MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the document links to known malicious redirector infrastructure via the URL https://ttraff.ru/pify?keyword=aircraft+structures+engineering+students+pdf. The document body, though partially corrupted, also contains this URL and numerous other links hosted on cdn.shopify.com and various other domains, suggesting a link farm or redirection scheme designed to lead users to malicious content.
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=aircraft+structures+engineering+students+pdf In PDF document text
- http://files.jenniferblush.com/uploads/1/3/1/3/131380445/widiwa-jamot-xiniza.pdfIn PDF document text
- http://files.doggiedaycareconsulting.com/uploads/1/3/1/3/131384175/nolidevowa_dufuponalasini_bomudoto_togof.pdfIn PDF document text
- http://files.friendsmpl.com/uploads/1/3/1/4/131407459/cc6071.pdfIn PDF document text
- http://juwidil.stutteringtherapyaz.com/uploads/1/3/0/7/130776647/5ca6ea5abfd4.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/1/0430/6134/6466/files/72242633693.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1110/5191/files/agenda_2020_au.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rixaraxamixenapo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3555/0111/files/bosaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7950/7870/files/49920469970.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4245/6231/files/describing_personality.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3488/5789/files/15338547450.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4755/0119/files/gudimopuzizedufojifikifi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9735/0554/files/45172525872.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7237/0326/files/xozozatetevelezoge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6554/8708/files/43527873587.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3105/0915/files/jokixopejalevatanarexe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0058/6649/files/23455749078.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5774/9917/files/makalah_batuan_sedimen.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_off00004923.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4923 | 5280 bytes |
SHA-256: f9d57b3dfcb7479d7ce171daf5c77fff92c8dd29250e8ac2a68707de7302d969 |
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font_01_sfnt_off00005b1a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B1A | 9300 bytes |
SHA-256: e089cf91daf8bb5c523f2b6d6c360aa49c8b37af8f067bef11938ea83794bba1 |
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