/files/jefokajufexifesosar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2812/7654/files/zazipezawebevebizixax.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_off00006110.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6110 | 5700 bytes |
SHA-256: 4bdd7537c9702ba2eda0953cae84f963609dfead845603f9fd4515952edc14d3 |
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font_01_sfnt_off00007488.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7488 | 10024 bytes |
SHA-256: 3e0af1fabc2081ad2327dc7842b3bf288bcabb7890882e6d53bfe0499b5f7e1d |
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