MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised websites and potentially malicious files. The presence of multiple links to PDF files hosted on compromised CMS upload storage suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://medtek.vn/storage/file/xezar.pdf
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/96e3edd3ecf56c1592bc9ae0bfac7e04/xosaxokogedepi.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b3553acfd1---91521219804.pdf
- https://cvconstructionsgoa.com/pharma/admin/userfiles/file/gekidulovudedu.pdf
- http://fecirturizm.com/resimler/files/35077247144.pdf
- https://nevisnews.com/userfiles/kawepipudakoguragujaki.pdf
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/46867f35332f64c6eb5695c1248ea442/73505231334.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/drrovuuph74h3n8le8oi17bta3/tukijudeg.pdf
- http://fobosgrunt.ru/files/ckfinder/files/xamumewiboserifizojavu.pdf
- https://bulgariapools.com/contents//files/zomijegupuguzigajeloginu.pdf
- http://ferramentabelleggia.it/public/file/66667321458.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7a27e7074---watupuzopokatijakoze.pdf
- https://tiklatakip.com/calisma2/files/uploads/1456048400.pdf
- http://www.tomasjelinek.com/img/pub/file/81452695340.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/a3754eb52c470aee75a700aafe62ad25/xavedagaveka.pdf
- http://wabasnb.com/files/fckeditor/file/213222001160ba4f6862473.pdf
- http://haiphongcontest.com/images/files/faxapivosebef.pdf
- http://vtvxm.vn/userfiles/file/losife.pdf
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a59af0760a6---89279227932.pdf
- http://gilbertthomasreunion.com/clients/5/5f/5f56fe696be94dde62972871c8a9bc28/File/9089043350.pdf
- http://softwarefactory.nl/images/file/ravevurupaporuru.pdf
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/2qfrptgpqr2gcpkhmi674nnqp3/51168907382.pdf
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/38d2qqbgar7vub2gjrpt8pch53/lajek.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=brooker+biology+5th+edition+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_off0000c88b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC88B | 16792 bytes |
font_01_sfnt_off0000e0a2.bind47f4b2b290bd9feb01615e27061f0e16ad4696ca2ac3a3d68bdf00d9849fd56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0A2 | 10980 bytes |
font_02_sfnt_off0000f9aa.bin37b877fb2203fc5f5fb751fe33bde831bcab372efce7a6311939e7f6a8c7d493 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9AA | 17388 bytes |
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