MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable domains, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the PDF structure itself are consistent with techniques used to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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://ketchas.ru/uplcv?utm_term=calculating+area+and+perimeter+answers
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1dd2c55e88---bumumilisesakatogem.pdf
- https://altonika.pro/files/fck/file/12993335732.pdf
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/8ed676568e47014c290305cdd2f5ea74/96772164226.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b46a9a45156---bopisorilugag.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080bf8e78214---76495888410.pdf
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160b55da4ceab5---25447656813.pdf
- http://portalpr-b2b.es/img/user///file/_0841664001625179099.pdf
- https://ises.ca/phpsites/vertical_living/uploads/file/22081278057.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/6mqvp5hqg881gk7gpm7u9cvt43/kimulapofu.pdf
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/mj76efm2dj9qhuaplmvfoja8cr/80971565039.pdf
- https://mmszke.hu/files/file/pumirovorobifat.pdf
- http://sghscsjamarai.org/guruhargobind/userfiles/file/67370703550.pdf
- http://colegiosantarosa.com/uploads/imagem/file/xejuwimokazamuximitota.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/8bc6a29da826da27c4f8ca99b15d9868/14222846716.pdf
- http://emurus.jp/userfiles/file/56003406891.pdf
- https://weeb.nu/userfiles/file/boxironixoxata.pdf
- https://voziky-paletove.cz/mctree.cz/pictures/other/files/fanoloxafusoga.pdf
- https://vishalahospitality.com/ckfinder/userfiles/files/13381899344.pdf
- https://kristinanamaste.eu/files/warekosuxupemezis.pdf
- http://veraschwemmle.de/fckdata/file/dokiduwitenawoxexuvafox.pdf
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/8a3e39ca4bcbb0692e4f50864db12ec5/57476938439.pdf
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609251d961829---lupovisederakokegi.pdf
- http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/69665988296.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160959469bd5ad---sagedaja.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_off00010e59.bin46b7f1761adbdf51809d250e53768215dd5b439d5b70d6c6ec042ca17b54439e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E59 | 10956 bytes |
font_01_sfnt_off00012799.bin5382308f39c8f691d629e7e6ef9038aa2d20e940e95826afccfeccfec6f7fc0a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12799 | 17416 bytes |
font_02_sfnt_off00015570.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15570 | 16792 bytes |
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