MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many hosted on compromised or disposable domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. The presence of multiple PDF-specific heuristics related to URI and link farms supports this conclusion.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://ketchas.ru/uplcv?utm_term=what+are+biofuels+produced+from PDF link annotation
- https://melz-feu.ru/upload/bujiwudu.pdfIn PDF document text
- http://goldenpeak.it/userfiles/files/gopepodurabemijezumisurem.pdfIn PDF document text
- https://vadihosting.com/calisma2/files/uploads/16600476431.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16119b8438c3b8---zobebavogada.pdfIn PDF document text
- https://meritumptt.pl/dokumenty/file/mumufodovemidipim.pdfIn PDF document text
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/n2mf41ekbdhhgsj73lhp14an36/54757808744.pdfIn PDF document text
- http://wooshin.kr/uploaded/file/173807527160a22dd672290.pdfIn PDF document text
- http://vnos.vn/app/webroot/uploads/files/94078750552.pdfIn PDF document text
- https://mk-sito.it/uploads/file/517544695.pdfIn PDF document text
- https://ijaetis.org/ckfinder/userfiles/files/13748509152.pdfIn PDF document text
- http://ventmetal.ru/userfiles/files/kisesib.pdfIn PDF document text
- https://gikguamerica.com/userfiles/file/najeni.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16077e12e1aef2---bolewuselironi.pdfIn PDF document text
- http://merwepizza.com/upload/file/nutexuzipijosezodakobajop.pdfIn PDF document text
- http://avrig35.ro/uploads/fck_editor/file/17504674304.pdfIn PDF document text
- http://marlin-aquarium.ru/ckfinder/userfiles/files/zolobefazukoxep.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160860e7f65c8f---tuxofazedosokin.pdfIn PDF document text
- https://ekselantechnology.solutions/ckfinder/userfiles/files/54969984100.pdfIn PDF document text
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/h2m7oi2tpv0d827iv9cnkft5tb/lujibe.pdfIn PDF document text
- https://promobryansk.ru/userfiles/files/84593752015.pdfIn PDF document text
- http://axiomestates.com/userfiles/file/kixozuzeregurutuzatefodet.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_off0000bd65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD65 | 11012 bytes |
SHA-256: 832bea3f6e75d209fbf15622b4874d17a6990d70b92e2c3d007f988b6e5449a1 |
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font_01_sfnt_off0000d6ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6CA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eedc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEDC | 17268 bytes |
SHA-256: 663f59c6ee7aeddca8c1df2d1b035dcc4b53120f3a2e3a6d0da1b84e7ed7b1c4 |
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