MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan PDF. It functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms or disposable domains. The presence of numerous links and the use of 'utm_term' parameters suggest an attempt to lure users to potentially malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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://smidgel.ru/uplcv?utm_term=understanding+abgs+made+easy
- http://ymy-tea.tw/upload/files/74825570934.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8443323033---mozimakijuworubedez.pdf
- https://dimensioninteractive.com/WYSIWYGImage/file/zibidofusaxonagil.pdf
- http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/3818023870.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/7645261116cb68fdaf9c3ba2b4143d93/pebivafunafavakodifem.pdf
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/juu018l79fob4ushdoidjhse7l/67683620394.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608c8f345b324---74272896184.pdf
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/819b91286ee1832a979a5c8b72378c9d/24212910873.pdf
- https://ipic.vn/userfiles/file/renam.pdf
- http://amon-syotengai.com/userfiles/file/41163239724.pdf
- http://littlepearlbooks.in/data/eimages/file/lipipijozowoluv.pdf
- http://bobiniauto.com/userfiles/file/61413741248.pdf
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944b27a85c0---34655477851.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16082a98bc8e5e---wenumo.pdf
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/kfsg86t8vttf5vc4efpe4n7f25/lebizufimeta.pdf
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa9acaf066---ferizirefujisoporelotigu.pdf
- https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/76ao67ftoe0dekmujkbnvo4ljr/donisukilitabawa.pdf
- http://bscartridge.com/pic/20946926028.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f4766e0548---54422208042.pdf
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/7686dc14d602312072db03747092b5bb/83493124940.pdf
- http://fautographie.org/images/userfiles/files/xuwom.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f07073ea04---79739333906.pdf
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb00261d86---49439708853.pdf
- http://suachuabaoduongmaynenkhi.com/img_quanganh/files/68889546759.pdf
- http://nuovartea.eu/userfiles/files/48475923036.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_off000101ca.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101CA | 16792 bytes |
font_01_sfnt_off000119dc.bin01109f0314a31943e421bb6bf770a7134ada0f537e819378f457447d39fca6ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119DC | 17080 bytes |
font_02_sfnt_off00014662.bin320863336ae66a075b2b335b3564cf82b4e21b09724e96e5e36989716182abaa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14662 | 10684 bytes |
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