MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a malicious PDF detected by ClamAV as Pdf.Phishing.Trojan. It contains embedded JavaScript and numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a phishing or malware distribution campaign. The embedded JavaScript likely facilitates the redirection to malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://rpdev.org/ckfinder/userfiles/files/pikisuzomupavijeguz.pdf
- http://dichvumucin.com/upload/ckupload/files/xoxosiju.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16134947244600---tuzoxosavegasarujametosib.pdf
- http://immobiliareborghi.com/userfiles/files/filegurevelogigulugod.pdf
- http://king-tableware.com/uploads/files/202109140531583472.pdf
- https://czus-lukasa.sk/userfiles/file/94225290761.pdf
- http://studiosiciliani.eu/userfiles/files/48780290890.pdf
- https://eventpro-kontraktorpameran.com/uploaded/files/7126367709.pdf
- http://artvideo74.ru/upfiles/files/149245104.pdf
- https://takitech.hu/userfiles/file/87462127610.pdf
- http://atek-ent.com/upload/file/11390241182.pdf
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132ebea6bc93---wugaduwokalamub.pdf
- http://turystyka.powiatlubartowski.pl/admin/ckfinder/userfiles/files/78626322194.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16134b07fee516---69694683654.pdf
- http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/kifavewaziguwamopumi.pdf
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613100c3399c9---kerobotomawojinuseted.pdf
- https://ximangcampha.vn/upload/files/58813598500.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/n3974k6bhk8tdbf82t97bp72l6/81734682557.pdf
- http://gpkoaee.ru/ckfinder/userfiles/files/31532222820.pdf
- http://nextgenship.net/upload/file/20210902163056161551.pdf
- https://braindevelopmentmaps.org/userfiles/files/34944990430.pdf
- https://rubyyadav.com/nbloom/fckuploads/file/domuvefejigudofix.pdf
- http://csc0532.com/userfiles/file/20210903230208_kpf62l.pdf
- http://herningbadintra.dk/app/webroot/upload/files/walizadejigekoxogemevuwo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=free+lock+screen+wallpaper+for+android
- 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_off00010192.bin83d7151ab6fea3c53672f862b94c242a02164465cd00dd599ac1cd3bc1f6000c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10192 | 18688 bytes |
font_01_sfnt_off0001324e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1324E | 16792 bytes |
font_02_sfnt_off00014a65.bin32faea306f6d77f5f4e927a19bfee83340a0b591a6052e6a1c8cc3167e94862f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A65 | 10668 bytes |
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