PDF malware analysis — malicious · 7823dfea838b7c27

MALICIOUS

PDF

83.4 KB Created: 2022-05-10 05:45:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16

MD5: 127a21a5ed88f4ddeb316556d4fc8fd7 SHA-1: 86baf7791482860a11bf57101b43e740ac92662d SHA-256: 7823dfea838b7c278262e2d56e084a8a9355c689a0d84523c4f9787d115ede17

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9981

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small 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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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://ragaz.co.za/YmrXLWy8?keyword=core%20java%20black%20book%20pdf%20%20pdf%20software%20for%20windows%2010%2064-bit PDF link annotation
- https://kientrucmoi.com.vn/admin/kcfinder/upload/files/jewugoxuwozavila.pdfIn PDF document text
- http://webursitet.org/kcfinder/upload/files/popitanigivikapag.pdfIn PDF document text
- http://ryougae.net/upload/informations/files/lenifesabojupuzewogawas.pdfIn PDF document text
- http://s8radziejowice-paszkow.pl/userfiles/file/8432890005.pdfIn PDF document text
- http://www.stts-tir.com/admin/kcfinder/upload/files/supudotodoramojere.pdfIn PDF document text
- http://yuanhebiotech.com/upload/files/kumowewawaguma.pdfIn PDF document text
- https://www.osazovanidps.eu/admin/kcfinder/upload/files/suvane.pdfIn PDF document text
- http://studioarchperissinotto.eu/userfiles/files/70932405497.pdfIn PDF document text
- http://gps-ambroisie.com/ressource/site-image/files/xipobozapusuzadoditefemi.pdfIn PDF document text
- http://gazomotor.com/allinone/file/81709012680.pdfIn PDF document text
- http://dighakanchaninternational.com/FCKeditor/file/gedozevufid.pdfIn PDF document text
- https://boyanbolyarski.com/userfiles/file/92664409617.pdfIn PDF document text
- https://www.gryf-wet.pl/ckfinder/userfiles/files/86313701673.pdfIn PDF document text
- http://asktasi.com/ckeditor/kcfinder/upload/files/vevirejanoxenomos.pdfIn PDF document text
- https://chretkinia.pl/userfiles/file/26286395108.pdfIn PDF document text
- https://dermatologie-francophone.com/userfiles/file/dagakes.pdfIn PDF document text
- http://ryukatsu.com/userData/board/file/tapinefite.pdfIn PDF document text
- https://kuzeyilac.com/resimler/files/39963793371.pdfIn PDF document text
- http://www.advokat.com/app/webroot/img/fck/file/11741415972.pdfIn PDF document text
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fbd47ed7f6a---mibagibo.pdfIn PDF document text
- http://flexibordj.com/app/webroot/js/kcfinder/upload/files/wutibagitefuvojumajinetas.pdfIn PDF document text
- https://tranhtreo.com/images/ckeditor/files/batozuruvavarugivonigo.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dd3e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD3E	17768 bytes
SHA-256: `9220df668b6225c31e8d8120dcc70c1b927c4ca92e069b82447938653e227f84`
`font_01_sfnt_off00010bd9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10BD9	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off000123f0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x123F0	11612 bytes
SHA-256: `43fe75c65bac88a5d836bcf0631c354a3a84c235bf200b57bcfbeaae8a1f3341`

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