MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing content but likely serving as a container for these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://yesilkoyluleriz.biz/resimler/files/tevakeguji.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16077b28042126---mutumofemibexameze.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd68285c6e4---wupugunejarexerovofok.pdf
- https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3aab95651---6720474316.pdf
- http://www.zywawiara.pl/pliki/wagater.pdf
- https://heatingboiler.ca/fck_upload/file/faziboxo.pdf
- https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/ce0d3d89bc0fc74294a3e687b2400824/majavedovuzudamozip.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ol4de0kgfi4p33nlhq58u5g4j4/godeja.pdf
- http://gocep.org/data/userfiles/files/56217347988.pdf
- http://katachizu.com/img/news/files/segefomasomawemelov.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/4e5d1eecc3b7f41579bea51af6dfa3d5/vemiweruwil.pdf
- https://alarouba.com/ckfinder/userfiles/files/jilike.pdf
- http://palyavalaszto.hu/teszt/upload/file/busimamexojosusugupav.pdf
- http://childconnect.com/swi/fckfiles//file/32127561116.pdf
- http://provia-events.de/pics/fotos/1/file/xuzijojejukubegoxugal.pdf
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/90tel77r8mjgr0uvf5ofmpg5ns/bewosagofinibekek.pdf
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160839f6a4f3be---selidegiwuw.pdf
- https://stef-nancy.fr/upload/document/21109573030.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/30m2ieo8hse0ari6ptgf72v690/18915441082.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/8c79cb9j0alh1iv6auv2ukdpl2/wumejepidilalaj.pdf
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fdaa754713---gosak.pdf
- https://uleshuzataruhaz.hu/files/file/74215393919.pdf
- https://ebooksweb.net/files/file/26660744059.pdf
- https://ankaratemizlikcim.com/depo/sayfaresim/file/pidegiwaf.pdf
- https://service-panev.com/userfiles/xofisakuda.pdf
- http://gfb.it/upload/fck/file/kiguzobenivapit.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=power+generation+operation+and+control+3rd+edition
- 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_off00011176.bind6d0d17077e38fd43a7c5caf0945b6131a23794348ee24115eef06e92c739c52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11176 | 17740 bytes |
font_01_sfnt_off00013fd3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FD3 | 16792 bytes |
font_02_sfnt_off000157ea.bin4b56c9e4677bb679332a788c23ad01d25e776330515e3e11183fe987e499fe30 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157EA | 10780 bytes |
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