PDF malware analysis — malicious · d3e9456f5afc49bc

MALICIOUS

PDF

72.1 KB Created: 2021-09-07 13:15:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21

MD5: efea7b3bc77241f38f700275eb2e78ad SHA-1: a2edf4e73f15a74e7351b49a740a3a9382fd0f31 SHA-256: d3e9456f5afc49bc2fcfd1cf7dd711ae6b7155d84d3531280109922fc2080592

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://soalmatematik.com/userfiles/file/86284791692.pdf In PDF document text
- http://www.moyekolodin.com/files/jenile.pdfIn PDF document text
- http://luxmeterthai.com/ckfinder/userfiles/files/savebi.pdfIn PDF document text
- https://goez1.com/10005001208290177/ckfinder/userfiles/files/zopupado.pdfIn PDF document text
- http://kapsalonindex.nl/images/uploads/xufakefurinetaxede.pdfIn PDF document text
- http://parcfamilyreunion.com/clients/b/b3/b3ae52aef0329bb57e848b27182677c8/File/xidorojitubizu.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/gobazokodo.pdfIn PDF document text
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160986f3a3d7fa---42723396381.pdfIn PDF document text
- http://aktifithalat.com/resimlerfiles/53403027063.pdfIn PDF document text
- https://cncostruzioni.com/userfiles/file/nuweviwonuxulod.pdfIn PDF document text
- http://antifftech.com/uploadfile/file///2021081807564476.pdfIn PDF document text
- http://whitepurdeespires.com/clients/b/ba/ba703c466af5784ee38134b9d09df413/File/xafuzufuvefopuvipusoginu.pdfIn PDF document text
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160740042c3ac6---29234257845.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b45fe005146---gojipajomiliveziwumowod.pdfIn PDF document text
- https://xo-sound.ru/userfiles/file/7673678039.pdfIn PDF document text
- http://csc-020.com/userfiles/file/20210618101515_oydjx1.pdfIn PDF document text
- http://acutecardio.ru/sadm_files/vuxigelazilararesase.pdfIn PDF document text
- https://accuratesearch.com/userfiles/file/betizomavozemiwufiwidaxe.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/c7b4cb5aaeaf0ac374bf3f8b882999a4/90155698731.pdfIn PDF document text
- https://fallsplat.se/file/34930246333.pdfIn PDF document text
- http://aligokdemir.com/resimler/files/92245932588.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=political+map+of+north+and+south+america+pdfPDF 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_off0000b732.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB732	10984 bytes
SHA-256: `ba2845eeb16c2904cf9d224cd71159c0af3c64bfbb6e0e05d06634cfc0ebbd3f`
`font_01_sfnt_off0000d085.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD085	16480 bytes
SHA-256: `53435759322696bf16c4a7e3ad04b3d4142a4895a6a594bd90f8804aca95565a`
`font_02_sfnt_off0000fad0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFAD0	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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