MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to a redirector service at 'ttraff.ru'. This service is associated with malicious activity and likely serves as a gateway to phishing or malware distribution. The document body also contains the same redirector URL, reinforcing its malicious intent. The presence of a 'Download Now' button lure further supports a phishing or social engineering attack.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=convert+pdf+to+jpg+online+free In PDF document text
- http://files.rosevilleacupunctureandmassage.com/uploads/1/3/0/8/130814926/25d6afd7.pdfIn PDF document text
- http://files.musiclink808.com/uploads/1/3/2/6/132695384/49e1d.pdfIn PDF document text
- http://files.arisecoalition.org/uploads/1/3/0/9/130969478/vexug.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/1/0434/6619/5106/files/65404290350.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1356/2787/files/ernest_cline_armada.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/nokelepunuzonidavipakikef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1943/6185/files/tagalog_to_english_translation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4274/3207/files/54035420651.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4774/6721/files/87466292481.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/5965/5335/files/most_important_banking_awareness_questions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1079/1323/files/adeptus_custodes_rules.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3826/0899/files/63362624425.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0323/1903/files/3841961332.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4931/2666/files/menatejivuso.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_off00006857.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6857 | 4860 bytes |
SHA-256: 4396cd614e6de2f2072a72661db12b94db2a9948b04d71718c63e24c9d63fc38 |
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font_01_sfnt_off00007905.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7905 | 10052 bytes |
SHA-256: cb2bd6f23bbbf0f22bd404378829021256641b66f0efd5a00574011151668b6a |
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