PDF malware analysis — malicious · 4e3d9aee523ea7df

MALICIOUS

PDF

70.7 KB Created: 2022-04-16 12:58:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: 4e08a7af5133ddea6b6eb19644c90897 SHA-1: 88ae1016aded3d5921cbe6f906067a7831553c20 SHA-256: 4e3d9aee523ea7dfb05658308e9af7b05988a9964a8ca3a8bdea91a0880baadc

194 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9993

Heuristics 7

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://wirut.co.za/YmrXLWy8?keyword=proselect%20programmable%20thermostat PDF link annotation
- https://detmers-kontejner.hr/files/sudugobilanepuxob.pdfIn PDF document text
- https://wizodorifezeniv.weebly.com/uploads/1/3/4/7/134715638/radokelamomogefe.pdfIn PDF document text
- https://shirbandifelt.com/userfiles/file/74443934581.pdfIn PDF document text
- http://nawoo.net/userData/board/file/dunobasojozolofuvamu.pdfIn PDF document text
- https://zokelafeg.weebly.com/uploads/1/3/4/8/134889419/lijexigow-rotet-kofuvetunus.pdfIn PDF document text
- http://sfipl.in/userfiles/file/zuvijuzuno.pdfIn PDF document text
- https://razabajase.weebly.com/uploads/1/3/4/3/134355763/regitifasuxevi.pdfIn PDF document text
- https://bexatumabe.weebly.com/uploads/1/3/4/8/134852132/3116987.pdfIn PDF document text
- https://balatonpremiumvillas.hu/webroot/upload/files/tovinodixabitorutapulugaz.pdfIn PDF document text
- https://dirifanijademad.weebly.com/uploads/1/3/4/8/134898971/b68629.pdfIn PDF document text
- https://marblobaths.com/app/webroot/img/files/nawulerapoxalosajutiji.pdfIn PDF document text
- https://caviar.md/kcfinder/upload/files/wexofa.pdfIn PDF document text
- http://flexibordj.com/app/webroot/js/kcfinder/upload/files/1563365957.pdfIn PDF document text
- http://vasset.bg/userfiles/file/wuvixavu.pdfIn PDF document text
- http://piemonteforyou.it/userfiles/file/savawepofedizonu.pdfIn PDF document text
- http://malir-naterac.info/UserFiles/File/6548416431.pdfIn PDF document text
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/gg37kusnnoiujjv98a4jepok46/jixaw.pdfIn PDF document text
- https://kigokowolabewal.weebly.com/uploads/1/3/4/1/134132594/9751421.pdfIn PDF document text
- https://namuxewanazojo.weebly.com/uploads/1/3/4/2/134266474/e0324.pdfIn PDF document text
- https://hinodanang.com/uploads/image/files/tepefigirug.pdfIn PDF document text
- https://jatowuwovusi.weebly.com/uploads/1/3/5/9/135981640/2229089.pdfIn PDF document text
- https://pasifoberili.weebly.com/uploads/1/3/4/8/134881239/cd16704.pdfIn PDF document text
- https://foodsafebox.com/ckfinder/userfiles/files/xifaniridix.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_off0000aeaa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAEAA	10768 bytes
SHA-256: `2b5ba01f400b65c8e05910f8851b952aa9765d0bcdf316bd8b6e59f0e71d57dd`
`font_01_sfnt_off0000c74c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC74C	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000df5e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF5E	16668 bytes
SHA-256: `12ff88129c4326f814972f2b82955e77315cfa1153cc9b076d93ccc0de0cfd18`

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