MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users into clicking on further malicious content. The document body, though heavily obfuscated, contains references to a 'pilot aptitude test sample pdf' and multiple URLs, including the malicious redirector and a large number of benign-looking Shopify links, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious.
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.cc/pify?keyword=pilot+aptitude+test+sample+pdf In PDF document text
- http://files.floristatwork.com/uploads/1/3/0/8/130873951/5be709887da34e.pdfIn PDF document text
- http://files.thewaveindustries.com/uploads/1/3/1/4/131413837/a1b902b2.pdfIn PDF document text
- http://files.teachingcanadianliterature.com/uploads/1/3/0/8/130874253/befike.pdfIn PDF document text
- http://files.gamblefamilyquarterhorses.com/uploads/1/3/2/7/132741110/zojeluvod.pdfIn PDF document text
- http://files.paysprovencal.com/uploads/1/3/2/6/132683130/7c2a6e5982c26.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/1/0430/9961/9492/files/vukofemuxokuwexabiwiwalu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/0230/1349/files/postgresql_create_table.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4448/7836/files/coeliac_disease_nhs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0612/2393/files/rite_of_baptism_catholic_church.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6942/3269/files/lenevanenunoxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0378/1015/files/vexoxisaximemebu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5657/8206/files/wadadutetuxasesisamofavar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2812/5595/files/www._fedex._com_tracking.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1104/7575/files/application_letter_for_a_job_format.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3121/5774/files/80383957678.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8126/0440/files/faxijafijarutekilir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8198/0317/files/86923934987.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2314/6906/files/change_file_to_iphone.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_off00006a3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A3D | 5092 bytes |
SHA-256: d09dfa347863ea6b4e40ead5cbecd8ea615ac8aab0d6fdf7697776ae2bfdcb42 |
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font_01_sfnt_off00007b82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B82 | 10372 bytes |
SHA-256: b78c12521df51d231d697d3ffda58b64b8abd4b2474f701e18f90f728d855aec |
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