MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting a link farm or phishing lure. The PDF structure and embedded links point towards an attempt to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/410ed57fa6eea37f3b74bd75952b5135/sagibapepelag.pdf In PDF document text
- https://media-get.ru/userfiles/files/98207579430.pdfIn PDF document text
- https://tl-systems.hu/files/files/nagopu.pdfIn PDF document text
- http://erfansari.ir/ckeditor/files/files/diredovuketoxetef.pdfIn PDF document text
- http://kientrucphatloc.com/upload/files/zaradusesutegurokafelexir.pdfIn PDF document text
- https://egf.tw/test2/images/file/wezokavugifigugotavedun.pdfIn PDF document text
- http://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/puxamibivemab.pdfIn PDF document text
- http://hobbstownis100.com/clients/6/66/66141d04a4341350d76ae3a38785cb5a/File/tuzovupirutegipakine.pdfIn PDF document text
- http://email-database.info/userfiles/file/gowovevitomofifokap.pdfIn PDF document text
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160d082a272acd---86084000659.pdfIn PDF document text
- http://fernandopelosini.it/userfiles/files/78620432132.pdfIn PDF document text
- https://xuantruongtech.com/images/ckeditor/files/rudilajupedorodiwesuto.pdfIn PDF document text
- http://pogotowienaukowe.com/Upload/file/rolotaruvixo.pdfIn PDF document text
- https://drnanemilk.com/tctt/sites/aaa/file/pizirojegegabo.pdfIn PDF document text
- http://hkalc.com/userfiles/71120779519.pdfIn PDF document text
- https://anmoul.com/userfiles/file/31836522075.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/i836le6hvia1r4595047banvvi/15829982898.pdfIn PDF document text
- http://solamsys.com/userData/board/file/64337064098.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16091f075295e6---59655277704.pdfIn PDF document text
- https://mcq-exambd.com/app/webroot/ckfinder/userfiles/files/76251516474.pdfIn PDF document text
- http://acecaalcoy.com/userfiles/file/62099643257.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b979c528a---buzarosi.pdfIn PDF document text
- https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/487c746f71aaca7214141353db64d761/28139671301.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=probability+of+a+complement+union+b+complementPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e081.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE081 | 19304 bytes |
SHA-256: b4a8e793644da26e476b3115adecd4f4a3693bab1168c231e1227b4f34794681 |
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font_01_sfnt_off000112ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112AB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012ac2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AC2 | 10828 bytes |
SHA-256: 02f2ba06ff9b88c72fad1ec9a563c011c9b1e2fb75e793477c079ffed607b98e |
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