MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites and disposable hosting, likely to obscure the true destination or to host further malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics confirms this behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609873b9479ff---purafi.pdf
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/8efed27edeb5c11d036c9d29b0978a26/godojujezuzaf.pdf
- http://attlas.center/userfiles/file/zejoveberikivowibosekod.pdf
- http://food-cloud.com/home/food-cloud/www/site//site/data/files/nidef.pdf
- http://inarchengineering.it/userfiles/files/joxexewokujukizaborikize.pdf
- https://congchung7.com/upload/file/2035842966.pdf
- https://aonetreks.com/uploads/file/liwagon.pdf
- http://doubletroubels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbc9f12747---81766368717.pdf
- http://skogsformedling.se/bilder_umeny/File/43168100531.pdf
- https://aawyx.com/sites/default/imageuser/file/jiribefafos.pdf
- http://yjccnc.com/upload/files/79681220797.pdf
- http://sysquare.com/UserFiles/files/75963953541.pdf
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/2dar8mdr2t4e3d45sd3h8t9rt6/55326496435.pdf
- http://specimport.by/files/files/44248172911.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160923529c60c6---zaduxirivadomi.pdf
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/b1e9dd9cc2f8926d33a5cd7ac1a47e14/57470795560.pdf
- https://anyimaker.com/upload/users/files/lusirofaxa.pdf
- http://colescastle.com/clients/875019/File/watadujadebaze.pdf
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/ev4ml23dkrcepgbkn2stjr2dn4/sikugivigarumufe.pdf
- http://agro-pasz.pl/ckfinder/userfiles/files/77322853794.pdf
- http://gdfsztal.com//uploadfile/files/91339983302.pdf
- http://31kouqiang.com/userfiles/file/1628299548.pdf
- http://nuraski.pl/wsg/userfiles/16166772563.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=cambridge+igcse+business+studies+textbook+answers
- 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_off0000ed12.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED12 | 16792 bytes |
font_01_sfnt_off00010524.bina8ee73cbd69219bdbcd0c9fdf5b4ed6833314716dd1e7f2274ac13e61804a993 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10524 | 20780 bytes |
font_02_sfnt_off00013a74.bincd901b2cc03b85e102aaaede793d82639ee855c76fbb829c028b4477d9799fdb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A74 | 11220 bytes |
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