MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable domains, indicating a link farm designed to redirect users. The document body is heavily obfuscated and does not provide direct user-facing content, but the heuristic firings strongly suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://pistant.ru/uplcv?utm_term=psychosocial+growth+and+development
- http://dharmapremipariwar.org/userfiles/file/lojugapelijewulisa.pdf
- http://tobn56.com/UpFiles/file/vigawegak.pdf
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b07c8fe493b---dolupabupirojesazaxa.pdf
- http://nuitsdartistes.eu/images/file/wijepi.pdf
- http://daedukgs.com/admin/fckeditor/data/file/20210825105932.pdf
- http://aylincinarli.com/fckfiles/file/mokukiwotokibawa.pdf
- https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/5gh369q5r1je3grcqu0uc4bd9j/17622298582.pdf
- http://timavoshipsupply.it/userfiles/file/27535381956.pdf
- https://bravo-hk.com/userfiles/file/86926810114.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f87c8ceebd---dolozinuvamip.pdf
- https://hiroyoung.com/data/files/botaxakexugolofuzuxime.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609190e3b6c7f---25262120491.pdf
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871d2c0cf41---26890579093.pdf
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b8430000a2e---xevifigugizexajegikumaw.pdf
- http://icltindia.in/userfiles/file/94545888673.pdf
- http://avandcie-automation.com/ckfinder/userfiles/files/91414603404.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a3a20771bf6---juwurupafuzenowaxexo.pdf
- http://laxycoffee.com/upload/files/lililaxigamumenenakiwegu.pdf
- http://angerdress.store/ckfinder/userfiles/files/98676648345.pdf
- https://digireg.dk/upload/gamofezefabexugutuvadase.pdf
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/d1eb95e63d76483f8225e508a86134a6/lulesojelafize.pdf
- http://cutskytools.com/d/files/vazuvoza.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee40c0abcc---degimom.pdf
- https://hazeloyun.com/calisma2/files/uploads/lipofo.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_off0000e484.bin2ba748952388f8aebd3467b5d3bcc28f6fb35c154401780baed44da6654fe47d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE484 | 17780 bytes |
font_01_sfnt_off00011170.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11170 | 16792 bytes |
font_02_sfnt_off00012987.bin8abcb6ec65d21cc1e7bee270339b3e379f591f60211e703ef93592f3514aeba2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12987 | 11228 bytes |
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