PDF malware analysis — malicious · d3efaf408a18b840

MALICIOUS

PDF

79.1 KB Created: 2021-11-17 15:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21

MD5: 4d287baef1547a02c5e8ecca78b1bd84 SHA-1: 8842b9735dd34f02a27d1259657aa065c3723146 SHA-256: d3efaf408a18b840ac4f4cf058196f87ab71524dc3d210a89ec33b6d08641b53

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9950

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 https://huntic.ru/uplcv?utm_term=resident+evil+damnation+123movies PDF link annotation
- https://shastriratanchatterjee.com/ckfinder/userfiles/files/votogefuvekoguvatako.pdfIn PDF document text
- http://thanhnhomdinhhinh.net/uploads/files/59061280378.pdfIn PDF document text
- http://sinojjacob.com/userfiles/file/19308053545.pdfIn PDF document text
- http://bosch-elektronarzedzia.pl/catalog/file/tufizeduwenipopoka.pdfIn PDF document text
- http://pscemetery.com/userfiles/file/betexo.pdfIn PDF document text
- http://firegallery.ru/img/upload/sigajipipoliga.pdfIn PDF document text
- http://rvhifi.cz/files/file/kakejopidowofufaxebaxi.pdfIn PDF document text
- http://hzqljsj.com/images/upload/File/12906246052.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161760159b7329---bipapewanibikezuziv.pdfIn PDF document text
- https://clinicamanila.com/ckfinder/userfiles/files/tajuforo.pdfIn PDF document text
- http://clairerolo.com/userfiles/file/58767092889.pdfIn PDF document text
- https://nangluongvada.com/uploads/files/94456137710.pdfIn PDF document text
- http://omnoiptv.com/outscapes/admin/ckeditor/uploads/ck/files/13642590387.pdfIn PDF document text
- http://gazosilikatnn.ru/uploads/files/61486816883.pdfIn PDF document text
- http://www.heksan.com.pl/file/83544725430.pdfIn PDF document text
- http://maremania.net/img_pagine/file/96797724536.pdfIn PDF document text
- https://resulgame.com/calisma2/files/uploads/27399044026.pdfIn PDF document text
- http://chapelguild.com/images/usr/58658952746.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1617679775817f---nebivunifevinadigekapode.pdfIn PDF document text
- http://tevukasveza.lt/ckfinder/userfiles/files/38087327182.pdfIn PDF document text
- https://canionglobal.com/FCKeditor/file/15350073712.pdfIn PDF document text
- http://novo-foto.ru/ckfinder/userfiles/files/17652405090.pdfIn PDF document text
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16156f8607e0e8---93809040995.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c2f9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC2F9	2612 bytes
SHA-256: `814e115e33a0540346d4a9da600f27dcdae1ed6d8730e15f90933d2d141beecd`
`font_01_sfnt_off0000cdfb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCDFB	18332 bytes
SHA-256: `221baac10c4b4aa19cf41c2bf08391055f12958326aecbe92684dce09edfa70e`
`font_02_sfnt_off0000fc9b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC9B	16540 bytes
SHA-256: `45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef`
`font_03_sfnt_off000113c1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x113C1	10764 bytes
SHA-256: `1ad6b4b72fab4351b6e8b6f05f331dcc64ee571c3cc8762620fcb05aaf3ce72f`

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