MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing or trojan variant. Heuristics indicate it functions as a link farm, with many URLs pointing to potentially compromised or disposable hosting, designed to redirect users. The document body is unreadable, but the heuristics strongly suggest a malicious intent to redirect users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://fallsplat.se/bildbank/file/belaxarutunelub.pdf In PDF document text
- https://artinterior.bg/userfiles/file/36395591714.pdfIn PDF document text
- http://perchegouet.com/ckfinder/userfiles/files/vagagajigixizufedovag.pdfIn PDF document text
- http://sial.pl/galeria/file/92854920684.pdfIn PDF document text
- http://affordableadobe.com/ckfinder/userfiles/files/5597794478.pdfIn PDF document text
- http://morpheus-architects.com/file_media/file_image/file/49180255878.pdfIn PDF document text
- http://sergeybazarov.ru/file/60610212164.pdfIn PDF document text
- http://oldadmin.k12cart.com/media/files/kigugawuzawuwugew.pdfIn PDF document text
- http://bukhatirhomes.com/userfiles/file/6747612619.pdfIn PDF document text
- http://gartenmessebau.de/uploads/files/21197585684.pdfIn PDF document text
- http://csc020.com/userfiles/file/20210905131829_fvf9sa.pdfIn PDF document text
- https://frontivo.ro/userfiles/file/vatuxozefisipebolu.pdfIn PDF document text
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613618b5bca79---wajovakixogo.pdfIn PDF document text
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/bf1d9fe967e259bd476a49ef1bf20c16/33261115826.pdfIn PDF document text
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/2f353070bb98dae47403964b79cfb85b/zoligijipatoropidaviz.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/161357ecb1c381---voviluwa.pdfIn PDF document text
- http://kystar.net/filespath/files/20210911060513.pdfIn PDF document text
- https://interstudy.net/userfiles/file/81602044358.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd981061dd---newemo.pdfIn PDF document text
- http://managhantasala.net/mailuserfiles/file/vosilo.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b39f75c503---18595754066.pdfIn PDF document text
- http://keystoparadise.com/userfiles/files/81731204649.pdfIn PDF document text
- http://freeware-software-download.de/uploads/editor/file/32938573457.pdfIn PDF document text
- https://baigiangtoanhoc.com/upload/files/17382790841.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=road+traffic+app+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_off0000e1ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1AC | 17104 bytes |
SHA-256: 7660410d86fb1836d98e21e02ec828d1196063c9c154d1c2cf096a8b88f8dfd1 |
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font_01_sfnt_off00010dfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DFC | 10312 bytes |
SHA-256: b34aaddb7f2fa1c62e5c68e26d319af33286bb072e3132806bc8f1406260e305 |
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font_02_sfnt_off00012551.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12551 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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