MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious sites. The embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.5557
Heuristics 5
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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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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://mpu-beratung-brendle.de/userfiles/file/28607475689.pdf In PDF document text
- http://studiodebiaggi.eu/userfiles/files/21847719099.pdfIn PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160827c9fed431---guzogaforamirirafeberav.pdfIn PDF document text
- https://pavimenti.pl/web/uploads/files/nuwutelujupokofowivemew.pdfIn PDF document text
- http://eortak.com/img/fck_temp/file/wizepididapidepezolisika.pdfIn PDF document text
- http://mtjjt.com/2013/upload/article/files/210807165012112442jpxde.pdfIn PDF document text
- http://www.armstrongre.com/files/files/motazuvopu.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/70cbtmv2aqqr1m8aoeo02jonv4/suvirukekikukanupesil.pdfIn PDF document text
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/d7f77fbf715165965dc03d31fd67e063/43781487140.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/9038749a362c00e135095f48c5508559/pewamubaderabe.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/d0c5283bff28bfe63b6b2b1f331adbab/nasumoxoretorilalol.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/hm1bt9885ucgmsbhmg96q0r5mn/wexipinubiwisadapimenilev.pdfIn PDF document text
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/b45088f2d498d1335c6f2dd5f43afb2c/ganemapopiduvagadetigafad.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1607772de27fe3---zatawurebefe.pdfIn PDF document text
- http://smn68.com/clients/75339/File/16756643362.pdfIn PDF document text
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16083126e309fd---85311171473.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c899d8f375f---7845137332.pdfIn PDF document text
- http://bscsaoner.in/ckfinder/userfiles/files/2406162952.pdfIn PDF document text
- https://consultingexpert.eu/fckeditor/userfiles/file/90640235563.pdfIn PDF document text
- https://baxsporthorses.com/userfiles/file/zofoxiluwuwifakexavirutaj.pdfIn PDF document text
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c1f4e65e6---sosedemebujemenoxo.pdfIn PDF document text
- http://www.motionmantra.com/userfiles/files/wubarufulidarafuwuxom.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607516bf64221---nexolubewekuma.pdfIn PDF document text
- http://tutek.eu/userfiles/file/16337980874.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=implicit+cost+of+productionPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA04 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f21b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF21B | 10540 bytes |
SHA-256: def903683460d67b3a2dbe01c7ed1435bb1abb59b475b57d814a451150b6d5ef |
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