MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and other domains, suggesting a link farm designed to redirect users. The presence of external URIs and a link farm indicates an attempt to lead the user to a malicious destination, likely for further exploitation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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://europartner2.pl/uploads/75842104954.pdf In PDF document text
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a89d2d806a5---tezejusogosojepibozojusi.pdfIn PDF document text
- https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/j0dls059ucld4sceth690tadnm/metuzunuluwagarodigu.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/f539c1101b6d91436c76006b4796ced5/45062149785.pdfIn PDF document text
- https://eyetracking.pl/userfiles/file/88103764952.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607b89b565d55---zumatofiludimozovunimere.pdfIn PDF document text
- https://abofahed.com/userfiles/file/zadisi.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1fb05d064---mudoxoxuranivubuf.pdfIn PDF document text
- http://andlupa.com/userfiles/file/jexewurevodexalupeb.pdfIn PDF document text
- https://uppersanduskyrotary.com/cms/files/File/sulemopijoleta.pdfIn PDF document text
- https://praward.tw/wp-content/plugins/super-forms/uploads/php/files/dea2dab303bff9e20bfbcdd89c34efe4/44519918061.pdfIn PDF document text
- http://adance0112.com/upfile/editor/file/53377674453.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/88c6e17de25c72e31b40e9f02451b86a/derekukezurofubefes.pdfIn PDF document text
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16090e60a48595---nidigufilovavexugivete.pdfIn PDF document text
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdce99449ae---88255228393.pdfIn PDF document text
- http://apple888.vn/luutru/files/juparevegoj.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160da39e185eef---12545392537.pdfIn PDF document text
- https://slide-bearing.com/d/files/zubifufipabedololen.pdfIn PDF document text
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/99069817c82d4d5ac4e9e4cd79d91f03/92668228672.pdfIn PDF document text
- http://mppscstudy.com/admin/usercontent/file/walitepizinotefeguzetok.pdfIn PDF document text
- http://ngor2-3.com/file_media/file_image/file/64814799772.pdfIn PDF document text
- http://transinfosoft.com/userfiles/file/73062196732.pdfIn PDF document text
- http://scheidenschiedam.nl/uploads//file/tivibapafarirapixer.pdfIn PDF document text
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/es9cr72it6tq301ngjn6lc95t7/bifalif.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/df9fsmi6ofb3n7j0lp7m973530/tixenijiba.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b08fa449347---zeras.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3s7i5ivm26991q8n6fp9919do6/bowunonedosexure.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=8+weeks+after+circumcisionPDF 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_off00010307.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10307 | 10840 bytes |
SHA-256: 5c43773df54396ca8cc066867336c7369611b93304ec51cc79432bc62f3e217a |
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font_01_sfnt_off00011c2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C2F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13441 | 17116 bytes |
SHA-256: 719f866c0096eaf3f25b1f96394a022c151b55181c73459adcf799fb9d149761 |
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