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 disposable hosting and are structured as a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as a phishing trojan. The presence of compromised CMS upload links further supports the malicious nature of the hosted content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
Heuristics 6
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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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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://wemservice.com/ckfinder/userfiles/files/sagepubajebisotivapujefa.pdf In PDF document text
- http://obkladacstvikolar.com/content/19678324071.pdfIn PDF document text
- http://avandcie-energy.com/ckfinder/userfiles/files/98840102953.pdfIn PDF document text
- http://richmediahouse.com/admin/uploads/file/jefexasexajuxinipudu.pdfIn PDF document text
- http://marketypik.pl/zdjecia/fck/file/81228442037.pdfIn PDF document text
- https://chupwo.com/editor_upload/file/lujujibazake.pdfIn PDF document text
- http://architetturaurbanistica.it/userfiles/files/dozeroxujoped.pdfIn PDF document text
- http://myrbacken.se/login/ckfinder/userfiles/files/49980800923.pdfIn PDF document text
- http://studiosimonepantaleo.it/userfiles/files/bikosutuj.pdfIn PDF document text
- http://hzaidele.com/images/upload/File/18585291023.pdfIn PDF document text
- http://eortak.com/img/fck_temp/file/fotora.pdfIn PDF document text
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161367952c3ea1---66332470604.pdfIn PDF document text
- https://zhavezbozi.cz/data/file/93694630096.pdfIn PDF document text
- http://alanaf.ru/userfiles/files/vomofe.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612fec832d1e9---lexusejamilavaxo.pdfIn PDF document text
- http://silver1979.com/upload/file/daxapeludakifezimuf.pdfIn PDF document text
- http://wernitznigg.at/files/wupefomok.pdfIn PDF document text
- http://pincailight.com/zk/UploadFile/file/2021090417451173499.pdfIn PDF document text
- https://ibshospitals.com/userfiles/file/86237250021.pdfIn PDF document text
- https://ap-qatar.com/userfiles/files/611693184.pdfIn PDF document text
- http://wittymall.com/multimedia/userfiles/file/95073619798.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/1029985b9d070d4febe24e6c34da76dc/22503494450.pdfIn PDF document text
- https://funke.be/data/file/buberubipoduwujufilike.pdfIn PDF document text
- http://dzirerealtors.com/uploads/vijitegotek.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=safest+web+browser+for+androidPDF 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_off0000f94d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF94D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001115f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1115F | 18744 bytes |
SHA-256: f280d4bac785fca528a9a6c500e0d43d68c1367c39c9c6add7ddc1ec5c508a09 |
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font_02_sfnt_off000141c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141C9 | 10600 bytes |
SHA-256: 7c097499f1c230cf1d6a5a63796bbd449c89a05f3454a94db3fd4f62bc8739d8 |
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