MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm. Multiple URLs point to compromised WordPress sites and other disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, indicating a tactic to obscure the true destination of the links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://infrive.ru/uplcv?utm_term=tower+heist+full+movie+online PDF link annotation
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e365c65ad---zasufapeg.pdfIn PDF document text
- http://testplanet.nl/uploads/files/43739956599.pdfIn PDF document text
- http://mail-ex.net/userfiles/file/kikobidovawegaropuj.pdfIn PDF document text
- https://botroul.be/uploads/lizezozagadif.pdfIn PDF document text
- https://www.ijmsir.com/ckfinder/userfiles/files/79051816712.pdfIn PDF document text
- http://perfect-aerosol.eu/userfiles/file/36219576955.pdfIn PDF document text
- http://wmc21.com/ckupload/files/wamunogabep.pdfIn PDF document text
- http://cungcapbaoduongcuanhatban.com/upload/files/xafexo.pdfIn PDF document text
- http://artwatch.ru/userfiles/file/bejanogavuk.pdfIn PDF document text
- https://history.tlshaa.org.tw/ckfinder/userfiles/files/941247968.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/toveb.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/f9a5a639b26791b603ff4fbe98ea80f7/3390031202.pdfIn PDF document text
- https://mariellatriolo.it/public/file/zosuvojonikako.pdfIn PDF document text
- https://savitravel.ro/ckfinder/userfiles/files/98007693367.pdfIn PDF document text
- http://showpalmedical.com/userfiles/lemulawutifazojorara.pdfIn PDF document text
- http://vitacanes.com/uploads/files/48340481042.pdfIn PDF document text
- https://uangraja.com/contents/files/zuluber.pdfIn PDF document text
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/20609113a5203f06f45981fec1ea8beb/narutewepewemogalo.pdfIn PDF document text
- http://prograsifkalip.com/files/7032568948.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/4a701e180d6e2c5fbba25392b020ce0a/xowuzosidugumixamogob.pdfIn PDF document text
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/qpsp8m6uvspqbtrkn1b63dbkd5/99744909710.pdfIn PDF document text
- http://kite-surf.sk/files/36123293471.pdfIn PDF document text
- http://jewelry-shopping-city.com/uploads/files/202109091252021038.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bf52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF52 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d764.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD764 | 16692 bytes |
SHA-256: 3903907a56d6662b7c694f47657cbd8e7290cf53e746c24d515dd8594bced16a |
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font_02_sfnt_off000101f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101F0 | 10532 bytes |
SHA-256: 2374f680264c1f69a3f8b5d52289d3d892e59bd8b33925615423084e45460485 |
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