Malicious PDF — malware analysis report

Static analysis result for SHA-256 8477d2c709495369…

MALICIOUS

PDF

234.1 KB Created: 2022-03-12 06:01:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: 7893ffcca1fc3fefead3b885f021f597 SHA-1: 1590b1893c77ba63cf37b2a1604b5132e833d762 SHA-256: 8477d2c7094953695c9b8ab8bb666025355494f49322570565c9a6165217798b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7666

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
  • 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.
  • 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://colod.co.za/XSRYdR1H?utm_term=encyclopedia+britannica+free++for+windows+10 PDF link annotation
    • http://cahayamimpi1.com/contents/files/zukapabumimofilewegatat.pdfIn PDF document text
    • http://platcometals.com/images/file/bigabowamufuv.pdfIn PDF document text
    • http://123flower.doweb.kr/upload/files/47729135387.pdfIn PDF document text
    • http://chestheart.org/assets/ckeditor/kcfinder/upload/files/18712995549.pdfIn PDF document text
    • http://cautrucpalang.vn/webroot/img/files/21817935137.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/3b938a38d893dec3cae131b6eb988519/sijuwaruruteduwulinaterak.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622ac581ac89e---xadafewiti.pdfIn PDF document text
    • https://eletvital.hu/uploads/files/1780549705.pdfIn PDF document text
    • http://talleresjpg.es/img/file/gobifimexejinat.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/162161a09c1c49---bepofujirabiz.pdfIn PDF document text
    • http://studiofantino.it/userfiles/files/wobivifuboto.pdfIn PDF document text
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16215081ae6b0a---bevetesozivevadagerabot.pdfIn PDF document text
    • http://praconsulgroup.ru/pict/file/kotirijumon.pdfIn PDF document text
    • http://greenlasthousing.com/admin/kcfinder/upload/files/73700137487.pdfIn PDF document text
    • http://davidhammerstein.org/userfiles/file/34170282514.pdfIn PDF document text
    • https://tolgyesvolgy.hu/userfiles/file/11964065745.pdfIn PDF document text
    • http://thietbinuoitom.vn/uploads/userfiles/file/97313472380.pdfIn PDF document text
    • https://generace89.cz/kcfinder/upload/files/45033587433.pdfIn PDF document text
    • https://bishopsalamatkhokhar.org/userfiles/file/62303001745.pdfIn PDF document text
    • http://yule-sign.com/upload/editor/file/20220212194718.pdfIn PDF document text
    • https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1622814be42b38---viboxusulugesasosazew.pdfIn PDF document text
    • http://cmrivestimenti.com/userfiles/files/ragajiretaxidatamidojafu.pdfIn PDF document text
    • https://archguruorg.welkinovation.com/admin/UserFiles/images/files/33220513309.pdfIn PDF document text
    • http://bancasemecanino.com/userfiles/files/fefubarupurekugutajefilar.pdfIn PDF document text
    • https://motoquadro.de/userfiles/file/66204062903.pdfIn PDF document text
    • http://drdj.friend-match.com/upload/files/mopif.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 extracted file (font_00_sfnt_off00031fd5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00031fd5.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031fd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FD5 11108 bytes
SHA-256: ef989b57a66ccf042cd00f07bd29b4f9581baedd394290b709d2edaffbe6cfb1
font_01_sfnt_off000339bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x339BC 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_02_sfnt_off00034fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34FA0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off000366bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x366BB 18288 bytes
SHA-256: 6e809892d907dad5b3341674f1ce64c0f1b47420cdd948b7d4abda23b14bdebd