MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file functions as a malicious redirector, leveraging a screenshot lure to entice users to click on a link. The primary malicious URL identified is https://ttraff.cc/pify?keyword=sound+of+applause+free, which is known to lead to malicious infrastructure. The document also contains a large number of links to other PDFs hosted on various domains, suggesting a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or malware distribution attempt.
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 36 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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=sound+of+applause+free In PDF document text
- http://files.amateursubiepros.com/uploads/1/3/2/6/132681928/buwis.pdfIn PDF document text
- http://files.willishallherald.org/uploads/1/3/0/8/130874204/nulaxexekuvale.pdfIn PDF document text
- http://pozuguwen.margaretmcgillivray.com/uploads/1/3/1/4/131483167/lopizofozi.pdfIn PDF document text
- http://files.lifewithsoosan.com/uploads/1/3/1/8/131859261/7749268.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/1/0431/7567/4024/files/84076249695.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8967/3888/files/82296405708.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vexib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/3266/9334/files/swing_low_sweet_chariot_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/8944/1447/files/2014_honda_crv_owners_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1826/4469/files/ereading_worksheets_text_structure_quiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6334/4280/files/55426169741.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2548/1379/files/advanced_development_economics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/3173/3159/files/22314242860.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4970/5881/files/457504336.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_off000059ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59AE | 5136 bytes |
SHA-256: 0e4571b025198e542acc050f6f084ba3858ebd3317f7b5db8dba212a5bff2fb6 |
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font_01_sfnt_off00006b32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B32 | 8196 bytes |
SHA-256: 6eb056c021bfe2613d43caabeb4f7e4981a2e0fa442c9ee678f53dcf0db2d42b |
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