MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, some pointing to potentially compromised CMS upload storage, suggesting a link farm or redirection mechanism. The presence of embedded URLs and the PDF structure itself are indicative of a phishing or malware distribution lure, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://bibonatura.hu/ckfinder/userfiles/files/47451437258.pdf
- http://harlit.com/ckfinder/userfiles/files/20210819_155113.pdf
- https://traffictkt.com/viking1/uploads/files/55951265123.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aae93b86860---92633835944.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a39a08789da---73500366180.pdf
- https://groupunsur2.com/contents//files/55024864925.pdf
- https://eledigitalpr.it/allegati/file/43392889122.pdf
- http://gerd-pollak.de/userfiles/file/79672197682.pdf
- http://apluskleaning.com/admin/images/file/pomizewebowix.pdf
- http://xn--oy2b9bv81anouola.com/upload/file/202108290459410391.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/72cc3f1213b40cc63bdb95b62198c3ef/8741768135.pdf
- https://dallaslandscapedesign.com/media/files/65526410410.pdf
- http://spartaksedlec.cz/spartaksedlec/userfiles/file/kerurome.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/da41c2b0b0b23f22a189d21c1dd27245/23454923128.pdf
- https://zzwgjx.com/d/files/7722838770.pdf
- http://mackielaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nobuxuzinoxonifino.pdf
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16079a556494ab---72984920078.pdf
- http://www.alfapilates.pl/upload/file/judelemorarodovex.pdf
- https://pet-fashion.ro/mm/file/71361830255.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c4fd5b012---tipovawarifa.pdf
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/edc0aa0336ac45e92270a449b9cfea25/finevezasoduxojapixulize.pdf
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/5b50eb858d7c68a17d6f71d62c712ec3/91660523620.pdf
- http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/xowenivudiruturuzikijafe.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=five+dysfunctions+of+a+team+summary+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fc57.bincc76061e0d8e569386b56f548082f134f315d9819488a483f45fe4aad2c1c8dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC57 | 17948 bytes |
font_01_sfnt_off00012a49.binaaa120c8a51762ed290b1dd6ef9e253b54cf082bf926ef8f20aedf11bee4c72e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A49 | 10992 bytes |
font_02_sfnt_off000143e1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143E1 | 16792 bytes |
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