MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites, suggesting it's used as part of a link farm to redirect users to potentially malicious content. The presence of external URIs and the overall structure point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9928
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://oniceh.ru/uplcv?utm_term=my+stomach+really+hurts+after+eating
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609ff5b8d0b94---xatonizij.pdf
- http://atek-ent.com/upload/file/92209667056.pdf
- http://www.firengo.com/userfiles/files/64789318990.pdf
- http://dush-kz.ru/uploads/fck/file/zujifijubetejalawomima.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16073dea54d1f2---79158672622.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160722c540cead---povugogotumadereke.pdf
- http://vagtteam.dk/userfiles/Files/fibazekivevuka.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16082a7a6ba5c5---disopuwojukefepapenin.pdf
- https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/13a308f28002dc58be87ce61c7b761b6/dokixo.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607315bb3ed81---47571812794.pdf
- http://kwong-cheong.com/userfiles/fefifeponodik.pdf
- http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086a590830f1---74481960510.pdf
- https://fonixkoncert.hu/upload/file/2843762979.pdf
- https://its-bulgaria.bg/files/file/83477399581.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1608673e6aacb8---lezuzewavab.pdf
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6052941a7d---82871090619.pdf
- http://a-kamen.com/userfiles/file/vugefakafinalazeku.pdf
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/3jbles1n7u1b6hjjipbi1uog37/28789975007.pdf
- https://africanresearchcenter.com/userfiles/file/32917041028.pdf
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/86k7u4ihu9moeftnrkdqurvq9h/19426085722.pdf
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/5bbc120c8c6fd07c2a8f7504101c4f94/72178169836.pdf
- http://catgarner.com/clients/873270/File/29999377802.pdf
- http://hvpeds.com/upload/contents/file/20109421124.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085e7575a9b1---92984418319.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_off00012065.bin4c75078950c6790236794816f47109c74702176baaacf5f2e90752b17bbc854e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12065 | 17296 bytes |
font_01_sfnt_off00014d75.binbf108215b556b92a7d92d0ac1ab11d8280572823329cc7bab0e89a880a81acc8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D75 | 10988 bytes |
font_02_sfnt_off000166d7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x166D7 | 16792 bytes |
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