MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to this redirector. The presence of a large number of external PDF links suggests a link farm or SEO poisoning attempt. The ML classifier also strongly indicated maliciousness.
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.ru/pify?keyword=tibetan+singing+bowl+music+deep+meditation In PDF document text
- http://files.mutiny-cannabis.com/uploads/1/3/0/8/130813301/3998859.pdfIn PDF document text
- http://files.dcscorpus.com/uploads/1/3/2/7/132712447/dibuvatinonogot_kutipubeb_zofixozaf_vavipazowe.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/1/0431/0849/9618/files/vemaserabetet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/5353/4632/files/31067147433.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5443/0368/files/2726045594.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70686619693.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2444/7638/files/gmp_guidelines_for_pharmaceuticals.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0465/5762/6518/files/8928657627.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5210/5881/files/aptitude_questions_and_answers_for_accenture.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8921/5129/files/42178201665.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8108/0725/files/nusuwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0464/1344/7336/files/audio_recorder_pro_apk_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9423/7589/files/vujuxakafetuzixobovugo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5122/9089/files/wozidowapamuzefupufuvab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8741/9806/files/89315543433.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1677/4054/files/77677208666.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006b42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B42 | 3396 bytes |
SHA-256: 9542a116d138b265c4882f9113d19e3c4f43916f31be220c94b7e8e87dc6e563 |
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font_01_sfnt_off00007768.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7768 | 5480 bytes |
SHA-256: 98354a9bced90fd6db0dd833eeb69ed539e9d0287a6e334f33301e4214e8f11a |
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font_02_sfnt_off000089ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89FF | 10352 bytes |
SHA-256: 4a85230cd01faf37b87434dacb213a1a7b3a22fc4eda833c647da238be33e2ed |
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