MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly indicate a link farm designed to distribute malicious content. The ML classifier and ClamAV detection further support its malicious nature, likely as a phishing or malware delivery mechanism.
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://pistant.ru/uplcv?utm_term=60+seconds+android+apk
- http://kasargod.net/uploads/file/kipojonozimodofowagerale.pdf
- https://mklaassen.nl/images/file/3045036161.pdf
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/444ebe920744104266636479672654d3/45041086250.pdf
- http://dailycan.com/userfiles/files/8902975750.pdf
- http://bouwbedrijfansing.nl/userfiles/file/lexudaxivu.pdf
- https://mongolia-volkslift.com/uploads/files/75167082285.pdf
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/fd073ebef36da4db7c483eb945d9dc15/73293337657.pdf
- http://agama-rc.com/upload/files/1156696718.pdf
- https://usssecuritate.ro/userfiles/file/42189173946.pdf
- http://www.gieskestukadoors.nl/ckfinder/files/files/63661112865.pdf
- http://a1-automotivegroup.com/upload/files/43545147279.pdf
- http://titusauto.hu/kepek/file/12651252927.pdf
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/f39d0e4da9b3c9a652ad8c90ad3935a6/43833200803.pdf
- http://net-work.cz/data/file/panavekuvazifo.pdf
- https://ngoctraithaibinhduong.com/uploads/news_file/jiluw.pdf
- http://www.galiantsolutions.com/emailimages/file/76092790207.pdf
- http://gemculture.com/userfiles/file/4350132944.pdf
- http://kanalizace-ul.cz/userfiles/file/wumasisara.pdf
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16132f40b0ac32---fezojasolijelenisokejijiv.pdf
- http://dobrejaja.com/Upload/file/wobipijome.pdf
- http://papienbanana.com/user_file/file/sujufikolulukixirovisewi.pdf
- http://cablexconsulting.com/Upload/file/dazegixatejaxuvimokival.pdf
- http://learningkey.org/userfiles/65495469739.pdf
- https://institutdesante.org/userfiles/file/netiretosuserumufogikuwok.pdf
- http://sunil.kr/uploadfile/fckeditor/file/51685672415.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_off0000e88f.bin3f210b6fe9d0d0e508f74d6a4d008156c3788d47060c438a9b3a384f89eca885 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE88F | 20968 bytes |
font_01_sfnt_off00011f1c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F1C | 16792 bytes |
font_02_sfnt_off00013733.bin21dcb4871e605bb70cc48f16ed6d1b21863a1280f42375a5680e2253e0352bd2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13733 | 10648 bytes |
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