MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised WordPress uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the overall structure point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://synerhu.ru/uplcv?utm_term=sky+safari+game+download PDF link annotation
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1614286d2450b3---22761252541.pdfIn PDF document text
- https://kirmatas.com/userfiles/file/89959744016.pdfIn PDF document text
- http://masterkontroll.hu/ckfinder/userfiles/files/bonagepovirixegulefegosek.pdfIn PDF document text
- http://problemconsulting.com/img/download/files/bekesolube.pdfIn PDF document text
- https://dunaweb.co/bg_image/files/15416435296.pdfIn PDF document text
- https://icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/bopukojuneremomad.pdfIn PDF document text
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/f5808c0af5a6284e6d15aec7fcad2fee/kixaberopepuxuramomexex.pdfIn PDF document text
- http://1careglobal.com/upload/files/laromafulanututovamebetiz.pdfIn PDF document text
- http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/xulegod.pdfIn PDF document text
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/4k4tqnoinortfpbejo8s8g662q/9387091820.pdfIn PDF document text
- http://huabulaw.com/uploadpic/2021-9/file/2021091122055273499.pdfIn PDF document text
- http://ngnjl.com/userfiles/files/99141630657.pdfIn PDF document text
- http://mmsmarin.com/imgimage/file/vobuxuxiraxofur.pdfIn PDF document text
- http://yds-wcv.jp/free_images/files/zopozunutakipe.pdfIn PDF document text
- https://pecsikult.hu/files/file/99024352071.pdfIn PDF document text
- http://lapempi.nl/ckfinder/userfiles/files/27458305593.pdfIn PDF document text
- https://weldingportal.it/userfiles/file/dokariveliribuzol.pdfIn PDF document text
- https://isleo.com/i_photos/file/95554027262.pdfIn PDF document text
- http://denki-shonan.com/uploadsfile/jewogadededetowabezibujoj.pdfIn PDF document text
- https://traveletrust.com/basefile/traveletrustcom/files/wemazibejezupomokumetino.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16132c0215e4de---felatelixixed.pdfIn PDF document text
- http://pttaccounting.com/userfiles/files/41248354427.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_off0000c95a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC95A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e171.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE171 | 10968 bytes |
SHA-256: 04f65c7cc9ede92174d897261b40f0b08824fc8c0fe0c2943368601daab8f325 |
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font_02_sfnt_off0000fab9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAB9 | 16692 bytes |
SHA-256: 55cb519de1f76aadac700fae239cefadd04bf6ad3c57634120bb442a15afcb78 |
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