MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload locations and disposable hosting sites. The embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution scheme, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9790
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 http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/pafeegmhjqkpp5b2pcjrce3al1/jenejotizuzutifip.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/kfnm64640rda4l1vsdhmq3h213/pukiponoj.pdf
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf75cd3fd41---nepijikuvilojenikaz.pdf
- https://tidurmalam.com/contents//files/bixogexivoritaxuxu.pdf
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/ee972aa4349fd867162002c6b0b7e836/togiku.pdf
- http://dragonspond.com/uploads/files/19963334435.pdf
- http://gibisch.info/files/files/lowireziwo.pdf
- https://aedwea.com/upload/foto/wifukorutoguso.pdf
- http://aihyang.com/userfiles/file/48797005436.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/dc46a7830b2ab53c31430802b8817716/robejevakekutinepeta.pdf
- https://dailyiat.com/html_upload/file/semil.pdf
- http://weberstellen.ch/userfiles/file/mamagaxemeximimezuwuw.pdf
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a96e3887507---35053580336.pdf
- https://appchecar.com/ckfinder/userfiles/files/91549118098.pdf
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6785276ba---gatawazuneva.pdf
- https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/0dd07faf7d7a883a082a5c991d6cdffd/dupoxojimusavevenilibopis.pdf
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160be3c3dbacc9---12836601864.pdf
- https://247christianity.org/fckeditor/userfiles/file/270634142531622337509.pdf
- http://yogathoitrang.com/quangbasanpham/app/webroot/upload/image/files/5318084828.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8d5790a8b9---xibuzipivumafagizabenowa.pdf
- https://actaviaserica.org/board/file/files/44731273054.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c002020e35---regewizozevorolaka.pdf
- https://projetounificado.com/uploads/files/tepurokamubunasijivofo.pdf
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16098f50f878c3---dutirojamolesowoj.pdf
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16070664c8068c---zajel.pdf
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/3nr12vn4ui047fja8vuf69of2l/zawesasanirujenojaxaj.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=road+to+damascus
- 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_off00013a09.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A09 | 16792 bytes |
font_01_sfnt_off0001521b.bina3d33275f94d1917548d2f2c2b47381256315aa55fa2c938a187683893c6973d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1521B | 17456 bytes |
font_02_sfnt_off00017fde.bine75d5b8b455bf99e48ccda4e30182b12bb4527165df848f26e9dee865a1483ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17FDE | 10200 bytes |
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