MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Phishing.Trojan. The numerous embedded URLs and link farm indicators suggest a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://chcial.ru/uplcv?utm_term=strabismus+amblyopia+adults
- http://praconsulgroup.ru/pict/file/tiseliwevigewi.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080272c4ad97---46989464625.pdf
- http://architettoangeli.it/userfiles/files/xebamapufexaromuxobeso.pdf
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/ndk4jd6a1it7f44of0eeo5jhip/7240950652.pdf
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b97731a15f2---21044231555.pdf
- http://uni-farm.pl/ckfinder/userfiles/files/12717706544.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094858ed614c---58747582819.pdf
- https://almuhja.net/ckfinder/userfiles/files/gexibokawidalizepenisu.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b63816542d2---tevawozoduj.pdf
- http://thetownsendfamily.net/clients/a/ab/ab79602242cca8f930cd52af13df1d51/File/ralonogovapa.pdf
- https://nazragame.com/calisma2/files/uploads/zijozoru.pdf
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/e3c1b3e89ba719aa12e601eb7c89dbcf/36703579964.pdf
- https://aprilboya.com/userfiles/file/kimanepug.pdf
- http://kristenpell.com/userfiles/files/79127291634.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16090106a21f73---bodikajejigesilini.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160aaff8ce4806---97371534075.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a4200988269---27189776880.pdf
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/ud52j2ms3huegqsi57ngl6vvqf/funigajasumewigapem.pdf
- http://broadviewlibrary.org/uploaded_bvlib/file/76036244996.pdf
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/taftsa2o2pcj9cm4jkptjrcvv2/sekukugimaxododakidubaso.pdf
- https://nguoixunghekiev.vn/userfiles/file/damesigi.pdf
- https://subarini.ro/mm/file/22972352769.pdf
- https://mangmalungtea.com/userfiles/file/52897659312.pdf
- http://rgn2u.com/userfiles/files/55361248199.pdf
- http://sieuthibongda.net/ckfinder/userfiles/files/60192930774.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_off0000f5ce.binc4053fb300b809b853f689a7ff082ee58c070a0c1fc20fc0c064b71ffb2c850e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5CE | 10748 bytes |
font_01_sfnt_off00010e48.bin485df85b700e77d84653d7078da83701160fdd7a0c6a97b36724b47a9ca4f43a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E48 | 16640 bytes |
font_02_sfnt_off00013952.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13952 | 16792 bytes |
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