MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The heuristics 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate the document contains a farm of links pointing to potentially compromised or disposable hosting, designed to redirect users. The presence of numerous unknown URLs further supports this, suggesting a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 http://prefinancovaniehypoteky.sk/res/file/44882983222.pdf In PDF document text
- http://yuha.be/_files/file/pukejuwitenirodul.pdfIn PDF document text
- https://www.ijestr.com/ckfinder/userfiles/files/29952181618.pdfIn PDF document text
- https://vandolderskb.com/images/usr/dotometafekejekebilubif.pdfIn PDF document text
- https://imihwa.com/uploads/image/20210912/files/20210912040218.pdfIn PDF document text
- http://koyomisushi.com/uploads/files/1582607958.pdfIn PDF document text
- http://analhospital.net/file/files/48034884261.pdfIn PDF document text
- http://xlsferrosilicon.com/d/files/73516186004.pdfIn PDF document text
- https://www.borzabadi.com/ckfinder/userfiles/files/7703953370.pdfIn PDF document text
- https://praktijkbinnenstad.nl/file/zirofawudi.pdfIn PDF document text
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/de61fcc897e33cffb30d6d18abd424dd/27955394558.pdfIn PDF document text
- http://musicpark-live.de/userfiles/file/judadowananadidalolo.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/16133db96daeac---ledajejitenakek.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/pkkhoavp8qqej9vb4ot5gh3dp4/relurarinudofobotadiguk.pdfIn PDF document text
- https://tpk-m.ru/files/file/5466394844.pdfIn PDF document text
- http://twfbs.com/ckfinder/userfiles/files/mitelidixezesupelar.pdfIn PDF document text
- http://metabolitplus.ru/files/file/kajutemuwiraku.pdfIn PDF document text
- https://abcoegypt.com/userfiles/files/netuboniwuxa.pdfIn PDF document text
- https://bibliothequedesarts.ch/ckfinder/userfiles/files/dovodis.pdfIn PDF document text
- https://bio-obst-und-gemuese.de/userfiles/file/44358249274.pdfIn PDF document text
- http://digitalpolicycouncil.org/imagenes/file/62707454440.pdfIn PDF document text
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/243bp5kb99aqukcs8i6hvuvo09/46916467173.pdfIn PDF document text
- http://kommunikator.nu/demo/userfiles/file///buwemew.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=lire+un+pdf+sur+androidPDF 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_off0000d287.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD287 | 18972 bytes |
SHA-256: ba8181d4d26307aef67b02fc891203a837f6dd370b0253e9bfbdffe38bcd394b |
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font_01_sfnt_off0001022c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1022C | 10404 bytes |
SHA-256: 115815192de21c4b9b029a7a17a4cd5473731f1ab7a66a37ecbde2e803878bca |
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font_02_sfnt_off000119d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119D2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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