MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1071.001 Web Protocols
The PDF contains numerous links to external resources, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution attempt. The 'SE_CLICKFIX' heuristic indicates the document actively tries to trick the user into running a command, likely to download and execute a second-stage payload. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/260878f75d668cfed28efe38692245b2/55031921854.pdf
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608818b4b49a2---begonojigidad.pdf
- http://studiomedicoveterinariobellucci.eu/userfiles/files/15007323862.pdf
- http://natpuedu.in/userfiles/file/tezugakepadafinujuse.pdf
- https://hantverkarenisandby.se/UserFiles/files/widuxiwefowaw.pdf
- http://yizhu580.com/ckfinder/userfiles/files/52836218418.pdf
- http://celcg.pl/uploaded/file/dudarigapenulosuxenomovi.pdf
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160f7d2203500e---zozivolunutukaluwuvu.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160a154d735424---59930564958.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c55b96165ac---mufunuvedij.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086ce4bb5739---10958773169.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16076ba9871304---55010598388.pdf
- http://immodraft.nrw/images/architekten_agentur_images_/file/walawobilasozabeziwenape.pdf
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8582413740---39749188698.pdf
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b2336492b4d---sulobawusitapadi.pdf
- https://cncostruzioni.com/userfiles/file/97924362300.pdf
- http://hindel-relax.ch/ckfinder/userfiles/files/22430775303.pdf
- https://takipcisec.com/calisma2/files/uploads/busefexakeperodidu.pdf
- http://yaqeen-eg.com/userfiles/file/suxedagotaligewamipada.pdf
- https://saatyapi.com/upload/ckfinder/files/tisediwimobojo.pdf
- http://globaltruthmediagroup.com/clients/a/aa/aa8380eac451876ae6ab993bf3a720d6/File/10366240089.pdf
- http://dgjst.com/upfile/file/linonagadarapokudesulet.pdf
- http://www.contal-farmer.com/uploads/files/53450488149.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/549d42c4ad5c96750a60b9b4e8082f68/99947210619.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=chisel+and+bits+mod+1.7+10
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ee6e.bin7b4954c38bc3d2b1066ba7bb2005eff2825a504d55be8bad029ba8e459bd84b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE6E | 17376 bytes |
font_01_sfnt_off00011bd3.bina013ce2342554bbd70a9f85285a6053b67e9b25eaba0dd22223cc179b1b1ea16 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BD3 | 16064 bytes |
font_02_sfnt_off000130e8.bin4b704b8394b3323c182f42e105f72d506c76126025641d8b6e235204bf166574 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130E8 | 10872 bytes |
font_03_sfnt_off000149e8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x149E8 | 16792 bytes |
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