MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Numerous embedded URLs were found, with several pointing to compromised WordPress upload directories, indicating a phishing or redirection attempt. The document body was unreadable, but the heuristics strongly suggest a malicious link farm designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://sbsoftware.ro/admin/userfiles/file/96202263018.pdf In PDF document text
- http://driver-jazda.pl/upload/file/tazujuluxoputimoma.pdfIn PDF document text
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609870fc9a3d8---bosuw.pdfIn PDF document text
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6bdeba90a---wofukamividineduduz.pdfIn PDF document text
- http://svsteinfurth.de/radsportfiles/file/24533163239.pdfIn PDF document text
- http://golden-candies.ru/webroot/files/files/40294509055.pdfIn PDF document text
- https://idd.no/ckfinder/userfiles/files/6933199088.pdfIn PDF document text
- https://xn--80aaijzh9b.xn--90ae/documents/file/gugulujivolilat.pdfIn PDF document text
- http://muacuoi.vn/Pictures/files/wubegijawepanixo.pdfIn PDF document text
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abfc0b3fb51---xefit.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b52e11cf7d---48808887000.pdfIn PDF document text
- https://moscowfashion.net/content/xuploadimages/file/mamekurabidijij.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/62506h0lf5mvn9uddkn5e4aten/17398090096.pdfIn PDF document text
- http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1c398594a---26085390308.pdfIn PDF document text
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/drf36ce8j3p32i829ej6mhpu20/gojake.pdfIn PDF document text
- http://barcelonasixtytwo.com/userfiles/file/pozujafijeseresu.pdfIn PDF document text
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/fac7752ae72adc0d1dd95022c3f4937c/bofotanepuwuximipidazipa.pdfIn PDF document text
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/35eaebc921b638e39ce0ec2752e46488/jusepemepej.pdfIn PDF document text
- http://dostavkaturov.ru/files/file/bapijaginikuseke.pdfIn PDF document text
- http://brette-animation.com/userfiles/file/bipumagagon.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=tassonomia+nanda+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_off000131b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131B5 | 19368 bytes |
SHA-256: c081860be0d83c1a1064b02c3009878976074de5292269d4e413dda102c5e8d1 |
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font_01_sfnt_off0001639f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1639F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00017bb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17BB6 | 10248 bytes |
SHA-256: 409ea93e89eca4638be35e581b47a46de3cb4f3a53a39d39930b701bfe18f8a3 |
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