MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a link farm pointing to compromised WordPress uploads and disposable hosting, indicating a phishing or scam attempt. The heuristic 'SE_CALLBACK_LURE' strongly suggests the document is designed to trick the user into calling a fraudulent phone number, likely for a tech-support scam or billing fraud. The ML classifier and ClamAV detection further confirm its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://oniceh.ru/uplcv?utm_term=best+audio+recorder+and+editor+for+android
- https://canionglobal.com/FCKeditor/file/33849978816.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/e748190c3a406a69e06d5dbf3e4ecbff/japuzezomenuzisizalawubuz.pdf
- http://careerpathrecruitment.com/swapscan/app/webroot/js/ckfinder/userfiles/files/xagaxidu.pdf
- http://thietkewebsite.btccorp.vn/uploads/files/69970752765.pdf
- https://evrenmentese.com/upload/ckfinder/files/depuwelubarivaxosun.pdf
- https://ever.dacola.com/upload/files/83487837514.pdf
- http://aurangabadptti.com/ckeditor/ckfinder/userfiles/files/28824919021.pdf
- https://efsanepin.com/calisma2/files/uploads/3083818600.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/16131cdc283202---20837714941.pdf
- http://rama-sp.com/rama/webroot/js/ckfinder/userfiles/files/35173974636.pdf
- http://unicorn-furnitures.com/d/files/11023661599.pdf
- http://franceplus.fr/userfiles/file/87234732740.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/161313c3fea574---1479323829.pdf
- http://exoticland.bg/upload/files/files/xamotudakobatijijivenonod.pdf
- https://www.mds-horizons.com/upload/files/61978024705.pdf
- http://electric-kernbichler.at/86837714920.pdf
- http://thailaundry.com/imgUpload/files/77280115301.pdf
- http://f-okinawa.com/img/tmp/files/busawe.pdf
- http://abbuffalowings.com/uploads/files/movinukek.pdf
- http://1yunnan.com/ckfinder/userfiles/files/78000518145.pdf
- http://klick-tipp.at/ckfinder/userfiles/publics/files/safelemosivejizesape.pdf
- http://artio.pl/files/files/19380741.pdf
- http://ahxxzx.com/userfiles/202109/file/25938901528.pdf
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/i1b0tud9quii05cfk61ecdjnj4/tebaxakixi.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_off0000de4c.bin7b0b899a47e2d169bf8e3c6dc01d064499a993606debcfa3a604e0931045fa2f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE4C | 16824 bytes |
font_01_sfnt_off000109a9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109A9 | 16792 bytes |
font_02_sfnt_off000121c0.bin4b1fe2436c0495829c0977b2fbc0811e5f12e3a78af11c0fa0dd4736e8a828e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121C0 | 10576 bytes |
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