MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It functions as a link farm, directing users to numerous external URLs, many of which are hosted on compromised or disposable domains. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings indicates a deliberate effort to obscure the malicious intent through a network of seemingly unrelated websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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 http://playoz.com/ckfinder/userfiles/files/jagisinipirapemofikixe.pdf In PDF document text
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16138d683b6ac8---guzimivare.pdfIn PDF document text
- http://aweibel.com/Photo/file/82585740356.pdfIn PDF document text
- http://chunmianxian.com/upfolder/e/files/20210906075554.pdfIn PDF document text
- http://unternehmensberatung-hegenbarth.de/userfiles/file/17896754237.pdfIn PDF document text
- https://maviet.vn/upload/files/zugab.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/0a8630d711f69a5ead91e2fee0d4f941/tuxedidanefugorodozirone.pdfIn PDF document text
- http://lsphc.com/userfiles/file///fiwix.pdfIn PDF document text
- http://farmaciafasolis.eu/userfiles/files/58059557080.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/c170a3ca5dcd6c80da3a0216d90757df/50000216784.pdfIn PDF document text
- https://australiancaravancentre.com.au/application/third_party/ckfinder/userfiles/files/vebuxasid.pdfIn PDF document text
- http://centromp.it/userfiles/files/29851225158.pdfIn PDF document text
- http://tuclubcr.com/campannas/file/bojakikufufasarasupozevij.pdfIn PDF document text
- http://naim.naparts.com/images/fck/file/42623314870.pdfIn PDF document text
- http://waterlootour.com/FileData/ckfinder/files/20210902_4FE60589745B3257.pdfIn PDF document text
- http://roseeskin.com/userfiles/file/20210904215931.pdfIn PDF document text
- http://dongduong.net/Images_upload/files/58766270876.pdfIn PDF document text
- https://ciar.vn/uploads/image/files/70280052545.pdfIn PDF document text
- http://pevak.info/UserFiles/File/wegixirixu.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/20a635d5f1352477cf2907bee5a67a69/sigegimubeferefam.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/qjt1cg47brfji98n91t1ehvgiv/fejififuwumidanaboposajom.pdfIn PDF document text
- https://stephankeppel.com/userfiles/file/80419003408.pdfIn PDF document text
- http://genarchi.com/data/temp/file/71530377526.pdfIn PDF document text
- https://kalimati.in/userfiles/file/17855961152.pdfIn PDF document text
- https://www.leasing.net.in/ckfinder/userfiles/files/jozetabotomelifexupuxiwi.pdfIn PDF document text
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16140473eacd53---didutumenof.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=android+games+hacking+app+without+rootPDF 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_off0000b52c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB52C | 11176 bytes |
SHA-256: b001d5104d2ccda380d05193974d02a3d6e1a874770668f18b61fe742481f59d |
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font_01_sfnt_off0000cf01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF01 | 17592 bytes |
SHA-256: d800bdecd8e0fa10bc51cb1d4a4aeda87e4936d788e6b6b21c98c7160d656e1b |
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font_02_sfnt_off0000fc62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC62 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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