MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to compromised WordPress upload storage and other disposable hosting sites. The embedded URLs, such as 'https://allytemp.ru/uplcv?utm_term=hal+r+varian+microeconomics+pdf', are likely used to distribute phishing content or further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://allytemp.ru/uplcv?utm_term=hal+r+varian+microeconomics+pdf PDF link annotation
- http://gruppocaminiti.it/userfiles/files/tokipukavegeg.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137bb0d97bef---xubitatujafumawobalodulu.pdfIn PDF document text
- http://fmafirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pagila.pdfIn PDF document text
- http://jumpstart.mobi/ckfinder/userfiles/files/xufulawox.pdfIn PDF document text
- http://avtosfera28.ru/userfiles/file/neretiza.pdfIn PDF document text
- https://irastuff.com/admin/ckfinder/uploads/files/51811425879.pdfIn PDF document text
- http://bhttourist.com/upload/fckimagesfile/tipafomenutu.pdfIn PDF document text
- http://euromarkcreations.com/new/fck_img/file/nikulajederekarop.pdfIn PDF document text
- http://hoigolfbinhthuan.com/users/files/48513500142.pdfIn PDF document text
- http://igs.compcierge-asia.com/ckfinder/userfiles/files/55142741310.pdfIn PDF document text
- http://teewer.mn/ckfinder/userfiles/files/tipefike.pdfIn PDF document text
- http://taigesw.com/upload/files/lukipuge.pdfIn PDF document text
- https://promoxcenter.ro/ckfinder/userfiles/files/70474259603.pdfIn PDF document text
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144b28b1c94e---nozozulufirasapirulifuwoj.pdfIn PDF document text
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161437c260d4f2---napiduselurewelonopixune.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145bf9098063---36343175145.pdfIn PDF document text
- http://sh-songshi.com/admin/upimg/file///70721437744.pdfIn PDF document text
- http://msdoubrava.cz/foto/images/file/72566371756.pdfIn PDF document text
- https://charming-dc.com/uploads/files/202109100401427668.pdfIn PDF document text
- https://netlandschool.cl/files/faxizupitobutejorogimuvi.pdfIn PDF document text
- http://dsacare.com/admin/uploads/file/81567817155.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_off0000d3be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3BE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ebd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBD5 | 10740 bytes |
SHA-256: ea20c7b16acdfb6ac5868314da0e9d67f6e4e734d34fa6c4312b7a2b05ce3062 |
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font_02_sfnt_off0001046e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1046E | 17208 bytes |
SHA-256: e9facb8bea20ff22ab98ea78fd2f5f6b08396974180a3a3a5bc889da74a7aa57 |
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