MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating malicious intent, including external URIs, links to compromised CMS uploads, and a link farm on disposable hosting. The ML classifier and ClamAV detection strongly suggest this is a malicious PDF, likely a phishing or trojan delivery mechanism. The presence of embedded URLs and the 'download button' heuristic indicate a lure to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9933
Heuristics 8
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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 https://drafthe.ru/uplcv?utm_term=download+octopus+32+bit+apk PDF link annotation
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/4eb47710f5855b8ef77932c0a0ea5d73/40343188921.pdfIn PDF document text
- http://www.mediagrand.hu/data/editorfile/kiwigamadatawuxawitaj.pdfIn PDF document text
- http://kozhencherrymtc.org/userfiles/file/99433037115.pdfIn PDF document text
- http://thegioidahoacuong.com/uploads/image/files/34207084519.pdfIn PDF document text
- http://machinesupplier.cn/data/product/file/2021918_18333_168.pdfIn PDF document text
- http://lollanaclinic.com/image/upload/File/wuvutikebumi.pdfIn PDF document text
- http://jucal.es/images/file/jetitubaresadolu.pdfIn PDF document text
- http://stadion-zarya.ru/ckfinder/userfiles/files/31471613641.pdfIn PDF document text
- https://alubiasdetolosa.com/files/galeria/files/98462001064.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/fejim.pdfIn PDF document text
- https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/fuzivot.pdfIn PDF document text
- http://157.230.241.115/image/upload/File/pulezor.pdfPDF link annotation
- http://garderoba.sk/images/_file/nowivolawirirurevusibu.pdfIn PDF document text
- http://maybomnuocdanang.com/uploads/image/files/vemojeb.pdfIn PDF document text
- https://tybistanbul.org/resimler/files/10680468487.pdfIn PDF document text
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aabfd43169---82230472149.pdfIn PDF document text
- http://michelschuurmans.nl/images/uploads/file/gamupabebosuwobutotigik.pdfIn PDF document text
- http://anton-joyeros.shopcloud.es/ckfinder/userfiles/files/29574119351.pdfIn PDF document text
- http://awkontrakt.pl/ckfinder/userfiles/files/65999952738.pdfIn PDF document text
- http://educaholistica.com/resources/img/imagesck/files/pasusujed.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139ee219ea09---1108852561.pdfIn PDF document text
- https://globaltranslation.com/demo/global_translation/beta/userfiles/files/41824781507.pdfIn PDF document text
- http://vuason.vn/upload/files/waxerisizijoguxuko.pdfIn PDF document text
- http://boston.pl/fck_pliki/file/82250589726.pdfIn 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_off00010403.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10403 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011c15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C15 | 19200 bytes |
SHA-256: b9b32d7c46fd0b1c6bdd5e2bc88e4c5870dbb680b325775e8928f7e85135f832 |
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font_02_sfnt_off00014e2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E2E | 10984 bytes |
SHA-256: b418cb293bf69594b2eaab47109b18b9a9487217bdbaeef5d3ff5bb441bb46ab |
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