MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users. The presence of 'utm_term' in URLs indicates tracking, common in phishing campaigns. ClamAV and ML classifiers also flagged this PDF as malicious, likely due to its structure and embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://infrive.ru/uplcv?utm_term=artificial+pacemaker+surgery+pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/8fc8b9835c0b3089b369987fb0349785/33246088099.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/r3jlbggi61t2a29ugf3b2sj4a5/1031051473.pdf
- https://ivantomanov.com/userfiles/file/buvulepewatolasorukenuvi.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/pms6rh6g3f8osjesdvogkvbidu/67196495107.pdf
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/bdf2a80313acee25a1f05da917028dbd/danilizabanirudumufevej.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a91c7697008---fafijelokematuxum.pdf
- https://baoyi-chuck.com/ckfinder/userfiles/files/pokeruvozaw.pdf
- http://aucoindeshalles.fr/menu/file/pulofatemigutizagenari.pdf
- https://jodhpurtravels.com/nbloom/fckuploads/file/povuwa.pdf
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/a10356134857ae26a1c20d045ce0b48e/35878109473.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1608ab9d803f2f---sekulazok.pdf
- http://thailaundry.com/imgUpload/files/72769335642.pdf
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/59112b37980cab599831a7db86e76bf9/16667882400.pdf
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/988e20ef7082d1d1ad209541547c3978/gibipe.pdf
- http://growlink.biz/userfiles/file/berefumojuzig.pdf
- http://hflchw.com/upload/file/wakojuwakazadoveg.pdf
- http://xn----7sbbbizu2bxaod.xn--p1ai/userfiles/file/40031458294.pdf
- http://anindecor.pl/files/file/rejabubin.pdf
- http://hud101.vn/webroot/img/posts/files/19402888367.pdf
- http://vyveva.eu/UserFiles/File/vofafudibokebugilot.pdf
- https://tvsporedi.si/vsebina/50505231730.pdf
- http://uat2.hkha.com.hk/ckfinder/userfiles/files/660765660.pdf
- http://schoonhovensvrouwenkoor.nl/ckfinder/userfiles/files/vujevanige.pdf
- http://regimhotelierbucuresti.com/images/userfiles/fujolibabi.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c861c7f7f9---24868808570.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_off0000e1bd.bin68163d009f49afcd916461b264c63feebbbb7504b05b042aa6e43f0bc4698b76 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1BD | 11024 bytes |
font_01_sfnt_off0000fb49.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB49 | 16792 bytes |
font_02_sfnt_off0001135b.binf14fc5d5d066c693ce9baa3453d85353fe0572e3bd8bb284737f896bc93a69e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1135B | 17440 bytes |
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