MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, some pointing to compromised CMS upload directories, suggesting an attempt to host or distribute malicious content. The presence of a 'download button' lure further supports a phishing or malware distribution motive.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://art-lan.ru/uploads/assets/file/pesilukowasupa.pdf In PDF document text
- https://vietucmould.com/img-vietuc/files/17257073106.pdfIn PDF document text
- http://etasystem.net/userfiles/files/43872654374.pdfIn PDF document text
- http://chinalabware.es/d/files/nulelokasubedaraxurowew.pdfIn PDF document text
- http://tipsclubcr.com/campannas/file/mepobesubevul.pdfIn PDF document text
- http://pwr-tech.ru/userfiles/file/zizoxomogoguruxutite.pdfIn PDF document text
- http://pk-rowery.pl/user_pict/file/mebej.pdfIn PDF document text
- http://mywayrtk.info/userfiles/file/14136489370.pdfIn PDF document text
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/16134a9ac43649---wapomef.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161365e35782f7---sofenigikigupepizunepux.pdfIn PDF document text
- http://orvosvalaszto.hu/uploads/files/retowuvujekikukaxaleb.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1613c48ea6b0e0---bagejix.pdfIn PDF document text
- https://avigailpekelman.com/sites/default/files/file/29541499032.pdfIn PDF document text
- http://actinq.nl/upload/file/risavo.pdfIn PDF document text
- http://zh-huaxun.com/uploadfiles/files/35367580607.pdfIn PDF document text
- https://loonbedrijfschimmel.nl/userfiles/files/maboge.pdfIn PDF document text
- http://mopi.eu/ckfinder/userfiles/files/vumatevosotati.pdfIn PDF document text
- http://ilonew.tasksplan.com/ckfinder/userfiles/files/vumuxakozovumut.pdfIn PDF document text
- http://modnyi-buket.ru/uploads/files/94063153920.pdfIn PDF document text
- https://10kshot.com/customerinterview/ckfinder/userfiles/files/xesolagigisinepavemuv.pdfIn PDF document text
- http://sbriz.ru/userfiles/file/dufasovuduzijefebaj.pdfIn PDF document text
- http://waycreon.net/bhaskar/yii/upload/files/xumarakikov.pdfIn PDF document text
- http://gshosnab.ru/userfiles/file/wajajerexal.pdfIn PDF document text
- http://fedime.org/imagenes/2055957769.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=bypass+frp+add+2018+apkPDF 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_off0000d4f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4F0 | 17424 bytes |
SHA-256: 31892aae48141fdc30e71dd2011fca3e9df8992e5e93789184f6680f310c3a59 |
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font_01_sfnt_off00010263.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10263 | 10660 bytes |
SHA-256: 346384658057f744e200cd8b2bb81a887a2ac2a752688f54a582d24d3faa1a3f |
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font_02_sfnt_off00011b12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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