MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing a link farm that redirects to multiple compromised WordPress upload directories. These directories host other PDF files, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.
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://oniceh.ru/uplcv?utm_term=contraction+definition+science
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160974f1fdda03---jagenofig.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086c91290714---rewuzonis.pdf
- http://rauvuonsach.net/images/uploads/files/kurolive.pdf
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/12c01b13c8d68c751c909b5ea43d2b30/tabafekaxixodiref.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b05f5d30e72---dumika.pdf
- http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607142ac1437c---gefirafopimu.pdf
- https://airshow-bg.com/file/27007993471.pdf
- https://advance-pack.com/editor_upload/file/95212399997.pdf
- https://wavesmaroochydore.com/wp-content/plugins/super-forms/uploads/php/files/7r0qupm85ts9fj4770838faov7/bukurisu.pdf
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608d7166023d5---79527852350.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/knm73tim4niin3mc67ba1o2as6/gosowivutagixub.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/0jj7qncl21dh5kv4l5cleaq0gm/zumomorapefozusifu.pdf
- http://arch-teh.com/pic/userfile/40917387316.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160767eb862890---50004315680.pdf
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/f028ef6a6a670c57fca0fdfc5ab543da/xiselogubulilaso.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/3e97a44785ef72bf51a5f459db0ef4ba/dosokumimoz.pdf
- https://aquatrustfina.com/userfiles/file/tilawepijesixo.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/nq2jos4qojtjcebbmn09k75n6n/wadijafeguxuwenapetozi.pdf
- http://sakaryakasaplarodasi.org/userfiles/file/vobexu.pdf
- http://danies.ru/ckfinder/userfiles/files/zubebinoporulezufija.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b2f54bd196---kezefowejovebimub.pdf
- http://maslag.eu/userfiles/file/nozotudi.pdf
- http://digifast.cz/userfiles/bisuwi.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c4a81616ec7---dimugadetafux.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_off0000c1fa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1FA | 16792 bytes |
font_01_sfnt_off0000da0c.binfc01c49565b155f4ad2ab12e7de54be784438e97b3876da2c6790be3992ad503 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA0C | 17044 bytes |
font_02_sfnt_off000106a7.bindad600d4dd18d96fe23229ba68e19e71e327e7fc821b4d357a68f921bf9a27a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106A7 | 10456 bytes |
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