MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as a phishing trojan. The file contains numerous links pointing to compromised WordPress uploads and disposable hosting, indicating it functions as a link farm. The embedded URLs suggest an attempt to redirect users to malicious sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://laborke.ru/uplcv?utm_term=clear+sperm+means
- http://okfilm.kr/userData/board/file/fukuf.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a36ed937bc2---juxok.pdf
- https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/17dkme9d6bodg8e1dlsci6gtlo/40291564168.pdf
- https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/8702f27822eb3bfcebe5307a689cb8cd/79860458415.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/ecad6ccfa3b0ed95004b8023bcd29f0c/sobolisimonex.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160789331134b0---fezusilezexeveb.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f24fa2136b---2560027392.pdf
- http://lamachine.nl/userfiles/file/8710463834.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e99c4168b---82330974714.pdf
- https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/0c408fae73b4c972750310f7425cb9db/28770328622.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609469ec216c9---39151663769.pdf
- https://davaocarrental.com/images/file/25616988798.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b429accd2---74308654167.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/qohoqjm58hi4njo9vsvrhdrf81/nowirigekip.pdf
- https://fablab808.com/nbloom/fckuploads/file/82621364433.pdf
- http://ilovehikari.com/uploads/files/givofotenexujuk.pdf
- http://bigsvatcharasith.com/userfiles/file/zepijakikar.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/2156666fc09ec363534fa97a21f09a1e/jotadewukovefivuz.pdf
- https://www.bakirkoytemsilcisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f17e5ea28c---fuxaguwivunasipevubeg.pdf
- http://kawoka.com/userfiles/file/45172464564.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/t9qnh429d5jdt59oqgah267u4q/pirenakirumetuximogaz.pdf
- http://anhuifan.com/upload_fck/file/2021-5-3/20210503035531206608.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5c568db72---84500665124.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb357b2337---89911445694.pdf
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/34dddf835813ec6055accfd379560dc0/lagolipet.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_off0000ee84.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE84 | 16792 bytes |
font_01_sfnt_off0001069b.binf4c56e6ee070b97b6db28300d5fce0bf9daf3b946b9c78486421403a4799b9bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1069B | 10132 bytes |
font_02_sfnt_off00011d30.bin15cff315b66744daea2168908ec2d66d325fceed39f770a15f9959f55206e596 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D30 | 16336 bytes |
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