MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised or disposable hosting domains, as indicated by the 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery through these links. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://khangle.vn/uploads/images/files/99315185074.pdf In PDF document text
- https://webornate.com/viking1/uploads/files/jomajagudadevorujo.pdfIn PDF document text
- http://marchmontnews.com/imgs/file/46083152350.pdfIn PDF document text
- http://linza-market.ru/upload/files/sixejavumode.pdfIn PDF document text
- http://hcvitamin.com/webroot/img/files/27793742851.pdfIn PDF document text
- https://dynasty888.com/image/files/20210916_041803.pdfIn PDF document text
- http://bienchidan.org/uploads/files/6537618294.pdfIn PDF document text
- http://www.jysunshine-hotel.com/up_files/file/94350985830.pdfIn PDF document text
- https://hanedantoptan.com/upload/files/lobututiz.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/emv9pp7u5g7ovnhak6mk6uhudl/nunelulojuzunisusup.pdfIn PDF document text
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16141dc52aa842---93915809541.pdfIn PDF document text
- http://esllearningbydesign.com/app/webroot/files/file/pobeluvi.pdfIn PDF document text
- http://pro-group.ru/userfiles/files/71256308741.pdfIn PDF document text
- http://progetec.org/userfiles/files/lukesetejoluse.pdfIn PDF document text
- http://garderoba.sk/images/_file/nexasivenasovafolinor.pdfIn PDF document text
- http://rockefellersgold.hu/editor_up/85436870077.pdfIn PDF document text
- https://lifesmart.ro/ckfinder/userfiles/files/kixedeledobexazopagov.pdfIn PDF document text
- http://hftyby.com/upload_fck/file/2021-9-1/20210901205343475931.pdfIn PDF document text
- https://butagallery.com/userfiles/files/12271427628.pdfIn PDF document text
- http://carsonpokebar.com/uploads/files/47984556106.pdfIn PDF document text
- http://sourceandsecure.com/uploads/userfiles/file/fumowebozapatijunedofixap.pdfIn PDF document text
- https://btegypt.com/file/22101841799.pdfIn PDF document text
- http://daiwavn.com/uploads/image/files/sogat.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/av8n8089c3pecsn08qgaa9p7bj/bokuje.pdfIn PDF document text
- http://improntediteatro.it/userfiles/files/muboxuberovalusalerelite.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=ultimate+ninja+storm+3PDF 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_off0000c373.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC373 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000db8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB8A | 10576 bytes |
SHA-256: 31bde7c3b45d13a872e94203aeff3576cf1f1e6ee66ea3707ba04e78f206a16f |
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font_02_sfnt_off0000f3a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A1 | 17928 bytes |
SHA-256: 95cb1e4614cc91bf32902b9a16fc603e70e308a7b92ce2491956ab79dd71a193 |
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