Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c62bfea22352e97…

MALICIOUS

PDF

337.4 KB Created: 2022-03-28 11:54:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: 92e896aeef005b58460534724a5e1f1f SHA-1: f38b5abc7e22cb74f67757bf2086789e1c41e815 SHA-256: 6c62bfea22352e970284d639ab7132f19f5e385b0b192daee4749b2655a4229b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7583

Heuristics 6

  • 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.
  • 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://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/162163d6b45c0e---16727083346.pdf In PDF document text
    • https://wspaperbag.com/userfiles/file/mejerosetuzuxafabuzapu.pdfIn PDF document text
    • http://balone.net/_upload/file///zewiwiludisiviwemoto.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa788751a8f---vulusiberugulawasure.pdfIn PDF document text
    • https://discovery99.com/userfiles/file/murojevowijona.pdfIn PDF document text
    • http://ldksolar-officialliquidation.com/userfiles/files/31851496529.pdfIn PDF document text
    • http://chulatutoracademy.com/chulatutor/ckfinder/userfiles/files/18026330079.pdfIn PDF document text
    • http://www.sanbernardinoverona.it/_admin/kcfinder/upload/files/84768106087.pdfIn PDF document text
    • http://vietcem.vn/public/default/ckeditor/files/7615202654.pdfIn PDF document text
    • http://helix.chuing.net/mai/ckfile/files/21190424131.pdfIn PDF document text
    • https://www.quartzlock.com/userfiles/files/3405582486.pdfIn PDF document text
    • https://www.orthomaxindia.net/admin/kcfinder/upload/files/wijemomexazapujanesikeji.pdfIn PDF document text
    • https://gotoko.com/cmsv2/upload/files/59224387175.pdfIn PDF document text
    • https://pensiuneavalentina.traditionalart.ro/app/webroot/file/81222131806.pdfIn PDF document text
    • http://transsegna.com/userfiles/wonalugu.pdfIn PDF document text
    • http://pinboulevard.com/file_space/files/momogedova.pdfIn PDF document text
    • https://cgb-echafaudage.fr/upload/files/renuxupavefadijetugupul.pdfIn PDF document text
    • https://lederstuehle-shop.de/ckfinder/userfiles/files/4347964727.pdfIn PDF document text
    • http://www.mkfilm.it/ckeditor/kcfinder/upload/files/98596210806.pdfIn PDF document text
    • http://nuocmambason.com/upload/fckimagesfile/6c2210d5484ba5b4cb2480a73c5f1527.pdfIn PDF document text
    • https://www.sophrologue-nimes.fr/upload/news/files/21987334118.pdfIn PDF document text
    • https://saikekanglun.com/filespath/files/20220204175859.pdfIn PDF document text
    • http://aztkgbv.love-mrt.com/upload/files/6686055210.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16232f51740ab7---9619865806.pdfIn PDF document text
    • http://nfc.soo.jp/file/77785011610.pdfIn PDF document text
    • http://xindeshiye.com/uploadfile/file///2022030216464274.pdfIn PDF document text
    • http://wixoon.hu/upload/file/85479656807.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=washing+powder+vs+liquidPDF link annotation
    • http://irodori.kir.jp/files/file/tefisosenigotokakazepu.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_off0004d422.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004d422.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d422.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D422 10964 bytes
SHA-256: 4d61194ec2c03fd27ff19ad3166ee502527e52d8c1603e7d9323d9c1d7cdc01b
font_01_sfnt_off0004ecfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ECFE 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00050419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50419 19440 bytes
SHA-256: 311cdd737698009c3bda7b2c4db52bf8809023f201a8666eff86fd7a12448d48