PDF malware analysis — malicious · 4e39f0d4f0120fc3

MALICIOUS

PDF

78.6 KB Created: 2022-04-07 22:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: f3ff7b59a66635a5ffe68cef0545b414 SHA-1: 02ece2addacf66c81f475be2592a7cb4753f4268 SHA-256: 4e39f0d4f0120fc3dad7afe80fc2ecc33a1e62ff8c5292c05f6823dfc1c3e38b

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://lovig.co.za/YmrXLWy8?keyword=how%20to%20celebrate%20birthday%20during%20covid PDF link annotation
- https://unityofmyanmar.org/images/files/51955348389.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/aad63ee5cd0a2f965be6c3868bf17624/fatoberejupu.pdfIn PDF document text
- https://www.mvfht.ca/kcfinder/upload/files/81049724319.pdfIn PDF document text
- http://vektorma.ru/uploads/assets/file/10429585842.pdfIn PDF document text
- http://slmj8.com/data/userfiles/files/nawamelox.pdfIn PDF document text
- http://hockeyplayer.com/userfiles/file/57231628133.pdfIn PDF document text
- http://top-caster.com/userfiles/file/tifuxag.pdfIn PDF document text
- http://feriaalainversa.com/uploaded/files/funebefemoselofa.pdfIn PDF document text
- https://chandoantruocsinh.vn/resources/uploads/files/17410173638.pdfIn PDF document text
- http://compow.net/ckfinder/userfiles/files/xenafosise.pdfIn PDF document text
- https://cmflower-kkc.com/ckfinder/userfiles/files/29222443330.pdfIn PDF document text
- https://cmsmda.neotebet.de/uploads/all/5821012315.pdfIn PDF document text
- https://losivuli.weebly.com/uploads/1/4/1/2/141257427/4146179.pdfIn PDF document text
- http://bangladeshceramicsociety.com/uploads/editor/files/70915845206.pdfIn PDF document text
- https://bukojawuwo.weebly.com/uploads/1/3/4/5/134508808/lagebe.pdfIn PDF document text
- https://istanajp.net/contents/files/livamax.pdfIn PDF document text
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16209ecd8a38d3---29682729743.pdfIn PDF document text
- https://parlagame.net/calisma2/files/uploads/fadonezotifijaratowes.pdfIn PDF document text
- https://oddluzanie.net/userfiles/file/nilajowokatinaxebetuvak.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162136e1d17cb6---65287030132.pdfIn PDF document text
- http://mebelihome.ru/upload_picture/nevixawalulivawezafilo.pdfIn PDF document text
- http://elmarahtravel.com/public/kcfinder/upload/files/32834245601.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_off0000cf62.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCF62	10980 bytes
SHA-256: `a7ab2a7e450f4a24df816d0d98fa1c40b429f569ab933c5f3e6891ed4a491c5a`
`font_01_sfnt_off0000e898.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE898	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off000100aa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x100AA	16720 bytes
SHA-256: `7c3db4b3bcbc73f078d182a1ad59035250f1b2ae0e1d8dbeba89488af9ef82f4`

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