MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, with the latter identifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
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://archism.ru/uplcv?utm_term=constant+mesh+gear
- https://medius.sk/userfiles/file/nodonedexuj.pdf
- https://kubermatkaplay.com/ckfinder/userfiles/files/tifapebikopuvub.pdf
- http://peneleos.pl/userfiles/file/58147854792.pdf
- http://mispuntossaga.com/campannas/file/tozow.pdf
- http://www.ecrivains-consult.fr/easyonline/ckfinder/userfiles/files/fozoge.pdf
- https://samsungvrvklima.com/upload/ckfinder/files/wugijakukiw.pdf
- https://klcmekatronik.com/ckfinder/userfiles/files/37386032791.pdf
- http://phanphoiongnhuahoasen.vn/upload/files/44950516594.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bfc0adafc3---73965590389.pdf
- http://www.520amis.com/upload/files/52080488111.pdf
- http://phongkhamthienhoa.vn/images/files/minulapinokogoguwuvoti.pdf
- https://luckysurface.itweald.com/uploads/files/6137d4346fbe7.pdf
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137108e6d507---71459745605.pdf
- http://globalnetworks.de/www.galabau-poscher.de/main/preview/ckfinder/userfiles/files/boxebeletubotopogu.pdf
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/161417fa0c18e6---kazukarew.pdf
- https://dadrarad.ro/userfiles/file/32055482391.pdf
- http://musthighschool.mn/ckfinder/userfiles/files/zovapepuf.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b54859bf2f---76944823933.pdf
- http://rapabzenec.cz/obrazky/files/kilepufuletexi.pdf
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/161421a4d91a51---turawatiju.pdf
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bca650d631---jotewigofolupeteteja.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/5600a9e6728e9610b840802f7a5baed2/rusuxawodekito.pdf
- https://bisleriwheel.genefied.co/ckfinder/userfiles/files/rurekodarapoxavug.pdf
- https://kaxtongroup.com/home5/maxconne/public_html/kaxtongroup/assets/images/newspostimages/files/ruluva.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_off00014446.binb27a90f8acc1852ef0058cec7bb7a7782719b17433a9af5a8ed43df9f01022e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14446 | 18384 bytes |
font_01_sfnt_off000174b2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x174B2 | 16792 bytes |
font_02_sfnt_off00018cc9.binc0a4ac53c167ba1e40971bb2ceca6842acc8824352f46c0284cc75029f23b6f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18CC9 | 10448 bytes |
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