MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with multiple URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, despite one being marked benign, contribute to the overall suspicious nature of the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://dydlhx.com/upfiles/file///bopusiwan.pdf In PDF document text
- http://thehedgerowchronicles.com/ckfinder/userfiles/files/topomorovuvomupolukufi.pdfIn PDF document text
- http://parmalab.it/userfiles/files/mozokolamun.pdfIn PDF document text
- http://julianina.de/upload/file/31545673579.pdfIn PDF document text
- http://kaies.cn/upfiles/file/zubepabeg.pdfIn PDF document text
- http://kdwatch.net/upload/files/2021091710575911.pdfIn PDF document text
- http://colorfusion.us/admin/images/file/tevaxojosumujebe.pdfIn PDF document text
- https://4of100churchstreet.com/assets/media/files/28678821289.pdfIn PDF document text
- http://ccforum.kr/uploads/file/1631580657.pdfIn PDF document text
- http://studiodugnani.it/userfiles/files/rixadawiximexe.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161413851e496b---22774463054.pdfIn PDF document text
- https://totalsewa.com/userfiles/file/nodumulafezorakilotajorab.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135fc2d2ea6d---zejawigubafulesuzilepikev.pdfIn PDF document text
- http://caythuocdangian.net/images/files/zoroxo.pdfIn PDF document text
- https://ecodiagnost.com/ckfinder/userfiles/files/85011073538.pdfIn PDF document text
- http://hurtowniagrafit.pl/userfiles/file/ketamakif.pdfIn PDF document text
- http://pretaporter-pegah.com/userfiles/file/xepolajalijegine.pdfIn PDF document text
- http://pnlestari.com/visitbali/image/files/kekobuwifo.pdfIn PDF document text
- http://cambresisemploi.fr/ckfinder/userfiles/files/kidovarejebezotebepi.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/161430fae80560---dapuwibosolotifefi.pdfIn PDF document text
- https://flomogroup.com/upload/files/renetufaremolaf.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=install+apk+files+on+pcPDF 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_off0000d50b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD50B | 18440 bytes |
SHA-256: d4923c1cfef8370823be897b5ca7771fb61914b482aa363d417c6fe2409b1461 |
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font_01_sfnt_off0001050e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1050E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011d25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D25 | 10416 bytes |
SHA-256: d49bf08e909cf9ac10be4680177edfa2c2a628d5895949f26daef617feedf69e |
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