MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links to external websites, many of which are hosted on compromised CMS upload directories or appear to be part of a link farm. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of many external links strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://ytlcases.com/userfiles/file/45756351247.pdf
- https://communeouchamps.fr/userfiles/file/9808570117.pdf
- http://doggystylzgrooming.com/admin/photos/file/vofuguzopirufijili.pdf
- https://aartipalette.com/userfiles/file/daxuruwuwebonasoxagog.pdf
- http://dgjinhak.kr/DATA/upload/files/202105270626466385.pdf
- https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/67f7876408628fd56d2386fb161aca19/tenizib.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160742dd14d805---pasabobukotadunapa.pdf
- http://tragiaocolamsapa.com/userfiles/image/file/ramanovot.pdf
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/6ea3eeeac67856860716088b7b2b9e85/23453466781.pdf
- https://cgeminfos.ma/upload/file/faxuwidukin.pdf
- https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/p8h8b6m2leiiflic82kt2l2810/52496163429.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c5cdd3c4300---ravesotovobuj.pdf
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608c350b75c5e---10717998486.pdf
- http://forter.vn/hinhanh/file/wotose.pdf
- https://designcoordinators.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6bb8b3494---gibaraxemaxelim.pdf
- http://kcde.kr/userfiles/file/nodubigomuvokazabuzatibu.pdf
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609a165901b87---jabufaba.pdf
- http://feg.vn/uploads/files/nikoxujelaratikeninikulaj.pdf
- http://stjconsulting.it/userfiles/files/kigalujitejedifegajisun.pdf
- http://alfavs.eu/userfiles/file/viwipebizupisoloxu.pdf
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099f65949a66---52404115850.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16098ceb392ab0---57800408154.pdf
- http://lakehighlandsrw.org/clients/863582/File/kunewewolo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=hyperglycemia+can+be+caused+by
- 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_off0000f3a8.bin07a4d1f91224bfd889616a4419909940ef9e50c1f2c8a204a2998d71d06d50d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A8 | 16296 bytes |
font_01_sfnt_off00011de5.binfcee983618420483bdd67e52e09031b3b1b3f5aa8021004ea97459882b051151 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DE5 | 10984 bytes |
font_02_sfnt_off000136e6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136E6 | 16792 bytes |
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