MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the PDF is part of a link farm designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://coretry.ru/uplcv?utm_term=android+sms+pdus PDF link annotation
- http://alpha-cp.com/userfiles/file/rixisetelufanofuwitirorur.pdfIn PDF document text
- http://polymer-optix.de/userfiles/file/73086187174.pdfIn PDF document text
- http://virtualcharityevents.com/vce_cake/files/files/pawexasuvixexosareriziku.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/ccd7m8spo13ksnqaunfkthj0ei/zesatuvurupexamarot.pdfIn PDF document text
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/bd33d8e9cfde3b33cb63ebb1b4067191/romeredi.pdfIn PDF document text
- http://fxmeat.com/upload/file/2f0d189eaa741827b4011104937d0fab.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/161361019c4f2c---mirib.pdfIn PDF document text
- http://skupka54.ru/upload/m/14985319808.pdfIn PDF document text
- http://855solution.com/htdocs/cljr/data/files/96673257776.pdfIn PDF document text
- http://alacarte-husum.de/userfiles/file/jaronuzotadabovujekewedi.pdfIn PDF document text
- https://hrmconsulting.biz/upload/files/musibexenugubasexig.pdfIn PDF document text
- http://eamenfaraz.com/cache/fck_files/file/dimobowotilulazetexavila.pdfIn PDF document text
- https://www.mds-horizons.com/upload/files/wowebifijolikun.pdfIn PDF document text
- http://falegnameriacastiglione.it/userfiles/files/tipabutukakelujuronomuj.pdfIn PDF document text
- https://santa.sg/images/users/00000000/files/27845125879.pdfIn PDF document text
- http://shangrilayunnan.com/ckfinder/userfiles/files/mokuki.pdfIn PDF document text
- https://hzautomatisering.nl/userfiles/file/31785787767.pdfIn PDF document text
- https://navliecky.net/userfiles/file/41948847891.pdfIn PDF document text
- http://www.hermosabeachbungalows.com/userfiles/files/jikijerosif.pdfIn PDF document text
- https://bonaparte.cappencms.com/templates/files/77203526604.pdfIn PDF document text
- http://pastoret.it/userfiles/files/tusemudef.pdfIn PDF document text
- http://xinchenfast.com/upload/file/tuvumipowawozarikuvas.pdfIn PDF document text
- http://velomagazin.hu/UserFiles/file/guravenosizur.pdfIn PDF document text
- https://mimpiindah2.com/contents/files/tugesurukimafaxutu.pdfIn PDF document text
- http://agecarekorea.com/ckupload/files/55432803524.pdfIn PDF document text
- http://cuanhuaabshanquoc.vn/files/resagitopuguzibarobate.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_off0000f3f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3F4 | 10196 bytes |
SHA-256: 57bdd4c42dc8f09f274349de9607200ac2cb5bd131cc6a0934c138d700c17873 |
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font_01_sfnt_off00010ab7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AB7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000122c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122C9 | 18116 bytes |
SHA-256: a127f081dd2d2289e96533dee86ac1f406686e2a1d2dccdfa471daf055f7fed0 |
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