MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm directing to multiple websites, many hosted on compromised CMS uploads and disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were extracted, the structure and URL patterns are consistent with a malicious document designed to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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://jakspravnenapsa.cz/userfiles/file/banavawatenuzufe.pdf
- http://selfmadefilms.nl/userfiles/files/rusexupokedalifajez.pdf
- http://goldnumber.info/userfiles/file/kejazejeb.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16149e2e07422e---nunobuxalaseposojekafepil.pdf
- http://dpnovelty.com/upload/files/puvelonogux.pdf
- http://twozonechickenlasvegas.com/uploads/files/jitafamexufosugaduwefoka.pdf
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/39741atmhsip92m03jkasmltsr/lajufokubebugopeba.pdf
- https://euroquimicadistribucion.com/zabaleta/data/imagenes_contenidos/file/vovisojugepurenuseso.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161415f090e8a3---pedal.pdf
- http://twinmd.ru/userfiles/file/85739096368.pdf
- http://www.yoko-ono.be/images/userfiles/file/61295033870.pdf
- https://brihat-group.com/assets/userfiles/files/31799808103.pdf
- https://prcomponents.com/ckfinder/userfiles/files/xitefogitaxikisusame.pdf
- https://taumed.kz/upload/2021/09files/210907185031900534n8agw.pdf
- https://fontaine-eva.fr/userfiles/files/puvemigegujigilu.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dbf078b66a---44118017877.pdf
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/fcakej7sv5dvs0551q16nj9sc4/66669824902.pdf
- http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/66141945273.pdf
- https://aimtronu.org/userfiles/file/jelimagofiliderorovis.pdf
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/0d3f1993e4d1a3ff4408f150f50c8051/lazexir.pdf
- http://www.anjhimayath.com/upload/file/81616199796.pdf
- http://wccflooring.com/userfiles/files/68316042847.pdf
- https://sanagustin.cl/files/mowumubabugufofotijonum.pdf
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/paba84q680vdnu9pcj8ji787hq/99747000856.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1614ba537aad7f---48494544606.pdf
- https://renesens21.com/ressources/upload/files/68674543685.pdf
- http://www.gpe-el.pro/ckfinder/userfiles/files/94195090141.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=basecamp+for+android+tablet
- 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_off0000ceda.bin1555584c7122b7ebcac9267f0184cf05ed08e45d1b9e470c0bdea724b2c9b479 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEDA | 18036 bytes |
font_01_sfnt_off0000fd50.binf9eadde5c3e66297073e2c939def0cac89f78a9695683a976e169ef529d8b0e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD50 | 10976 bytes |
font_02_sfnt_off0001168c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1168C | 16792 bytes |
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