MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS upload directories. These links likely serve as a lure to download a secondary payload, aligning with a phishing or malware distribution tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://perila-vrn.ru/userfiles/file/20988714606.pdf In PDF document text
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/16078e1ae27239---89552874217.pdfIn PDF document text
- https://hgb.se/filer/file/89731851301.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddc021e31f2---35008662220.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afb2b63220f---75533870328.pdfIn PDF document text
- http://garderoba.sk/images/_file/83513135572.pdfIn PDF document text
- http://spadhotel.com/basefile/spadhotelcom/files/wotedivodofivojuk.pdfIn PDF document text
- http://niezapominajkowo.eu/userfiles/file/98762348614.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16107d5b3c4e85---wotakanukilulutuziz.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/55c1f05a913d2415f6563d24eb2f047e/sobipawanufivivonameje.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608888b8ce0c6---40101483348.pdfIn PDF document text
- http://evola.it/userfiles/files/1732578389.pdfIn PDF document text
- http://kodemari.info/data/files/25854687128.pdfIn PDF document text
- http://www.accl-calibration.com/login/ckfinder/userfiles/files/10933153759.pdfIn PDF document text
- https://alternatifhosting.com/calisma2/files/uploads/gimarujenot.pdfIn PDF document text
- http://studiotecnicomancini.eu/userfiles/files/vudowifigawomubarudibat.pdfIn PDF document text
- http://j1medical.com/uploaded/file/goxovovu.pdfIn PDF document text
- http://mondoacquapiscine.com/userfiles/files/faralewumosabiwatazazimo.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/fd12hkq3od6d3j3lergv3f9j3d/pisebuxezedaselow.pdfIn PDF document text
- https://podereilmontaleo.it/writable/public/userfiles/file/ruwoviroburiguriwigixil.pdfIn PDF document text
- http://chinoboxingclub.com/clients/36032/File/17555934456.pdfIn PDF document text
- http://gostinica-domodedovo.ru/files/25259816847.pdfIn PDF document text
- http://indexone.ru/upload/file/piravulafanuxurom.pdfIn PDF document text
- https://apronorte.org.br/ckfinder/userfiles/files/basirobazadu.pdfIn PDF document text
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/f352028f90aee496c86b58ad56d79611/lidapadizupix.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=arabic+alphabet+pdf+downloadPDF 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_off0000cb25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB25 | 10756 bytes |
SHA-256: 6c09d5169780462154da63ea9092c706ddbea663dbedf0c005bdec5f787eeb6c |
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font_01_sfnt_off0000e3a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A8 | 17228 bytes |
SHA-256: ce15c1f9d11b5740e292226db44bd155c0f2dfc0df70294341e6c8a88c7253b1 |
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font_02_sfnt_off00011086.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11086 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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