MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for executing malicious code. Several heuristics indicate the presence of link farms pointing to potentially compromised websites, and ClamAV detection confirms it as a phishing trojan. The embedded JavaScript likely serves to redirect the user or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9885
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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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://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/v8clbp5iv7nhsi5fd88qit9cdb/zawudoxuv.pdf
- http://sro52.ru/uploads/files/40353798911.pdf
- http://taiwan-casters.com/userfiles/file/rerifexodowomijubujanifag.pdf
- https://profix.fr/ckfinder/userfiles/files/83036662991.pdf
- http://kimsanghun.com/upload/userfiles/file/2021932123438283.pdf
- https://coebmsf.com/userfiles/file/vemugexudo.pdf
- https://invision.buzyhub.com/files/91524031885.pdf
- http://stringquartet.biz/web/images/fck/file/jonudodugav.pdf
- http://teusz.pl/UserFiles/file/41230663670.pdf
- http://www.kickcommerce.com/userfiles/file/17240154831.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161377c048dc77---12159476000.pdf
- https://drrajanmahtani.com/userfiles/files/19797180449.pdf
- https://art4you.sk/editor_uploads/system/files/mimepidomoforamaruxigiju.pdf
- http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613dc0661352d---jarasej.pdf
- https://advance-pack.com/editor_upload/file/76363313070.pdf
- https://soenen-pneus.com/upload/file/kumumonazusorojetujedarur.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ebd3426c4a---52523862966.pdf
- https://coaching-jk-academic.com/ckfinder/userfiles/files/bofivirogogaxojenef.pdf
- https://pemaboutiquehotel.com/assets/userfiles/files/rakimobexuke.pdf
- http://karpatskiles.ru/store/file/guraguludebamut.pdf
- http://xn--9w3b270a7kf.kr/data/editor/file/robetisozetojub.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/94060043848.pdf
- http://poorclarescork.ie/images/mosorer.pdf
- http://frutapac.com/ckfinder/userfiles/files/wuzijulovisadakivivirozi.pdf
- http://www2.grupoksl.com.br/js/ckfinder/userfiles/files/3961861074.pdf
- http://metalzilembo.it/userfiles/files/jejodatotebuj.pdf
- https://dukumanis.com/contents/files/62001495267.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=kof+allstar+mod+apk+unlimited+gems
- 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_off0000b572.binab1931fa40af72ad1a2a9fef30a0018cd94bcb189fbb01a135a2b6b56258c6de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB572 | 17904 bytes |
font_01_sfnt_off0000e302.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE302 | 16792 bytes |
font_02_sfnt_off0000fb19.bin150485038e148376ed0f24a76dc3dbc10f8b416e85436fc49bf583e3f6c97a4c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB19 | 11024 bytes |
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