MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and link farm indicators further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://gaia-onlus.org/userfiles/file/60206733000.pdf In PDF document text
- http://baocaosudanang24h.com/uploads/image/files/39430652399.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d8f52dc073---dujunupupuzumor.pdfIn PDF document text
- https://study-abroad-travel.com/ckfinder/userfiles/file/25098351240.pdfIn PDF document text
- http://topbondtape.com/uploadss/file/91234599498.pdfIn PDF document text
- http://ktcyy.com/ckfinder/userfiles/files/falamifosarudizewi.pdfIn PDF document text
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613c30ae8c3e2---xalesofilonevibukudo.pdfIn PDF document text
- https://owop.challengersports.com/userfiles/files/37619201016.pdfIn PDF document text
- http://ebslang.net/_UploadFile/Images/file/wefeguf.pdfIn PDF document text
- https://bandai-k.com/userfiles/file/tekavozikikokewikolim.pdfIn PDF document text
- http://newcityhk.com/userfiles/fixerolosu.pdfIn PDF document text
- http://jcbcharpentebois.com/ressource/site-image/files/ditararakuto.pdfIn PDF document text
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/mi0rqevln6mpme7bbdf3219i35/kazexosepilojit.pdfIn PDF document text
- http://eotp.info/sites/default/files/fck/file/83792226924.pdfIn PDF document text
- http://teplorium.su/userfiles/file/sozikebademipalutuviker.pdfIn PDF document text
- http://gdlianyu.com/uploadfiles/file/13355025668.pdfIn PDF document text
- https://pasifikendustriyel.com/userfiles/file/wovonok.pdfIn PDF document text
- https://sunsoftinfoway.net/ckfinder/userfiles/files/lipukosiv.pdfIn PDF document text
- http://school15-tyumen.ru/f/94725241465.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/669454e568000d815aa5bc37d3c848da/48271181271.pdfIn PDF document text
- https://poojaindiangrill.com/nbloom/fckuploads/file/vasewarakeduxek.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=nouns+exercises+pdfPDF 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_off0000bffd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFFD | 17164 bytes |
SHA-256: 4777247bd768e8769480a61c7339a72fbcf4d29165b88b2b289dd6791774deec |
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font_01_sfnt_off0000eca9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECA9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000104c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104C0 | 10484 bytes |
SHA-256: edad2b035f90c68ffbf0eaa662ff1a6e3049b41bfec1313145b14e68ddc3a686 |
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