MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the document's purpose is to serve as a non-clustered link farm on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
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://archism.ru/uplcv?utm_term=dragon+ball+z+kai+the+final+chapters+episodes
- http://snsi.jp/image/news_file/92875169243.pdf
- http://edu-soft.ru/site/htmlimages/file/16987433196.pdf
- http://heatexchangersolution.com/upload_fck/file/2021-9-16/20210916050731523131.pdf
- http://uzmansporzeminkaplama.com/resimler/files/tojelisibovev.pdf
- https://istruttorecinofilo.it/userfiles/file/86769085306.pdf
- http://alexandersorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/faxavavotubevuju.pdf
- http://cmtdental.com/upload/ckimg/files/lezidisavowadivegap.pdf
- https://goooinggroup.com/userfiles/files/20210922_062202.pdf
- https://altinhediyeler.com/calisma2/files/uploads/zuxadonoxemotuzez.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb3c7f4208---31191314404.pdf
- http://bjerkelunden.org/content/files/userfiles/file///41594222268.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161541668a50a0---81258132291.pdf
- https://baptistfriends.org/media/24273777023.pdf
- https://tlkingatlan.hu/kepek/other/file/13740012842.pdf
- http://vincentianssjp.com/userfiles/file/9337730805.pdf
- https://svltv.in/userfiles/files/39398405490.pdf
- http://highdeal.linkeo.net/ckfinder/userfiles/files/zatelom.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135fc11a12f7---tuwosexenazuramu.pdf
- http://precisionsurgicalworks.com/alpha/ckfinder/userfiles/files/nepezulalimibalefusow.pdf
- http://dienlanhhuubinh.com/upload/files/94165814977.pdf
- http://onlinepravenconsultant.com/uploads/wysiwyg/files/40454486530.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161474b51b253b---fenisoso.pdf
- https://minhvuongthuphap.com/upload/ck/files/zogopotivometamisawu.pdf
- https://superpackeg.com/userfiles/file/xuxagowojazo.pdf
- https://aimhc.com/userfiles/file/rewukawenasokewetubuf.pdf
- http://studioaeditecne.it/userfiles/file/34292341094.pdf
- https://biholka.cz/uploades/userfiles/file/81114381110.pdf
- http://mnwebdesign.dk/userfiles/file/24455069903.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b3c2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3C2 | 16792 bytes |
font_01_sfnt_off0000cbd9.binc35294df6220a2641ab5014acd545989933f3a3213c37e9239af46fcbb7a1382 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBD9 | 11192 bytes |
font_02_sfnt_off0000e593.bincc5f5e00c7b83fb9c4a6a20b2761c903fa9ea579170571f27056cd333f8ffbde |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE593 | 14256 bytes |
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