MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with several URLs pointing to compromised or disposable hosting, suggesting a phishing or malware distribution scheme. The PDF structure and embedded links are consistent with techniques used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://lpsa.cz/userfiles/file/wafuvubizudumelobijav.pdf In PDF document text
- http://krajinar.cz/soubory/files/42543997364.pdfIn PDF document text
- http://barrospizzadb.com/uploads/files/mupefulejo.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/35d5eeb8212d19451bd926252541e2c6/20208691098.pdfIn PDF document text
- https://m-isc.com/userfiles/file/18782335063.pdfIn PDF document text
- http://tevukasveza.lt/ckfinder/userfiles/files/wigadugotaraziburo.pdfIn PDF document text
- http://moje-stranky.eu/userfiles/file/98257186356.pdfIn PDF document text
- https://iphonerepairservice.nl/app/webroot/files/userfiles/files/30671587340.pdfIn PDF document text
- https://ags-car.60km.com/upload/files/82189942307.pdfIn PDF document text
- http://cbestdesign.com/ckfinder/images_store/files/sililanozojarulu.pdfIn PDF document text
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/f1e2f6a45791432909bd5d5a6339fc24/38298729904.pdfIn PDF document text
- http://startmatbaa.com/userfiles/file/kizovifanoxenupema.pdfIn PDF document text
- http://t-eamplus.de/web/editor/files/65120600909.pdfIn PDF document text
- https://easresidence.ro/app/webroot/files/userfiles/files/wikujugunavunake.pdfIn PDF document text
- https://oasis-travel.ro/files/xiwumuxudu.pdfIn PDF document text
- http://kiuanai.com/userfiles/file/7582031912.pdfIn PDF document text
- http://kunmobile.vn/files/uploaded/20210916/file/52209431763.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16142669f926d6---20431730740.pdfIn PDF document text
- https://brukspec.pl/upload/file/13083107246.pdfIn PDF document text
- http://studiolaviano.it/userfiles/files/rujugalopuzi.pdfIn PDF document text
- https://gtijsr.com/userfiles/file/fejijofogetonafinimagu.pdfIn PDF document text
- http://bukharaatlanta.com/sites/default/files/file/5843335075.pdfIn PDF document text
- http://highdeal.linkeo.net/ckfinder/userfiles/files/gaxajajevolosebuf.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=future+tenses+pdf+exercisesPDF 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_off0000ca98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA98 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e2af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2AF | 10464 bytes |
SHA-256: 0999f560283a135931bad3c120adf2fc25a6b972a53bd47e39602031154ca259 |
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font_02_sfnt_off0000fa90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA90 | 17624 bytes |
SHA-256: 5ed46b7c525ba888c99a49928b799c9fce3f677d34d570ff277fd519ed07c4d4 |
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