MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=application+letter+sample+pdf+free+download'. This URL is presented within the document body, suggesting a social engineering lure to trick users into downloading potentially malicious content. The presence of numerous other links, many hosted on Shopify, indicates a link farm designed for SEO manipulation to attract unsuspecting users. The ML classifier also 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=application+letter+sample+pdf+free+download In PDF document text
- http://files.interactivetutors.hk/uploads/1/3/1/4/131454816/xukasawewopegib.pdfIn PDF document text
- http://files.manilajiva.com/uploads/1/3/2/6/132695302/489bccbf825.pdfIn PDF document text
- http://files.meandyouspa.co.uk/uploads/1/3/1/8/131871704/4a0b0fe51a.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/1/0428/8918/3398/files/19170511541.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7079/8489/files/tezafimewapagefufamev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3118/3016/files/calculus_textbook_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1240/7967/files/jatavawowowogo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0097/8853/files/centurion_d5_evo_gate_motor_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6180/4198/files/8732852178.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5560/4134/files/ayurvedic_upchar_in_gujarati.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9722/6402/files/tojijutejabusekope.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9442/4232/files/71095322486.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4346/9974/files/66781486299.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5166/3012/files/kitubesuponidexapasu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5127/0815/files/bcps_calendar_2020_19.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_off00006118.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6118 | 5384 bytes |
SHA-256: 081def8481e69b1073704328407909d9018233aa5a2af8f7ccacf3cfba6f171e |
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font_01_sfnt_off00007353.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7353 | 10572 bytes |
SHA-256: 38d07fce15893b016f1bbb6aa937a5741c41ce37116762fbd13c57a6698a9cc9 |
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