MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded URLs pointing to various websites, many of which appear to be hosted on compromised CMS upload directories or disposable hosting. This structure is characteristic of a link farm used to distribute phishing lures or redirect to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/sukupuleveduboxudimele.pdf
- http://koronowskasm.pl/file/vilolikalonibufavefex.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/f1b5f7d0373513ba4e23684b255c0ef0/xijesovojetamigigotosuve.pdf
- https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/c65a722a4940ed1437de98e0119296c7/87012660382.pdf
- http://bet-balance.com/userfiles/file/pojilumupinidor.pdf
- http://gayaarchi.com/userfiles/file/20210618131900.pdf
- https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/908ba130ec2ff3539b983bd2c7fc1e1f/26034251445.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609e09c462dd8---78385546334.pdf
- https://annekienlen.fr/imagesfile/moxijix.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b185bb8c4---xupikalolidebuvitav.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075e911eae91---69025623162.pdf
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/078fd9c2a540bfbd2aa6946da8b619e2/48793328682.pdf
- https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/f20453271181d3a60b7b35f9c507887a/gaselafowixilev.pdf
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4c0e08c1f3---37929246527.pdf
- http://daotaonhaccong.com/uploads/userfiles/file/bobelukiruzelijapu.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/274f4b499b493e8348288db06fe12047/80376074199.pdf
- https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/773e78f6ce0fddf4a72ef2807032bc6f/9002844794.pdf
- http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9af1f2dbbf---xopegu.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3caa89715---kesuwelobibapebugiz.pdf
- http://bulk-supplies.com/userfiles/file/kumugiz.pdf
- http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c20387d7e90---podazujiviv.pdf
- https://bacninhonline.com/webroot/img/files/jukumalinesokesenuzob.pdf
- http://jlm-kg.com/uploads/file/danudotonitigesopuri.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=must+and+have+to+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_off0000e85f.bind32a3096a1afdcd0cc3bd576df0e21c74ba2ae2a47194aeb1df7ea2034ee6c91 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE85F | 18436 bytes |
font_01_sfnt_off000117df.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117DF | 16792 bytes |
font_02_sfnt_off00012ff6.bin8fe8be81703e56712f5a899e8f49e4a93f500edc1da4111672aa09df959aecaf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FF6 | 10516 bytes |
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