Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e8d7af7238d3ca…

MALICIOUS

PDF

504.5 KB Created: 2022-01-28 04:29:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: 92e4b32981d9271e8ff864242532671c SHA-1: 6b434907f8a456e1f1243dbc921240b19cb0571a SHA-256: b6e8d7af7238d3cabdc89d0979a1dac0481d2bf18b67531a358a42206d9f69a1
144 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.2230

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://do-construction.ch/admin/kcfinder/upload/files/72822788791.pdf In PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/lm1b4990p71ukmaf4neotkc9k6/narelip.pdfIn PDF document text
    • https://islamquestions.justaskislam.com/files/file/12227397873.pdfIn PDF document text
    • http://promerilaclama.com.tr/panel/kcfinder/upload/files/77887678096.pdfIn PDF document text
    • https://mk-promotions.com/ckfinder/userfiles/files/roperasofos.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/161be0346df517---lorujukonanepivufete.pdfIn PDF document text
    • http://montesantangelo.it/files/files/nimolikerezosupemozifexi.pdfIn PDF document text
    • http://cwsf2013.sfiab.com/data/userfiles/file/31761368832.pdfIn PDF document text
    • http://czechdidgeridoo.com/admin/upload/file/67912203598.pdfIn PDF document text
    • https://mbamantra.com/ci/userfiles/files/85549870738.pdfIn PDF document text
    • http://doxetrilinh.com/media/ftp/file/fufekanebukelirixeweve.pdfIn PDF document text
    • http://crocepadrekolbe.it/userfiles/files/497314171.pdfIn PDF document text
    • http://numberprotect.com/admin/kcfinder/upload/files/24961204336.pdfIn PDF document text
    • http://a-xian-coat.com/uploads/files/202112021616075610.pdfIn PDF document text
    • http://www.saaegfpolis.org.br/ckfinder/userfiles/files/72594570301.pdfIn PDF document text
    • https://gedayapi.com/userfiles/file/95025079680.pdfIn PDF document text
    • http://superfishinglewood.com/uploads/files/11183589448.pdfIn PDF document text
    • http://utuin.net/files/fckeditor/file/42987699755.pdfIn PDF document text
    • http://cbcom.fr/ressource/site-image/files/97370890500.pdfIn PDF document text
    • https://kientrucmoi.com.vn/admin/kcfinder/upload/files/312514363.pdfIn PDF document text
    • http://fasson.vip/images/editor/files/80054973580.pdfIn PDF document text
    • http://steinbach.casawell.tw/userfiles/file/mixojuvumeponozubagimas.pdfIn PDF document text
    • https://quanghuydulich.vn/img_duhoc/files/44934567478.pdfIn PDF document text
    • http://bon-mar.com/fck_user_files/file/mizivuzirifeted.pdfIn PDF document text
    • http://skkouty.cz/ckfinder/userfiles/files/sigeluzuke.pdfIn PDF document text
    • http://hhsmelt.com/upload/files/wozajukowalofodomafu.pdfIn PDF document text
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/cec1vr62cff56boklo2mq05g70/4304550958.pdfIn PDF document text
    • http://webhoctot.com/app/webroot/uploads/files/90716114409.pdfIn PDF document text
    • http://lumieye.com/userData/ebizro_board/file/59416158715.pdfIn PDF document text
    • https://vinaskitchen.com/nbloom/fckuploads/file/49825891982.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=chak+de+india+free++songs.+pkPDF link annotation
    • http://reklamaopole.pl/userfiles/file/tawimavonanuw.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_01_sfnt_off00074d04.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_01_sfnt_off00074d04.bin)

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000709e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709E9 22868 bytes
SHA-256: 3a9d0c62063eb5fb6661423a264c50cfcb26de5af49c6af47aef292d0618d4a0
font_01_sfnt_off00074d04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74D04 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000763aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x763AA 10820 bytes
SHA-256: e5787f199fed636e8cf94132ad4ba6c1c00e7f15cdaddcef05afa1c579cbb154
font_03_sfnt_off00077c5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C5E 23420 bytes
SHA-256: cb88e0dcb8ee8928c6738f521741ea3a0994b7a64a3bb15d08b35cf3ac400adb
font_04_sfnt_off0007b7eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7EB 16932 bytes
SHA-256: 532c20818c70536f98eb68d6432366fb6caa541b61c1173a27c5585236beaa87