PDF malware analysis — malicious · 478f37f3182221ff

MALICIOUS

PDF

66.2 KB Created: 2021-12-14 08:03:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20

MD5: 3a61e3a902f77370e192bba5f5c0f3f4 SHA-1: 720d793207009a90f337cbee45dce98ef8173bcc SHA-256: 478f37f3182221ffc43046b28bd09b393da90ec3924e2f2eeccaf04c23ad74f6

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9982

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
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF 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.
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.
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 http://jshanwoo.com/ckfinder/userfiles/files/93063254372.pdf In PDF document text
- http://enjoyisagenix.com/ckfinder/userfiles/files/nipupitujuvubanuf.pdfIn PDF document text
- http://ceramicaartisticamarsalese.it/userfiles/files/51175492377.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613c80b253529---20851519600.pdfIn PDF document text
- https://www.ijmsir.com/ckfinder/userfiles/files/fuvakafenurokotot.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1619253210c926---54640818780.pdfIn PDF document text
- https://hgb.se/filer/file/dogobilekulakiz.pdfIn PDF document text
- http://sjanzee.nl/file/zobukenuxur.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1617063a1a45b6---simabobekak.pdfIn PDF document text
- http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/famowimagem.pdfIn PDF document text
- http://thehealingjournal.com/userfiles/file/24850822102.pdfIn PDF document text
- http://lnaixi.com/userfiles/file/20211203140843_1004334911.pdfIn PDF document text
- http://myesen.life/userfiles/file/bisutobugojatipafofag.pdfIn PDF document text
- https://reitinguok.lt/userfiles/file/fisalomi.pdfIn PDF document text
- http://estatepie.com/files/userfiles/file/sasifapidiruzebumupovi.pdfIn PDF document text
- http://jaluzipro.ru/public/userfiles/file/32594015420.pdfIn PDF document text
- https://huaienclinic.com/uploadpic/files/pevusufadodofolumokoj.pdfIn PDF document text
- https://karlholmbygg.se/UserFiles/files/86563466491.pdfIn PDF document text
- https://paperland.bg/uploads/file/30794579240.pdfIn PDF document text
- https://tolgyesvolgy.hu/userfiles/file/roxokapajipabewiwur.pdfIn PDF document text
- http://trufeel.com/ckeditor/ckfinder/uploadfile/files/91152739494.pdfIn PDF document text
- https://faresaldabbous.com/uploads/file/disesegugezi.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/HKUGBsJGI0E/uplcv?utm_term=don+juan+mexican+restaurant+near+mePDF link annotation
- 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_off0000a29a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA29A	10680 bytes
SHA-256: `8384fdc46956bad473fc4e912fa722319cc785bdd944c4a168fad4a77a4a9336`
`font_01_sfnt_off0000bb13.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBB13	16128 bytes
SHA-256: `cadbdbb37d6fb85ef3725475289944f55789e4f24dcf9e98ddecb8f7769a5c8a`
`font_02_sfnt_off0000e48b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE48B	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`

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