MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised websites, suggesting it's part of a link farm designed to redirect users to malicious content. The presence of multiple distinct hosts and the use of 'utm_term' parameters indicate a potential phishing or SEO poisoning campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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://tigapilar.com/upload/files/84830746799.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cdf7c30003---vewatuvoduvu.pdf
- http://www.dereformasenalicante.com/archivos/files/19727528386.pdf
- http://poorclarescork.ie/images/53109644191.pdf
- http://kiapelhrimov.cz/UserFiles/File/bakapexazorejiwago.pdf
- http://braciszewska-klimek.pl/fck_files/file/62030906933.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/noo73ugsrgt6s1ucgftp7k4cd7/260287053.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac7af9fd1e---95360173541.pdf
- http://brandnewgoods.net/userfiles/file/40320689625.pdf
- http://modamoda.nl/uploads/pic_lib/file/vakebofesanadawudezis.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/ad075fa7dd4f89cd2e5bcbcdc17757d3/bamijagijukex.pdf
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/595eb3e8ab816274dadc1b1a0d819ba1/12750773290.pdf
- http://indecomavo.pl/inc/wigat.pdf
- http://tgtech-auto.com/userfiles/file/76773550917.pdf
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/bqdkhmbuqssr9fpr072rj20hdh/sejanog.pdf
- https://cometsecurity.in/admin/userfiles/file/sexavibejoxol.pdf
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160907266beae9---bujida.pdf
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/c091eecef6bde089f9094718411cf7fd/72856484696.pdf
- http://hopkinshigh1988.com/clients/75739/File/libamexizikaxugoxepewipu.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160786938bd519---68624604492.pdf
- https://arch.ua/ckfinder/userfiles/files/22162655460.pdf
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b58321ee4c---rerana.pdf
- http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/xaxumijugemosowikivito.pdf
- https://cordovajewelry.com/images/file/49794377024.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=company+not+getting+married
- 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_off0001fc3e.bin927ac0893403b64d0d7609f9841e7c0223d648dea05b57b6df1daf023c714aac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FC3E | 18572 bytes |
font_01_sfnt_off00022cce.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22CCE | 16792 bytes |
font_02_sfnt_off000244e5.bin2a593838081be5a4c5c24130006cc0e65849c58b16d4bad510c5dea7cb1aeaee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x244E5 | 10664 bytes |
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