MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that lead to a redirector URL, disguised as a workout PDF. The ML classifier strongly indicates maliciousness, and the PDF structure includes numerous links, suggesting a link farm or phishing attempt. While no scripts were directly extracted, the PDF's nature and the presence of malicious redirector links point to a phishing or malware distribution scheme.
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=intermediate+calisthenics+workout+pdf In PDF document text
- http://files.caitlindemeyere.ca/uploads/1/3/0/8/130874612/df4d54550cb3.pdfIn PDF document text
- http://files.meridaanderson.com/uploads/1/3/2/6/132695629/4932697.pdfIn PDF document text
- http://files.mraducanu.com/uploads/1/3/1/4/131437806/4959444.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/1/0427/8845/4559/files/1445501413.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0355/8564/files/55779614625.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0645/2127/files/18940920731.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1905/7822/files/2926190562.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/2533/8265/files/all_formulas_of_maths_class_10.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6727/5424/files/win_zip_command_line.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8380/9443/files/dnd_5e_help_action.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6900/4190/files/74601483917.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6787/4207/files/78114920831.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6154/2054/files/probability_questions_with_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1910/7495/files/guia_autometrica_mayo_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/volibevupenilitiverodere.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8946/8328/files/xalajukame.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007240.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7240 | 5488 bytes |
SHA-256: 5c59f4387e27889d030d904c705481701dd4f583c3a6defdb8022f8bdc57c8ce |
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font_01_sfnt_off000084c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84C3 | 10612 bytes |
SHA-256: 15dc64c81c37cdfe206549fd5bff396c6f4a01e819c9b7a87362d02b2dbb1d6e |
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font_02_sfnt_off0000a931.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA931 | 16144 bytes |
SHA-256: c5b81f703ebddc697e6824868dcd306aba919aa4c1ec28f594a83a04df97872b |
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