MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier with high confidence. It contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute malicious content. The presence of embedded URLs and the 'QR-code redirect lure' heuristic indicate a likely phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612f48444d9f5---labuno.pdf
- http://qualityfirstservices.pro/testingsites/advantage_aviation/assets/media/file/xufugiduvodufuripa.pdf
- http://ventmetal.ru/userfiles/files/92013343941.pdf
- https://mallarpurnaisuva.org/go/file/83119674938.pdf
- http://www.hgbehringer.de/img/files/files/sodudujisawifepirup.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/hpn0uha4tk4do6fi1m8e1fkjj0/mejupilogudebo.pdf
- https://etevent.itweald.com/uploads/files/61493efad659a.pdf
- http://jysfh.com/upload_fck/file/2021-10-1/20211001001125893675.pdf
- http://ohappy.org/userData/board/file/javizerufexesele.pdf
- http://www.mustwalge.ee/data/content/files/zekamumipimujuzijodafepo.pdf
- http://donovaly-ubytovanie-safran.sk/web/userfiles/file/84246503661.pdf
- https://namdolove.com/FileData/ckfinder/files/20210905_15F5C47DF9C525AA.pdf
- http://pijntherapie.be/uploads/files/vujavabuv.pdf
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/f6ff930c66155b4126bceff9d0648f67/dukujesalidonifi.pdf
- http://ghalemdi.com/userfiles/file/2130933729.pdf
- http://clinicaveterinariaalbese.eu/userfiles/files/vivovirunisigex.pdf
- http://jts-electrical.co.uk/ckfinder/userfiles/files/33734370722.pdf
- https://dragonexpressml.com/userfiles/files/52948797673.pdf
- http://skene.es/userfiles/file/92018712617.pdf
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/41895d0f5029777d3a3bc729d29d4bb4/85557020343.pdf
- https://confetti-seasons.ru/upload/files/bisubetiwefazez.pdf
- https://lasanisports.com/files/50088424661.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/l520i5vbgpga37pfbp0141slj1/92587532995.pdf
- http://sanyosushiglendora.com/uploads/files/zunexogukozorirakum.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=wifi+qr+code+scanner+apk
- 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_off0000b3ab.bin96fa94b3958e47b60e9069f88ea2b0562add759a94a6fac26c056bc55434cf54 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3AB | 10700 bytes |
font_01_sfnt_off0000cc21.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC21 | 16792 bytes |
font_02_sfnt_off0000e433.bin6564923b187ed307e8b7811376bcbaee2f3c226a708df71833b8b04c6c8d1217 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE433 | 19012 bytes |
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