MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links pointing to compromised WordPress upload storage and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and compromised CMS upload links indicates an attempt to host or distribute malicious payloads.
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 https://cructi.ru/uplcv?utm_term=addition+and+subtraction+of+similar+fractions+worksheets+grade+2 PDF link annotation
- http://mfcwestenkwartier.nl/beta/userfiles/file/80243859867.pdfIn PDF document text
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3a22cf15f---57784983947.pdfIn PDF document text
- http://lignumweb.com/site/webroot/uploads/files/59819365611.pdfIn PDF document text
- http://ruilong-ironwork.com/CKEdit/upload/files/9349215152.pdfIn PDF document text
- http://dgjst.com/upfile/file/zomelopesuvosuzuzenu.pdfIn PDF document text
- http://cuhs1981.com/clients/8/82/82ca37c076ec4232796cb58ed009bb3a/File/burasedebuzaxusoger.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611e3737b90dd---tijodoxawukefisiz.pdfIn PDF document text
- http://xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/6022103358.pdfIn PDF document text
- http://beloezoloto.ru/userfiles/file/bapofaj.pdfIn PDF document text
- https://campermagazine.tv/public/file/xizukuj.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/p46ihaefcb3gccafa9o1u4r0fs/72303270908.pdfIn PDF document text
- http://www.advokat.com/app/webroot/img/fck/file/gasadikut.pdfIn PDF document text
- http://textstricker.de/benutzerdateien/4564423553.pdfIn PDF document text
- http://balassalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/39142857195.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8b558e50f9---71150598408.pdfIn PDF document text
- http://ip-golubev.ru/ckfinder/userfiles/files/lipavex.pdfIn PDF document text
- http://thesnowmanicecream.com/ckfinder/userfiles/files/lurebav.pdfIn PDF document text
- https://chokysitohang.com/Uploads/userfiles/files/95666719737.pdfIn PDF document text
- http://wine-paraphernalia.com/files/winep/_repo/file/16042996474.pdfIn PDF document text
- https://guijek.com/userfiles/file/vubaze.pdfIn PDF document text
- http://vln.nl/files/file/15471548315.pdfIn PDF document text
- https://viratrip.com/basefile/travelasreviracom/files/ritaxuruzipuw.pdfIn PDF document text
- http://allg-gyn.ch/userfiles/file/25849280621.pdfIn PDF document text
- 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_off0000db3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB3D | 19416 bytes |
SHA-256: 310ae8f24579eaf9a3b3159cf52d7f4ef4bfa7fe6e2111f69648f7ca1a335414 |
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font_01_sfnt_off00010e0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E0E | 11440 bytes |
SHA-256: 7c00535dafb64a6dcbd95ca1203d17a16b2fba3abcf59803b5957a6e70db71b3 |
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font_02_sfnt_off000128da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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