MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable hosting domains. These links likely lead to phishing pages or further malware downloads, consistent with a malicious PDF lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://krisoc.ru/uplcv?utm_term=how+do+i+find+blocked+callers+on+my+iphone PDF link annotation
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/3d9e6f46d9010af35b5877065801e52c/1496992398.pdfIn PDF document text
- http://avsa.org/sites/default/files/images/files/vojon.pdfIn PDF document text
- http://www.mediagrand.hu//data/editorfile/26119161574.pdfIn PDF document text
- https://saatyapi.com/upload/ckfinder/files/24020016562.pdfIn PDF document text
- http://cukierniabrzezinski.pl/www/artizam/fck/file/83084401460.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/pac67oemsr87q9tml6uqks3f23/resudogemu.pdfIn PDF document text
- http://eco-versute.com/app/webroot/ckfinder/userfiles/files/zofalosodosozobe.pdfIn PDF document text
- http://iaestedresden.de/userfiles/file/64209781813.pdfIn PDF document text
- https://people11people.gr/uploads/File/90183640618.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a54f9cbe068---boputewusowojonotiri.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d672a726c5---22265115153.pdfIn PDF document text
- http://nuraski.pl/wsg/userfiles/rizolel.pdfIn PDF document text
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160780894330bf---wamejamagafokifuleximi.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075aaea80253---35088935159.pdfIn PDF document text
- http://yachtandgulet.com/userfiles/file/razusekop.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/8ad5611718d480763a4cf3e13f6e07b6/japubujoxug.pdfIn PDF document text
- http://marthomaiticherukole.com/userfiles/file/69093424244.pdfIn PDF document text
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/61iadgvfuqrd2ke9o5cdpucmhi/9356913777.pdfIn PDF document text
- https://prestinireedcorp.com/userfiles/files/jetifakatepava.pdfIn PDF document text
- http://haohanlegend.com/Uploadfiles/files/38923855721.pdfIn PDF document text
- http://gpszone.hu/upload/userfiles/file/nudov.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://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_off0000e061.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE061 | 11208 bytes |
SHA-256: 810548615130459b854ebf047614bc103ba5111ad95f13ab959fb63ce2bf0238 |
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font_01_sfnt_off0000fa33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA33 | 16772 bytes |
SHA-256: baf67c52592f2e62c01a653604aae961b1263b4145863bb5e360d52e75b0f928 |
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font_02_sfnt_off000125d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125D0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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