MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or are part of a link farm on disposable hosting. The primary function appears to be directing users to external sites, likely for malicious purposes such as phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://sacmacbook.net/userfiles/file/15250940163.pdf
- https://interference.ajoda.eu/userfiles/files/vefobidasiwowixusutoxesod.pdf
- http://acm-medicali.it/userfiles/files/78702669701.pdf
- http://wsm.hk/images/uploadfiles/file/xobazototokunapog.pdf
- http://armiikrajowej36.pl/public/upload/ckfinder/userfiles/files/rukoxojelusexigoxelanej.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9d0ac4699---4874595900.pdf
- http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161388e14131c7---newugamelusaxon.pdf
- http://veganogle.es/uploads/ckfinder/files/316819526.pdf
- http://santamariamikado.com/uploads/files/11165155234.pdf
- https://m-astar.com/UserFiles/files/reberafilezagifan.pdf
- https://uat-tunisia.com/userfiles/file/52832611004.pdf
- http://gsxr.hu/userfiles/file/22506760595.pdf
- http://schokofontaenen.de/idata/84237153597.pdf
- https://sadex.pl/fck/file/5533352542.pdf
- http://ap116.ru/userfiles/file/rotegazibufabonavak.pdf
- http://bibonatura.hu/ckfinder/userfiles/files/86848323781.pdf
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/803469f53679808ef2e9869149462156/41821768506.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132729f1d1a7---60865336605.pdf
- http://sochi-riba.ru/ckfinder/userfiles/files/bozifox.pdf
- https://bandotrading.it/uploads/file/nujan.pdf
- http://firsttimehomebuyerstudy.com/images/file/linekejekibakexox.pdf
- https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/rubejekudazinabudajon.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16133d0ce8a8d7---tezesewuzogoverex.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=tubemate+youtube+downloader+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_off0000e2f0.bin39a81cfb5d60d0f07f573a89997289b6303854f9fa82e08fe251fe67aa0dcba2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F0 | 16808 bytes |
font_01_sfnt_off00010e8e.bin53cb155da173716d6450c336f847c59e149e119c2de1488bfecfdda34a1347b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E8E | 10656 bytes |
font_02_sfnt_off0001270b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1270B | 16792 bytes |
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