MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as a link farm pointing to compromised WordPress sites, and ClamAV detected it as a phishing trojan. The ML classifier also strongly indicated maliciousness. The embedded URLs suggest an attempt to lure users to external sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b372568474---bajurupupuwameliwiparaz.pdf In PDF document text
- https://equantumconsulting.com/files/files/88262921503.pdfIn PDF document text
- http://tianlanip.com/filespath/files/20210902112642.pdfIn PDF document text
- http://asesoriazabalburu.org/azaba/files/file/dilufutegogeji.pdfIn PDF document text
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/pai48s5gbbnntt6j947eugd387/xakozizatojimekavu.pdfIn PDF document text
- https://kaparatt.com/images/File/53295350369.pdfIn PDF document text
- http://esipro.fr/userfiles/file/12828696892.pdfIn PDF document text
- http://historia-bfured.hu/userfiles/file/dejusapuvonene.pdfIn PDF document text
- http://pomocnaukowa.net/Upload/file/64098054856.pdfIn PDF document text
- http://kovovyroba-nosniky.cz/UserFiles/File/79531554990.pdfIn PDF document text
- http://telegid.tv/userfiles/file/22075113649.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/161405ba762d64---petukoxewenodigeku.pdfIn PDF document text
- https://nbc.com.vn/ckfinder/userfiles/files/gewipojigitusofisupo.pdfIn PDF document text
- https://www.aukuras.org/ckfinder/userfiles/files/wapezanosatamakel.pdfIn PDF document text
- http://rucodelniza.ru/userfiles/file/supeniberasenu.pdfIn PDF document text
- https://euforbiabulgaria.com/uploads/pages/files/gukemepumufasen.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/03d44b18e8e9f56705af04ba5d7b2002/votexomamixinifulejonon.pdfIn PDF document text
- http://freewest.at/zelomozovejit.pdfIn PDF document text
- http://glamour-nsk.ru/ckfinder/userfiles/files/287616466.pdfIn PDF document text
- http://le-bouquet.be/userfiles/files/firewirebot.pdfIn PDF document text
- https://tinnituskozpont.hu/files/95435599348.pdfIn PDF document text
- https://mosallaesf.ir/uploads/ck/files/waxinudupa.pdfIn PDF document text
- http://reguitti-engineering.it/userfiles/files/zijawijalum.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=best+android+app+for+making+pptPDF link annotation
- 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_off0000e87a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE87A | 19064 bytes |
SHA-256: 05f0dbc7075bc4712f0558383be13a91882109550e5e091fe55df5bfe3b2beb9 |
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font_01_sfnt_off000119cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119CC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000131e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131E3 | 10940 bytes |
SHA-256: 08fce2a6c8a8d8e308dbf5b9cd586ab30cdef212d079af39277dcfa7f2e07c46 |
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