MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of links, many of which point to compromised websites hosting other PDF files. This behavior is indicative of a link farm used to distribute malicious content, likely as part of a phishing campaign. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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 http://wisdomtours.net/upload/file/wiworu.pdf
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a42d885fe6d---zefinavifupibi.pdf
- https://yarpaket.ru/userfiles/file/bibazezukulopivikeku.pdf
- http://kiiga.ru/userfiles/file/divuja.pdf
- http://lindendirect.com/ckfinder/userfiles/files/zanakapepusepozafozu.pdf
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c884070e773---64868625525.pdf
- http://springbook.no/files/gojowodekixuv.pdf
- https://pametnidom.hr/pametne_kuce/userfiles/file/63828801864.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7b5bfec00a---lufowesiva.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/40f44509162d2e99cc43f3f75cc900c7/zixepigobamupila.pdf
- https://habrit.tw/ckfinder/userfiles/files/jiwugutapinejozovutew.pdf
- http://hasanmasat.com/ckfinder/userfiles/files/davilisepodote.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/58755d707e628bab06ffce498aa7140a/28783945552.pdf
- https://cosplay-expo.it/ckfinder/userfiles/files/3491769002.pdf
- http://abwmarlboropike.com/uploads/files/tibuvefutokavemun.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/f3e053e2b1ddcd2b1e54b6c8aba46a29/54699948556.pdf
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/9a4b7b826c79c1c27af9a76896066a0f/jonapaveriferadekomenow.pdf
- http://twfbs.com/ckfinder/userfiles/files/89746424739.pdf
- http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/7bfe1ae8f075e971c4a2774622d021c9/73009531992.pdf
- https://rajakeempat.com/contents//files/liropigeboresuwobinumu.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c181e1d179f---92339477422.pdf
- http://breakevenpoint.pl/uploads/editor/file/64775619471.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609aaa7e85fa5---76023063381.pdf
- http://industrialdevices.in/uploads/zetewefafufozanukoxat.pdf
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160789621740ca---fefamenofifomaf.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=companies+that+support+alec+2020
- 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_off00010346.bin8f2490279cf72e65862ceefc9eaf22744165537d13ef487236e1fa24c38d755e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10346 | 11012 bytes |
font_01_sfnt_off00011cb6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CB6 | 16792 bytes |
font_02_sfnt_off000134c8.bin7762bf1effb4b53ba0091015a9b92ea057331d43c147c010b560833bb5cfdd6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134C8 | 17872 bytes |
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