MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The presence of a PDF link farm and SEO redirector suggests an attempt to funnel users to malicious sites. While no scripts were extracted, the embedded URLs and the nature of the heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://gettraff.ru/123?utm_term=herzog+et+de+meuron+rue+des+suisses+archdaily In PDF document text
- https://cdn.sqhk.co/nuwobevina/2ghmVgg/64813038873.pdfIn PDF document text
- https://s3.amazonaws.com/fizaxo/business_plans_in_nigeria.pdfIn PDF document text
- https://mefogogid.weebly.com/uploads/1/3/4/6/134600117/kagogolapezomi.pdfIn PDF document text
- https://s3.amazonaws.com/goviwigax/advanced_excel_2017_tutorial_free.pdfIn PDF document text
- https://cdn.sqhk.co/lixozimiz/Wgciaia/murem.pdfIn PDF document text
- https://cdn.sqhk.co/giganopof/hjjjhcH/debudewidixunoti.pdfIn PDF document text
- https://cdn.sqhk.co/nejajevafode/1Cz0xeu/wirex.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/f1b81a92-3a1e-4446-a402-b42533a16f46/verbs_that_start_with_letter_v.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f91ec5ed-5f59-416d-966f-d498b7754088/skeleton_waiting_for_approval_meme.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/785fd17c-d90a-457f-a0d0-d8a6975a31aa/2522404216.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f19db431-1393-43de-b421-6f4a9ccbd249/98298751380.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/99f4c5c1-cc03-4b8e-a500-1bc6c375d1a4/jepibivexawi.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00015a7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15A7F | 5464 bytes |
SHA-256: 16be5d75904e8fbb37306195101a96456142b7bee7a863910f595945cf47614d |
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font_01_sfnt_off00016cf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16CF6 | 2404 bytes |
SHA-256: 7a6c0cc2e8e0c0e7e4f20de5cf3a6120aa49613d38334657b02bfecc5d3d5eb3 |
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font_02_sfnt_off0001767d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1767D | 13792 bytes |
SHA-256: d628a098cc4c181c1fdf95a5537181807aeca504d4dc39beeef7b35e7f705e13 |
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font_03_sfnt_off0001a15f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A15F | 16204 bytes |
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e |
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