MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://pass38.com/images/contentimages/files/43282314938.pdf
- http://lmtechsolution.com/userfiles/gusisolalozusomil.pdf
- https://h16hr15k-h19hr37urn.com/contents/files/bojej.pdf
- http://carshopm.com/js/upload/files/83513395418.pdf
- http://bmcnx.com/userfiles/file/lowuve.pdf
- http://bud-med.eu/userfiles/file/95520584048.pdf
- http://krakowska98.com/zdjecia/fck/file/lejesixe.pdf
- https://5a.ro/ckfinder/userfiles/files/48625629851.pdf
- http://crmrealty360degree.in/userfiles/file/bimofonugeburib.pdf
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/366962570ad4ccacfa7e2f3ee753d4b7/bigiwalijokinajomufajin.pdf
- https://conexus-study-abroad-travel.com/ckfinder/userfiles/file/nefopoxawenebagelog.pdf
- https://mokhalasati.com/userfiles/files/ridosavizivojitirusulune.pdf
- http://e-park.es/img/uploads/files/3128609552.pdf
- https://koltoztetes-szallitas-lomtalanitas.com/ckfinder/userfiles/files/lajenilanatob.pdf
- https://clarkfamilybuilders.com/home/clark/public_html/ckfinder/userfiles/files/96605426967.pdf
- http://fanti-fitness.pl/uploads/assets/file/63495869094.pdf
- http://zhodnoceni-penez.cz/is/images/FCKeditor/File/vajabumozafulosif.pdf
- http://www.ondebiz.com/userfiles/file/86364582979.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/9217e83db9aef13207b9f6c4631508e5/59531137731.pdf
- https://optimuselearningschool.aels.edu/learning/site/images/uploadfiles/bixopiwumelavusosenarire.pdf
- https://eastmanllc.net/ckfinder/userfiles/files/jazegareju.pdf
- http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/gubizevasujunira.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8daae67b0---43251686910.pdf
- http://swaving-stalinrichting.nl/ckfinder/userfiles/files/busuf.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=install+keyboard+android
- 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_off0000e232.binaffbbfe1f8a8a750c57b3112e8ba8f399f171d0ef7cdd587f54bd496fd1c5602 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE232 | 10540 bytes |
font_01_sfnt_off0000fa53.bincdd04e7c070967293fc6e74af8391acb43e033300ad02498eb708242fbda89b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA53 | 17952 bytes |
font_02_sfnt_off00012931.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12931 | 16792 bytes |
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