MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Numerous heuristics indicate the PDF functions as a link farm, directing users to various compromised WordPress sites and disposable hosting domains. These links likely serve as a lure for phishing or to download further malicious content.
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 https://crysiq.ru/uplcv?utm_term=lady+and+the+tramp+espa%C3%B1ol
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9f79a1bd40---wowimobaw.pdf
- https://mfdesign.hu/files/file/xaperuwetonivufemeruzidax.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a97278be10c---kaxanixunabigemurabel.pdf
- http://dh-life.com/ckfinder/userfiles/files/nemijetazejofotaritusagax.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/rd3kea5ga5a3joec3ja7rmbuq6/gijej.pdf
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/ed813c9cb2982610998dabbe9c140321/43035497488.pdf
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/qb3m43fbkcb7ftdv83b3kn1gvs/95660218317.pdf
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/sjuta6lo7sthf71hv1uk0ogtf0/marenoxidesixape.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/3eklngfg333u58pidpr2nelsb5/woforakapaminenoxefubad.pdf
- http://apexnepaltravel.com/userfiles/file/93745858136.pdf
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6952264e2---rijaxiduw.pdf
- http://veterina-hrib.cz/user-uploads/files/suretupebini.pdf
- http://cameralehiep.com/hinhanh_fckeditor/file/9704394648.pdf
- http://tele-video.ru/upload/files/71807232421.pdf
- https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/rk97ehvfkqmplpec7qe6f9ft85/gokewixixipofotupupikipow.pdf
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/06639103ebb5bb12237b1905cb84330c/ralapusafaka.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16071b4ebe39a2---94302057123.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6b6ab113b---50442159705.pdf
- http://tsg-edinstvo.ru/userfiles/file/173510451.pdf
- http://nusratali.com/userfiles/files/10687716461.pdf
- https://al-farh-iq.com/upload/userfiles/file/92635437340.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ab9eb9302b---jofodiruwilikim.pdf
- https://nguyenthelong.net/userfiles/files/nukaziriguda.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_off0000db22.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB22 | 16792 bytes |
font_01_sfnt_off0000f334.bine0e4c2e136f46861bd549decbb5158dfa7068e5c186f048f55ae2e2c3d67d01b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF334 | 19936 bytes |
font_02_sfnt_off00012815.binb1519d945d469a37ffe0feb63474f342d2583de603a27711cd64b2dafde09134 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12815 | 10840 bytes |
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