MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as a phishing trojan. The PDF contains numerous links pointing to compromised WordPress upload directories and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. No scripts were extracted, but the presence of external URIs and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9930
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://crysiq.ru/uplcv?utm_term=runoff+coefficient+table PDF link annotation
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c32a474be70---tuwupugolitemew.pdfIn PDF document text
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f26b90fb9---powowenajexuvag.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b264186a767---79268800502.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e52be31018b---5744921294.pdfIn PDF document text
- http://www.evisiontiendaonline.com/ckfinder/userfiles/files/31018963855.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/0177f43a49c8ea58aac96aa691e71530/64931285078.pdfIn PDF document text
- http://vietthanhstone.com/images/news/file/godibidudoke.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7fac31f32---79208178158.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080418c38a80---69524787927.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/939268e3300110013e5fd61d7818a136/siburikevevupabudezoxorer.pdfIn PDF document text
- http://kiemtoanhaiphong.vn/upload/files/26627997760.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608325093f941---zogitabapu.pdfIn PDF document text
- https://gbeequestriansurfaces.com/wp-content/plugins/super-forms/uploads/php/files/mau0hkenidka9ua6lfp8p8jop6/sudakitokidemawugurudos.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/bda6955ada9d44d0a91053cd88f073fa/wavaba.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/7ebf0316fc067cda2bc6ab717f86daf3/nitetobebikejutodepajasej.pdfIn PDF document text
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099bbd669b92---luselifelazopa.pdfIn PDF document text
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083df6b5ba2b---77197111806.pdfIn PDF document text
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071006534040---mexanegomesibanasud.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b23075bdd7a---likik.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/a57acd88260bcebb11453a7318b1d01b/45688657673.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/45342342913.pdfIn PDF document text
- http://gute-reise.ru/i/files/files/lozopizoxogedojikajisebos.pdfIn PDF document text
- http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/d454085a124830540b9a670f54972bb4/17250820663.pdfIn PDF document text
- http://greece-ex.com/images/blog//file/71086308782.pdfIn PDF document text
- http://asesorgubernamental.com/images/file/68940958372.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011c56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C56 | 10348 bytes |
SHA-256: d74eb6dc9e6e01be868c53ca36149e43226df36eb13d02b2d15ca9f025f0943b |
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font_01_sfnt_off000133da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014bec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14BEC | 17084 bytes |
SHA-256: 533c1a78b82b71ac711632c237c464afba8215c36126ae5bcac6e638445c1673 |
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