PDF malware analysis — malicious · af28240705897e3d

MALICIOUS

PDF

85.6 KB Created: 2021-08-12 12:04:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22

MD5: 3b52d286ea65c8c4931ff6f658b0e001 SHA-1: b941563dbb382d78330f6a5534d6eab391d447bd SHA-256: af28240705897e3d0ba57168cf48f23eeb35316675e7a5c9641ea9008eebdf19

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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 http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160dda3584b742---sapenumulobibapokagafol.pdf In PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/75cce6f1c59533a28c8ba4497c5cced9/tirigutavalu.pdfIn PDF document text
- http://benardoutlite.com/admin/fckeditor/fckdata/file/80781760089.pdfIn PDF document text
- http://rothemtour.com/FileData/ckfinder/files/20210731_BFE250F17353FBE9.pdfIn PDF document text
- https://rijst.nu/userfiles/file/50570443145.pdfIn PDF document text
- https://sport-jicin.cz/dokumenty/nukibewidipinewalub.pdfIn PDF document text
- https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/46e50118d4aff737f8ebad6a7c3d0590/vowupudowisex.pdfIn PDF document text
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c203e0544c2---voxabev.pdfIn PDF document text
- https://burgas-remonti.com/userfiles/file/vivezofijajitujewo.pdfIn PDF document text
- https://creteservices.com/FCKeditor/userimages/file/logaremukitigoxafizawef.pdfIn PDF document text
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160d3003ae9478---bugejolomolaxijone.pdfIn PDF document text
- https://mycocoa.org/images/upload/files/xanuxubijalaxijadam.pdfIn PDF document text
- http://bluecreator.biz/ckfinder/userfiles/files/mibokupuxivezoliwepar.pdfIn PDF document text
- http://bean2beenefamilytree.com/clients/60578/File/farum.pdfIn PDF document text
- http://domusanna.it/userfiles/files/takejadovepovakurekajo.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160823e1860819---62699765205.pdfIn PDF document text
- http://trineckevzdelavani.cz/webpagebuilder/ckfinder/userfiles/files/31695501605.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e54a8315d7---bogadotekimetex.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=naming+ionic+compounds+pdf+answer+keyPDF 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_off0000e9a8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE9A8	17220 bytes
SHA-256: `df68995545f56a20143e40a6db1fbfb1f98ca15a94eed5d5a27747c60c3fc0ed`
`font_01_sfnt_off000116ef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x116EF	11188 bytes
SHA-256: `ae07680c3d9dd99bda36a06365f30fea3b58c537ab143851dd6d1841d9804f79`
`font_02_sfnt_off000130fa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x130FA	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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