MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to compromised WordPress sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates this is a link farm, and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' confirms the use of compromised upload storage. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for SEO spam or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/kr2iv1cikkn7cgbdp72o63k8nl/57415913131.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/447448a0cb9a854ede59212724ab033b/xinofi.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bdd0c6620e8---sazofaderogigusadikutele.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/90b5985970584495433071f3f8d2ff1e/finikezubuvawoxajoxo.pdf
- http://dush-kz.ru/uploads/fck/file/48502382186.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/nccrfajkg76bb1792n2e6ss36r/kiwuka.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160722c6eaaf2f---wusup.pdf
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16080dd53043ba---80198862472.pdf
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/colch3jfa7usjqo1l2tsggbf05/tabisakudinasuwafato.pdf
- http://reelproductionshd.com/userfiles/file/50259278515.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/f529643ac5e68fd295bcc746cd1d7494/46637217576.pdf
- https://we-plus.tw/ckfinder/userfiles/files/vinetujibovoxixuwakaful.pdf
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608796edda4fe---lebapovanirojekafix.pdf
- http://stark-tools.ru/images/uploaded/jobefavegidizeseremonoju.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072edc33b4f9---43768644018.pdf
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608aeb1636be5---81838735038.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160eca847a6df4---51447137344.pdf
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/8683toq76oka1sk7hbnmn9kdv3/13187263030.pdf
- https://artbynela.com/uploads/file/faritola.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/ab07bdbddd7f4c273b4dbc4d3fad248b/sokixenubobuzusitoror.pdf
- https://allcreaturesinc.com/files/files/3779775380.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c716cea70---buworesejasikewe.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c3d2ebcfe3f---bilasajepewutetaxuzenexo.pdf
- http://blissworldbeauty.com/newerac2c/userfiles/file/39976866647.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/9a9d333d047ad9dd143730699fafc2f2/dogekujavutaze.pdf
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/8422b15b23e1b464633b72f321d6d1bb/8830872995.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=place+value+worksheets+for+2nd+grade+free
- 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_off0000f20b.bin25f9c39f302df669c5f059d50d323f6a8a53b61cf5a9bf252ea20a51447f9658 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF20B | 17060 bytes |
font_01_sfnt_off00011e08.bin41d0930f5eb39d65206ae9f32898c8857c35853cda1aea0d2faad89e321f4ffd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E08 | 11128 bytes |
font_02_sfnt_off000137f1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137F1 | 16792 bytes |
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