PDF malware analysis — malicious · 5d83bb83ff64d802

MALICIOUS

PDF

300.9 KB Created: 2022-03-14 23:55:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18

MD5: c644da8754e553e054635a7fbd43be49 SHA-1: 24fe367cbc07604cd970751865d05c84f9a79c43 SHA-256: 5d83bb83ff64d8028d7ed5004c6d950bde14f82407c241926650931bd699babb

174 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.5871

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://wirut.co.za/XSRYdR1H?utm_term=zinus+platform+bed+replacement+parts PDF link annotation
- https://hkhhvac.com/nbloom/fckuploads/file/kowexifab.pdfIn PDF document text
- http://chinamakina.com/userfiles/file/lovekejomigijalazo.pdfIn PDF document text
- http://www.mueblesgamez.com/ckfinder/userfiles/files/biliziboxozonifob.pdfIn PDF document text
- http://muratdizayn.com/panel/kcfinder/upload/files/zokapobupepoxanumura.pdfIn PDF document text
- http://gsprojekt.eu/userfiles/files/33588888957.pdfIn PDF document text
- http://www.atad.ae/emanager/assets/ckeditor/plugins/kcfinder/upload/files/rosejaso.pdfIn PDF document text
- http://tavio.su/files/file/5167252141.pdfIn PDF document text
- https://webmanagement.exing.ro/images/file/rorerijunas.pdfIn PDF document text
- http://www.debreceni-fogaszat.hu/js/ckeditor/kcfinder/upload/files/bilokofolarasutetul.pdfIn PDF document text
- http://www.amoroso-ongakuin.com/upload/files/97180808995.pdfIn PDF document text
- http://www.comhairleuladh.com/uploads/files/bepevivupagofagudo.pdfIn PDF document text
- http://xzavod.com/kcfinder/upload/files/33297709010.pdfIn PDF document text
- http://www.kermaz.fr/js/kcfinder/upload/files/29676712934.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1622adb1844e3e---gidufaxafunatibixal.pdfIn PDF document text
- http://kientrucmoi.com.vn/admin/kcfinder/upload/files/91910999498.pdfIn PDF document text
- https://goldgreiner.de/userfiles/file/supepoj.pdfIn PDF document text
- https://imagebuzz.net/ckfinder/userfiles/files/31742560517.pdfIn PDF document text
- https://ginniglobal.com/uploads/file/pekonuguf.pdfIn PDF document text
- http://mebelhotel.ru/images/news/file/mukowixurejelajo.pdfIn PDF document text
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/16229ed154b6c3---lumavoviwom.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16227df902ad5e---9869253286.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/162179250ae4f0---87057359682.pdfIn PDF document text
- https://himalayanwanderer.com/himalayan/userfiles/files/tobomusagi.pdfIn PDF document text
- https://kovtec.pl/eurostyl/photos/file/42607009021.pdfIn PDF document text
- https://loffoxfitness.mvwebsolution.com/userfiles/files/84635647878.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/dd133f58ac43ce3068c8d2bbc10433f5/35002928186.pdfIn PDF document text
- https://biocenfis.es/uploads/assets/file/kodofegagexotafodizur.pdfIn PDF document text
- http://domeinbeverdonk.be/assets/files/file/90007402856.pdfIn PDF document text
- http://keramann.ru/uploads/files/davejefufunolodatedup.pdfIn PDF document text
- http://iwebcambodia.com/admin/kcfinder/upload/files/zosisifoxukopiguku.pdfIn PDF document text
- https://affordans.com/ckfinder/userfiles/files/gixogusoximazudusulim.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1622e05743073f---sigevilujaworejadano.pdfIn PDF document text
- https://gbrcbodhgaya.com/userfiles/file/losolelurejamedepa.pdfIn PDF document text
- http://y-mirai.biz/js/kcfinder/upload/files/giginafifura.pdfIn PDF document text
- http://goldmustang.ru/files/files/50984071446.pdfIn PDF document text
- http://apsara.ru/userfiles/file/mopiborojukidos.pdfIn PDF document text
- http://shinyoungvalve.com/userData/board/file/vabevegenimiliki.pdfIn PDF document text
- https://www.gaiascience.com.my/assets/adminpanel/plugins/ckeditor/plugins/kcfinder/upload/files/fujun.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/8247687a55e14d74ecf07941f9609f57/fifupafupaxomuvipeto.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_off000425a9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x425A9	16220 bytes
SHA-256: `207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6`
`font_01_sfnt_off00043b8e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x43B8E	10984 bytes
SHA-256: `df255b3d2e606e56edbea2e3e45eb653006a27f30be78783f8a68e521cfc41b8`
`font_02_sfnt_off000454d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x454D1	20528 bytes
SHA-256: `dbb49b54804644458c9de09f349238736843726cf34a2c757db396898e6f41dd`
`font_03_sfnt_off00048a20.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x48A20	16560 bytes
SHA-256: `924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9`

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