PDF malware analysis — malicious · 72b9751c2f60d9fd

MALICIOUS

PDF

77.5 KB Created: 2022-04-06 08:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28

MD5: 873973e1cfd02faf20fcb9e33f9a9c84 SHA-1: 94231b488f810ee0036f4e5f3d31eb2d463a038d SHA-256: 72b9751c2f60d9fd8d9bd780416bdef5e1375b8bd09da99517298af97b387abe

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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://fecuq.co.za/YmrXLWy8?keyword=holt%20mcdougal%20geometry%20developing%20formulas%20for%20triangles%20and%20quadrilaterals PDF link annotation
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1621fad90e5928---18934635759.pdfIn PDF document text
- https://noursportevents.com/wheelmarine/userfiles/file/95561636243.pdfIn PDF document text
- https://renejineb.weebly.com/uploads/1/3/5/3/135322717/pidaratijaputuviz.pdfIn PDF document text
- https://soswzgierz.pl/web/uploads/files/dulufigupedojulileti.pdfIn PDF document text
- https://3territoires.kopro.fr/userfiles/file/magovimer.pdfIn PDF document text
- https://mutodebubopuvom.weebly.com/uploads/1/3/4/3/134373551/5737712.pdfIn PDF document text
- https://nodifolosorak.weebly.com/uploads/1/3/4/7/134758422/xafisuvumedinujaxexo.pdfIn PDF document text
- https://fogipomovilop.weebly.com/uploads/1/3/4/0/134018275/redes.pdfIn PDF document text
- http://studioiulianella.it/userfiles/files/vezasek.pdfIn PDF document text
- https://jovigazever.weebly.com/uploads/1/3/1/6/131637362/eb4e1e6.pdfIn PDF document text
- http://smartbankingchoices.org/app/webroot/js/kcfinder/upload/files/22624351684.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1621fa7b0e933c---vukovavojezogitu.pdfIn PDF document text
- http://portalpr-b2b.es/img/user//file/_0589262001645476763.pdfIn PDF document text
- https://nebenumepidenok.weebly.com/uploads/1/3/5/3/135307723/sepirunevat_samuzi.pdfIn PDF document text
- https://polytechnik21.ru/images/news/89622843075.pdfIn PDF document text
- http://choinka4x4.org/cms/files/file/59083033846.pdfIn PDF document text
- https://handientu.vn/userfiles/file/53213240636.pdfIn PDF document text
- https://mukiwumumowu.weebly.com/uploads/1/4/1/2/141298936/1386791.pdfIn PDF document text
- https://unecol.com/uploads/kcfinder/upload/files/91123353020.pdfIn PDF document text
- http://reputesystems.com/app/webroot/uploads/files/texoxuwuke.pdfIn PDF document text
- http://agilesolutions.in/uploads/63490997213.pdfIn PDF document text
- https://rutuwupu.weebly.com/uploads/1/3/1/3/131378820/zoriredifujama_zasazugunu_lukodeke.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_off0000c987.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC987	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000e199.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE199	16792 bytes
SHA-256: `8000126c24a14c0787fdd7a103b5727e008d100a6cd7576369e621613dc22f81`
`font_02_sfnt_off00010d5b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10D5B	11380 bytes
SHA-256: `400072945586f45f850ac8a00ca7694522d10f76de2a506f1c4b749d7f604e90`

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