MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that point to compromised websites, many of which host other PDF files. This behavior is indicative of a link farm designed to distribute malicious content or facilitate phishing. The ClamAV detection and ML classifier further support its malicious nature, suggesting it is a phishing or trojan distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://wastran.ru/uplcv?utm_term=how+to+phone+storage+move+to+sd+card PDF link annotation
- http://architetturaurbanistica.it/userfiles/files/jigubo.pdfIn PDF document text
- http://novichiha.ru/pic/file/zajezowiwijobuboranifi.pdfIn PDF document text
- https://servicepapik.ro/files/48707625312.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/7ce8a9400ed513513853e3a4011c01a8/jetipasarajafewiguxelo.pdfIn PDF document text
- http://bxbrdh.marketsearching.com/upload/files/6692841176.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161457367e98ac---97719096763.pdfIn PDF document text
- http://lexxyin.net/files/fckeditor/file/tozevixoxazegonisasi.pdfIn PDF document text
- http://wimborst-ceramics.nl/public/view/upload/fckeditor_images/file/5091980294.pdfIn PDF document text
- http://xinyuemu.net/assets/202109/files/20210907164958699236.pdfIn PDF document text
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/6so1fe7lrk0jveiao8jdi1d20r/59063780422.pdfIn PDF document text
- http://www.psoevalledeabdalajis.es/ckfinder/userfiles/files/79494566896.pdfIn PDF document text
- https://monyetjoget.com/contents/files/27895213311.pdfIn PDF document text
- https://pet-fashion.ro/mm/file/dufamomagogogonapovo.pdfIn PDF document text
- http://xn--80aafbanafwvcftiqfecrg2a.xn--p1ai/pict/file/9966039333.pdfIn PDF document text
- http://tjsyjdq.com/v15/Upload/file/202191554497705.pdfIn PDF document text
- http://mtjjt.com/2013/upload/article/files/210906011236263697me97y.pdfIn PDF document text
- http://eaupureinternational.com/userfiles/file/44658659850.pdfIn PDF document text
- http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/wejafujavowi.pdfIn PDF document text
- http://fitviewer.com/files/file/sidizuk.pdfIn PDF document text
- http://hangquangauto.com/files/14577307619.pdfIn PDF document text
- http://pekingtogo.com/uploads/files/tomopuseludufofajupakelo.pdfIn PDF document text
- http://rbc-bezorgdiensten.nl/upload/22985524154.pdfIn PDF document text
- http://lsneotek.com/ckupload/files/76257177963.pdfIn PDF document text
- http://uceng.net/_UploadFile/Images/file/wizefufagowujepisezo.pdfIn PDF document text
- https://mlbcsimleague.com/ckfinder/userfiles/files/79951356636.pdfIn PDF document text
- https://pre-www.bridge-academy.com/uploaded/ckeditor/files/supowo.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_off0000d4a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4A3 | 10968 bytes |
SHA-256: 7d5884dc93d3ab791212e7dccb2095b220acf25ad667a86666b0362f439a4e45 |
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font_01_sfnt_off0000edca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDCA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000105dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105DC | 16952 bytes |
SHA-256: e523ef874eba024c5395bf9b04033f29abfbc675191756d365f78b09296e4221 |
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