MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as Pdf.Phishing.Trojan. The numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, indicate a link farm designed to redirect users to malicious content. The primary attack pattern involves luring users via a malicious attachment to sites that likely host phishing pages or further malware.
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://inwebjor.ru/uplcv?utm_term=slope+of+a+line+from+a+graph+worksheet
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/00e0ee2b689e014c1e06c089a06210a0/linigumobel.pdf
- http://1parareunion-club.com/clients/4/48/482fc251494624b09083a87f212a12d7/File/68083641029.pdf
- http://blpest.com/UserFiles/file/38639735930.pdf
- http://eventologia.com/userfiles/files/sazudurewupimav.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e8899cbb42---kenexixuxokenogolojovoji.pdf
- https://www.rockfallco.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8e1a18b7d---27648227279.pdf
- http://simonhoirup.dk/userfiles/file/vizuritizisi.pdf
- https://carea2plus.com/wp-content/plugins/super-forms/uploads/php/files/315413e723c6485e3406ab068b4b2e09/35812239139.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/d97jqj0t3fefa2kfrf37ols045/bajavup.pdf
- http://norview63.com/clients/5/59/59ba6e1aa7224642a1eeb14435756cbf/File/mubosogig.pdf
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d279dd062d---34299215624.pdf
- http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/36ba2e6484ea1bcee7a211e88087ee8b/lipalejibisabiridedew.pdf
- http://provia-events.de/pics/fotos/1/file/16050072028.pdf
- http://hevolta.com/upload/file/31654408409.pdf
- http://jpbullies.com/clients/2/2c/2c827f09d77a589c2c5c7da8c033a3f4/File/sowebovuxokivumulo.pdf
- http://al-bandak.com/userfiles/file/53115175195.pdf
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/5b7291e0cc3782db2356a4db21850517/35542145197.pdf
- http://manavpublicschool.org/manav/userfiles/file/42325342980.pdf
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/09a80030ecedb4606620f6ebc361202b/30143312012.pdf
- http://szkolka-wiercioch.pl/files/file/61333465994.pdf
- http://zonwering-belgie.com/ckfinder/userfiles/files/58397148182.pdf
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c3495df6c2---zavatiripekuzu.pdf
- http://fitviewer.biz/files/file/lufikajidixasusizoragusoz.pdf
- https://congchunghadong.com/uploads/files/dafivo.pdf
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f872f8a12c5---53027941273.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_off0000f013.binb4f62281396992096fc1b50da5d4f673214c9e1ff05c50c699703dbf5c9aa146 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF013 | 18344 bytes |
font_01_sfnt_off00011fd0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FD0 | 16792 bytes |
font_02_sfnt_off000137e7.binb129384d99cc97b0278ff64cb413784c85bab76d8af8fea5e45048f3a9d4c9d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137E7 | 11056 bytes |
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