MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable domains, indicating a link farm designed to lure users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://catamma.ru/uplcv?utm_term=how+to+calculate+the+limit+of+a+function PDF link annotation
- http://tokyoto.pl/UserFiles/file/84973021954.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/79i8bhehrb0abourulkutln3qf/13960703105.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b821b4ae9d9---68605295014.pdfIn PDF document text
- http://nadiadsa.org/userfiles/file/nuxaxelo.pdfIn PDF document text
- http://nacyc.jp/Upload/file/sipawefasegomuninuki.pdfIn PDF document text
- https://emmaushuis.org/pages/68769244652.pdfIn PDF document text
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/a7mlv4aie5rdcti9pdsvdcorp1/mimabipijagojulasimake.pdfIn PDF document text
- https://tezerwatch.com/file/upload/files/07-08-08-54-26-61.pdfIn PDF document text
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160e57947e9ec7---galaporopepolawaduveput.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160d66c47d1f60---mepoxafefu.pdfIn PDF document text
- https://biocoils.com/img/file/doxenepuloxopu.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160ca6cc0e6930---vixunebim.pdfIn PDF document text
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/7eab287b1f57ecb580ab8e928676bf6f/zavitadakuwitopitinolidas.pdfIn PDF document text
- http://cephedanismani.com/images/pages/file/85762754350.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a71387b61ee---2375114441.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160983c9a6dc8c---80554616817.pdfIn PDF document text
- http://kartywspomnien.pl/uploads/assets/file/pofuzijekuzobuzisinivuv.pdfIn PDF document text
- http://matthewsmillsreunion.com/clients/c/c7/c7863f7b93cb17915b2a89d887155530/File/gevolenivepuxebikopejon.pdfIn PDF document text
- http://atrsara.ir/resource/files/ziletagoveluzo.pdfIn PDF document text
- http://pokeocncafe.com/uploads/files/57351324321.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a9cd80451ac---voluwodalijubivujetikiv.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/f8bbc0bb495a925c6ebab15fcd4a2678/1475354948.pdfIn PDF document text
- https://dineflon.com//files/rubojawubu.pdfIn PDF document text
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/f9c6147f917df4a78a51b65047242a78/muledumevaxozelixefetiba.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/3a5d901aa2d2e0d7ed7c633ae1efd0ed/birodakatawok.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_off0000e1dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1DC | 17568 bytes |
SHA-256: 5b694792bef619279840820cb4e2170c59526d0e86f4517f77fe0bacfb943e9d |
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font_01_sfnt_off00010fd0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000127e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127E7 | 10512 bytes |
SHA-256: bf1253595af22421601e28c9906c7dea8cd2e329a7ee9b8ba1b125a559d8a27b |
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