Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6042c3fa448012…

MALICIOUS

PDF

403.8 KB Created: 2022-02-04 19:29:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 78297eedc3708c8fbe11a4b6828d43fc SHA-1: 7884eb0800c43be93a7ab54b5a003dd455695538 SHA-256: 8f6042c3fa448012191919409ce144202aa8b32740ba0de1e00a4af5db08bc93
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6486

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://matfplayer.com/calisma2/files/uploads/63228472150.pdf In PDF document text
    • http://german-ex.com/images/blog/file/zapujekitunixeburoga.pdfIn PDF document text
    • https://www.sudoku-cool.com/ckfinder/userfiles/files/99525766497.pdfIn PDF document text
    • http://travelspace.pl/userfiles/file/59124418627.pdfIn PDF document text
    • http://lakshimi-kaatsu.com/user_data/packages/default/imgfiles/rijip.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161caade23a275---tofavusulerudefa.pdfIn PDF document text
    • https://egf.tw/test2/images/file/wajufuliresub.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ad3eb6bcb5e---83681595063.pdfIn PDF document text
    • http://cheers-gifts.com/userfiles/69265144281.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16197e44d9ed84---43682758001.pdfIn PDF document text
    • http://ukicda.com/admin/fckeditor_upfiles/file/2021070616093680554.pdfIn PDF document text
    • http://e-sportis.com/images/upload/xelajetimovazodube.pdfIn PDF document text
    • http://xn--80aap0abfiql8h.xn--p1ai/admin/ckfinder/userfiles/files/19010802938.pdfIn PDF document text
    • https://ipic.vn/userfiles/file/tomamidelewevekedogamax.pdfIn PDF document text
    • http://kanoonkaraj.ir/dbmanager/filebank/htmlgallery/file///79455401524.pdfIn PDF document text
    • http://108homed.com/userfiles/files/lutovemaguxetefa.pdfIn PDF document text
    • http://preciz.com/uploads/wysiwyg/files/98103203430.pdfIn PDF document text
    • https://sooclose.mssc.pl/upload/File/luzaporet.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/xijogomagepivibik.pdfIn PDF document text
    • http://holzbau-napetschnig.at/rumufudunafarizazeni.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/3999275993.pdfIn PDF document text
    • http://idealhca.com/admin/images/file/pigefematarojizuvu.pdfIn PDF document text
    • https://lompatjauh.com/contents/files/mefazerowalowaje.pdfIn PDF document text
    • http://vp-dmsh.ru/admin/ckfinder/userfiles/files/jobufuxovexewenusutowuduj.pdfIn PDF document text
    • http://drzwiukryte.pl/userfiles/file/mulajoj.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=harga+agya+trd+manual+2019PDF 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 extracted file (font_00_sfnt_off0005d8e5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005d8e5.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005d8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D8E5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005effb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFFB 1660 bytes
SHA-256: bfe43d5959b2317135891740ee9f6bbd83044a2dfc391827d4c50438b6b55e15
font_02_sfnt_off0005f7e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7E4 19524 bytes
SHA-256: 0a5fa99c195b159e7576c3b069d25ae4ac671abc9eb3bf3d0124ff239a58f32b
font_03_sfnt_off00062820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62820 10744 bytes
SHA-256: 365d419e834b4199a160448ac2cfde31e135cb216eb7aa1aa92dc7ad6ba2c39d