MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.001 PowerShell
This PDF document was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links to external sites, many of which appear to be compromised or disposable hosting. A critical heuristic indicates the document attempts to lure the user into executing commands by instructing them to copy and paste content into a shell, likely to download and execute a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
Heuristics 7
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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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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://ketchas.ru/uplcv?utm_term=html+email+mac
- http://www.themixchange.com/userfiles/files/vinusu.pdf
- https://bushregenerators.net/userfiles/files/89714418048.pdf
- http://le-nora.com/userfiles/file/gijowumegubufesonine.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1614285135e34b---zivisepugudurikon.pdf
- http://condosworld.com/abisol1/userfiles/files/83582677214.pdf
- http://choinka4x4.org/cms/files/file/bepuv.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132ca9d3f218---66645398029.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/35cc178c40ec5b2eddc8b580fcfd3537/47674943049.pdf
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139e817d4364---lekegifevug.pdf
- http://imailbox.nl/images/uploadedimages/file/fupurabiziwereloregusopiv.pdf
- http://ndc-group.ru/uploads/files/gumaxisuvalu.pdf
- http://vikohasanfiber.com/upload/files/waxenisunekax.pdf
- https://zhongzing.com/uploads/files/202109030310241557.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161379cc083436---ginarobugigapuri.pdf
- https://www.nvsrolko.org/ckfinder/userfiles/files/69537347597.pdf
- http://meghdoothsuzuki.com/uploads/pogabufivapibikasujel.pdf
- http://traktorpulling.de/ablage/userfiles/files/ruliduvutubivon.pdf
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16133ca60b38bf---57722759688.pdf
- http://www.jobsincrete.gr/images/_user_na/file/kafikimasexiwoluk.pdf
- http://t-eamplus.de/web/editor/files/dusemuduxukewewozeleji.pdf
- http://sz-nuoyi.com/Upload/file/2021090205494152936.pdf
- https://yellowmangocafe.com/userfiles/file/75625009890.pdf
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/161366d14495b8---gomoxes.pdf
- http://tzsunup.com/upload/tuwotijawuvedowego.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/16141f4408239f---buzibenixajezed.pdf
- http://bagodilovaspark.hu/userfiles/file/filewatumotosaxarujilu.pdf
- http://managhantasala.net/mailuserfiles/file/divurikazuzasidezunigibeb.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_off0000dc4a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC4A | 16792 bytes |
font_01_sfnt_off0000f460.bin8e0a1f4d893d4f26bafb12ed34f2015a9d966f2f83a9a789ad589a128b797422 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF460 | 9892 bytes |
font_02_sfnt_off00010a1d.bin0980dc01f39b9fa76d601eb090850bc9864b5de972495ae941e3c7ddfba81bd1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A1D | 18068 bytes |
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