MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to compromised or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classification further supports its malicious nature. The document body is heavily obfuscated, but the heuristic firings indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://oniceh.ru/uplcv?utm_term=download+survey+to+go+apk PDF link annotation
- http://rexant.by/upload/editor/files/pejit.pdfIn PDF document text
- https://kcss.hu/korosi/userfiles/file/juwameniwukufi.pdfIn PDF document text
- http://sity-luxe.ru/userfiles/file/rizipotebolenisunub.pdfIn PDF document text
- https://izr.fr/files/99014959490.pdfIn PDF document text
- https://linhquan-group.com/upload/ck/files/26639866708.pdfIn PDF document text
- https://matfplayer.com/calisma2/files/uploads/96284639206.pdfIn PDF document text
- https://airflow-skateboards.com/userfiles/files/94537868356.pdfIn PDF document text
- http://halongwave.com/userfiles/file/52366971385.pdfIn PDF document text
- https://vgi-vn.vn/app/webroot/img/files/67886618634.pdfIn PDF document text
- https://medicabg.com/uploads/wysiwyg/files/mededasudukubej.pdfIn PDF document text
- https://habrit.tw/ckfinder/userfiles/files/50511696324.pdfIn PDF document text
- http://www.me.ntou.edu.tw/ckfinder/userfiles/files/20210902_075330.pdfIn PDF document text
- http://sz-nuoyi.com/Upload/file/2021090800040171333.pdfIn PDF document text
- http://vip-cond.ru/userfiles/file/16549422646.pdfIn PDF document text
- http://jan-fotografie.nl/upload/files/97398817250.pdfIn PDF document text
- http://wyadonline.com/userfiles/file/95572131551.pdfIn PDF document text
- http://quetthe.com/upload/files/karotavuw.pdfIn PDF document text
- https://morethancars.eu/uploads/edytor/file/6162675574.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8323696aa---ninod.pdfIn PDF document text
- http://kameleonhastanc.hu/files/file/kupimufofudixalatun.pdfIn PDF document text
- http://brcassociati.com/userfiles/files/41598008150.pdfIn PDF document text
- http://qiangka.com/ckfinder/userfiles/files/rozomofa.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16138969a78c05---19313054267.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132616fd6581---litufupiwozeferakapured.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_off0000e714.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE714 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ff26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF26 | 19164 bytes |
SHA-256: 50081fb4015585c0d52a53c93cf9f3bb7e64d6432a56b7aa2dba9688625def33 |
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font_02_sfnt_off0001305e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1305E | 10932 bytes |
SHA-256: 944b2fb84de7ecc0b2351d9eb43fecb6510cecdc3566492c05c6dc4f812e772d |
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