MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, with a critical heuristic identifying it as an SEO link farm and a high-severity heuristic flagging it as an image lure linking to an SEO redirector. The primary redirector URL is 'https://xajibur.ru/123?utm_term=how+do+you+simplify+like+terms'. ClamAV also detected this file as 'Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0', indicating a phishing or trojan payload. The ML classifier output of 0.999785 further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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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External URI info PDF_URIPDF contains an external URL action
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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://xajibur.ru/123?utm_term=how+do+you+simplify+like+terms PDF link annotation
- https://static.s123-cdn-static.com/uploads/4386848/normal_5fcdc0f343d62.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490375/normal_5fd9686b0e4ce.pdfIn PDF document text
- https://gokejubekilebu.weebly.com/uploads/1/3/4/3/134376129/5591369.pdfIn PDF document text
- https://fumeseteno.weebly.com/uploads/1/3/1/4/131483149/2285757.pdfIn PDF document text
- https://xabonawof.weebly.com/uploads/1/3/5/9/135965837/b83c1f09d.pdfIn PDF document text
- https://vefurubaturuxal.weebly.com/uploads/1/3/0/7/130739777/nuwiwuxegexu.pdfIn PDF document text
- http://rimka.xyz/safiwosozu9gf15.pdfIn PDF document text
- https://komomofuxuz.weebly.com/uploads/1/3/4/4/134494735/sibosiditivaza.pdfIn PDF document text
- http://prizinsta24.site/70437050235nds3k.pdfIn PDF document text
- http://sputnews.com/arsene_lupin_contra_herlock_sholmesf982g.pdfIn PDF document text
- https://diwijavel.weebly.com/uploads/1/3/4/6/134691177/7447871.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379482/normal_6031741e2fd0a.pdfIn PDF document text
- http://bonus332.site/pimaladamivolofoligmzafj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458833/normal_600bab512e7b4.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/janodojivi/chutney_recipes_in_tamil.pdfIn PDF document text
- http://xidozine.rf.gd/figowawem.pdfIn PDF document text
- https://s3.amazonaws.com/ganubifirigevi/85676099344.pdfIn PDF document text
- https://s3.amazonaws.com/wizidimawag/43677983986.pdfIn PDF document text
- https://s3.amazonaws.com/bivanud/employee_attendance_management_system_project.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_off0000fcc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCC4 | 4972 bytes |
SHA-256: f6cc302edb432490048d61bca8e51ca5f6d81656698ca6e3d9cf75783d9c2045 |
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font_01_sfnt_off00010dca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DCA | 9920 bytes |
SHA-256: 3efe004acb1faa04e303ea22293cba21780337d09583bf23f66bdf8fd8ac6e4c |
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font_02_sfnt_off00012fd4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FD4 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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