MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to potentially compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall structure align with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 http://andlupa.com/userfiles/file/kejipupofomapumamexibov.pdf In PDF document text
- http://2016.letnifestiwal.pl/ckfinder/userfiles/files/64979266430.pdfIn PDF document text
- http://ranjitabiswas.com/userfiles/files/sukametexivomig.pdfIn PDF document text
- http://yesfabric.com/images/upload/File/95638663615.pdfIn PDF document text
- https://losaltos.com/wysiwygfiles/file/luvoguwibokam.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/febarevibitekufitij.pdfIn PDF document text
- http://medizator.ru/ckfinder/userfiles/files/60835574940.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/wenamizuvapumoxokomej.pdfIn PDF document text
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613933ca4b46f---lomovevulewemanowitopo.pdfIn PDF document text
- http://turbotechnik24.de/userfiles/file/ruzeserazexuwu.pdfIn PDF document text
- http://freeorden.com/media/file/45516194923.pdfIn PDF document text
- https://nmcs.ca/userfiles/files/91626054311.pdfIn PDF document text
- https://mmgrowersg.com/ckfinder/userfiles/files/dugigawotikibozexuv.pdfIn PDF document text
- http://seamacros.com/upload/file/wunelajinebudawemuxof.pdfIn PDF document text
- http://www.chubsorn.com/file/files/12807068241.pdfIn PDF document text
- http://gonganmi.com/userfiles/file/40028108386.pdfIn PDF document text
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/161374e991adbe---susejulufuwubirawasamaf.pdfIn PDF document text
- http://prosefkuchare.cz/userfiles/misiwofa.pdfIn PDF document text
- http://nesthomes.in/userfiles/file/72585151897.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16136881439a42---34226059305.pdfIn PDF document text
- http://mindentudor.hu/userfiles/file/35368862113.pdfIn PDF document text
- https://dolupin.com/calisma2/files/uploads/dorolerige.pdfIn PDF document text
- http://0225674989.kad.tw/kads/ckfinder/userfiles/files/wivugokad.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=i+love+you+novel+by+rohit+sharma+pdfPDF 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_off00010e75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E75 | 11132 bytes |
SHA-256: f36a4cee6b33cf40c589cd00119486b94361b599ba8ea116cb512d968feeea56 |
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font_01_sfnt_off0001280a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1280A | 20752 bytes |
SHA-256: c2849910a615939d1d5f17354ee26bf20e1e0e92fc38d2ace1c381af52f0f126 |
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font_02_sfnt_off00015f27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15F27 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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