MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing attempt to distribute other malicious files. The primary redirector URL is https://ttraff.cc/pify?keyword=analogue+and+digital+communication+systems+pdf, which is also flagged as malicious. The document body, though heavily obfuscated, contains this URL and other links to Shopify-hosted PDFs, indicating a lure for users seeking technical documents.
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=analogue+and+digital+communication+systems+pdf In PDF document text
- http://files.phspiratescheer.org/uploads/1/3/2/8/132815045/182c55.pdfIn PDF document text
- http://revajeti.sandracowan.com/uploads/1/3/1/8/131872295/duvajeligoxef-viken.pdfIn PDF document text
- http://files.lindaheffler.com/uploads/1/3/1/6/131606392/niwizeja.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/1/0431/4343/0305/files/fubajilekolagadogeme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2156/5078/files/22263957632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2293/4435/files/99636485591.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1229/2767/files/31894359653.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jamitaribigonekadori.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3837/5074/files/jukirodos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1548/7137/files/enterprise_architect_patterns.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3667/1132/files/bugasizixomum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8079/4780/files/64033708271.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8797/0975/files/wesizerubogizena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8138/4604/files/tatugojolalipedekuvu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2846/3271/files/gm_to_m.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/3081/8461/files/pigoloj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4040/6684/files/xagarovabepuzawabepusex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7341/3028/files/zixofemelutonowa.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_off00006740.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6740 | 5472 bytes |
SHA-256: 7553c70d2bf28018023ee96f9e873c39b920a0c50092f6082977cb19f91a05c8 |
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font_01_sfnt_off000079d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79D8 | 10084 bytes |
SHA-256: ef7ca917f003648cf8676ed96e3ec8827ec50db205a266fffe00ec9dbfce4329 |
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font_02_sfnt_off00009c96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C96 | 17436 bytes |
SHA-256: 683adbfdd17c9989673e1b74ed29acad364b7f771a4b9943d9668b60876446db |
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