MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, forming a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. The primary function appears to be redirecting users through a series of links to ultimately reach a malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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=grave+defense+apk PDF link annotation
- http://prosefkuchare.cz/userfiles/85495953619.pdfIn PDF document text
- https://atavio.ru/files/file/54375435836.pdfIn PDF document text
- http://tensoinox.com/userfiles/files/fazavepiputuwijifep.pdfIn PDF document text
- http://terralis.eu/catalogue_dynamique/file/79041631258.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5532002cf---kofimetovedopirewalonutor.pdfIn PDF document text
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/161410b0c52e97---68008249072.pdfIn PDF document text
- http://aotwresort.org/ckfinder/userfiles/files/59898398555.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614129d5cf83f---nomapofasurab.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fcbeb70db7---47431464198.pdfIn PDF document text
- https://anitacalderon.com/ckfinder/userfiles/files/zomirola.pdfIn PDF document text
- https://alariel.be/userfiles/file/45596517437.pdfIn PDF document text
- https://angel-juicer.com/FileData/ckfinder/files/20210905_048F42674F094A6E.pdfIn PDF document text
- https://bikidi.com/UpFiles/WebEditorFiles/file/balotexi.pdfIn PDF document text
- http://maytinhtuyenquang.com/home/maytinhtuy/domains/maytinhtuyenquang.com/public_html/images/file/putenelak.pdfIn PDF document text
- https://middletonchambers.com/ckfinder/userfiles/files/ravite.pdfIn PDF document text
- http://myshopgroup.com/userfiles/files/48035506937.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/jvp53fadb5ga60tohekm8ra979/vogitotaxez.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/e1797de547c28c49c190e535c8603f55/definokatikepo.pdfIn PDF document text
- http://fireprovietnam.net/luutru/files/94761976770.pdfIn PDF document text
- http://5lovestartw.com/CKEdit/upload/files/34009856736.pdfIn PDF document text
- https://geelaboba.dswip.com/ci/userfiles/files/bubaninafudodafaxopiborag.pdfIn PDF document text
- http://chatyzvule.cz/uploads/67775136692.pdfIn PDF document text
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613aba3d1ab53---pajinufapumuneremijotulus.pdfIn PDF document text
- https://s-serviss.lv/userfiles/file/9252353978.pdfIn PDF document text
- http://hyosangjo.com/userfiles/file/20210908205048.pdfIn PDF document text
- https://ukmriptek.org/codeIgniter-hmvc/userfiles/files/42685031315.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_off0000f5f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F4 | 18024 bytes |
SHA-256: 233c175518623532686819f6cfea4c822df80ca1275871f06ba511745ff0b492 |
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font_01_sfnt_off000124c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124C4 | 10332 bytes |
SHA-256: 1a60a8e6ba83075e75a18717f8a0541d8e64cbf66f840a417b0a36fac893bdda |
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font_02_sfnt_off00013c39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C39 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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