MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or are part of a link farm hosted on disposable domains. This suggests the PDF is designed to redirect users to malicious or phishing content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://medica-eg.com/userfiles/file/56609327217.pdf In PDF document text
- http://sarkar.ie/userfiles/file/natasulabevimuje.pdfIn PDF document text
- http://mbjarrahi.com/UploadedFiles/New/file/77726995454.pdfIn PDF document text
- http://slstudio.it/userfiles/files/gagerenurawofajatajax.pdfIn PDF document text
- http://packamate.com/userfiles/45888118709.pdfIn PDF document text
- https://olterus.net/contents/files/45197678758.pdfIn PDF document text
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/r6v4n5r1a84nq6mlljb6u2lt36/19814906937.pdfIn PDF document text
- http://gurmanosypsnys.lt/userfiles/file/13007509424.pdfIn PDF document text
- http://salocchi.it/userfiles/files/zemivulugelabisixasiditu.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16152be1048251---komikukowesusenabetege.pdfIn PDF document text
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16158011b34272---rusor.pdfIn PDF document text
- http://thechelseaff.com/user_uploads/files/mumuzumifoxunurej.pdfIn PDF document text
- http://studiogeologicotrilobite.com/userfiles/files/38777447738.pdfIn PDF document text
- https://kluchar.net/klucharnet/images/file/zizivudowepuzidage.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e7ef1ceda6---94895438596.pdfIn PDF document text
- https://www.aukuras.org/ckfinder/userfiles/files/xesavevumokamapaxobuvos.pdfIn PDF document text
- http://ecolservizinettuno.com/userfiles/files/jobesagafiwim.pdfIn PDF document text
- http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/lesutuvowezik.pdfIn PDF document text
- http://potya.com/fugojotibotesivowemi.pdfIn PDF document text
- http://hoya889.com/upfile/files/20210914065222.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=rummy+pure+sequence+rulesPDF 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_off0000ae0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE0D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c624.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC624 | 10468 bytes |
SHA-256: 4ad6e551421bf1bc697c98fb4131a05eced70b74514ed0b0559a3cb555b6a0c6 |
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font_02_sfnt_off0000dde3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDE3 | 14876 bytes |
SHA-256: dd17d2ec7f1e6cd0f5432805a6b593f7e8c3ac7eb9fc871f587d5b434736ec84 |
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