MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting. The heuristics indicate it functions as a link farm, likely designed to redirect users to malicious sites for phishing or malware delivery. ClamAV detection and ML classification strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
Heuristics 8
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://philabc.ru/uplcv?utm_term=can+i+have+two+facebook+accounts+on+my+android+phone
- http://k-ookuma.com/js/upload/files/39903862835.pdf
- http://turchifiltri.com/userfiles/files/gizabojak.pdf
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/dc47d04f090647c8b3648e7193c5ad9a/50336588850.pdf
- https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/muredosejujoj.pdf
- https://cdmsig1.com/ckfinder/userfiles/files/mamurorenukuxigo.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/26dd5fa8f4845a8b361688450b702e2f/kikabulezuro.pdf
- http://kco.su/userfiles/file/53102586606.pdf
- http://csc0451.com/userfiles/file/20210911105337_z0hr7i.pdf
- http://fuhua.tumujike.com/assets/upload/files/202109012102417315.pdf
- http://forumcutuca.com/ckfinder/userfiles/files/40000600516.pdf
- https://hometeamcorp.com/images/usr/kodinufavejidopider.pdf
- http://cpghollywood.com/userfiles/files/wozatofuvajifugapetakuwof.pdf
- https://doctmcooper.com/userfiles/files/51857065351.pdf
- http://maraulsan.com/ckfinder/userfiles/files/31229286924.pdf
- http://jingluo.net/uploadfiles/files/74312106437.pdf
- https://vietrocknet.org/app/webroot/img/files/36710542722.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135d87d02ac8---dusekizufulopirobav.pdf
- https://sabunwangi.com/contents/files/6011058166.pdf
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/aodj19jvmn0jt02poo56g1sch4/vigarenune.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/161335efd8be3a---rutidujelujazorujezibole.pdf
- http://businessvaluationapp.com/fck_files/file/werura.pdf
- http://goldcoil.com/uploadfiles/files/patewoxedijuli.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614e65381c3ba---10843702856.pdf
- http://shengyaweb.com/uploadfile/file/2021091402445910.pdf
- https://kcss.hu/korosi/userfiles/file/39741955909.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_off0000b0be.bin6ac08b9c5d1d7e986fa61285b04b5304f17bb3c7534459b8a38c8475b78468a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0BE | 15220 bytes |
font_01_sfnt_off0000d786.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD786 | 16792 bytes |
font_02_sfnt_off0000ef9d.bin9209d48c70b91f8d098e131ba12102c02ccabec3a110d8a5c835c4fb0963f78a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF9D | 11468 bytes |
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