Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cde5133ff3c20c…

MALICIOUS

PDF

765.2 KB Created: 2022-03-29 02:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 5c55f550cc813b061be2040f63d1273c SHA-1: c76f668b83dd76e47b2f9136587bd73a554602ac SHA-256: a9cde5133ff3c20cf7781b2c82bc1ced7b389146a64ff9aef7fefcda488215be
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2558

Heuristics 5

  • 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.
  • 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://lazav.co.za/XSRYdR1H?utm_term=old+man+logan+comic+value PDF link annotation
    • https://mayxaydungthienlong.com/uploads/files/files/nivebetaxerafegawoza.pdfIn PDF document text
    • http://aytekinpolatel.com/image/files/bunigofuwetedinuwojuje.pdfIn PDF document text
    • https://krygina40.ru/UserFiles/File/6772834187.pdfIn PDF document text
    • https://schoolerp.stembridgelabs.com/userfiles/file/pezafapobulosepizogologav.pdfIn PDF document text
    • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/16213b53b8e1fa---64557735412.pdfIn PDF document text
    • http://auto-fiesta.ru/upload/files/tomazos.pdfIn PDF document text
    • http://skia22.ru/pic/file/fotogusilubuzoz.pdfIn PDF document text
    • http://partnercable.hu/files/vavivatapovi.pdfIn PDF document text
    • http://brava-ekb.ru/userfiles/file/42206551033.pdfIn PDF document text
    • http://sherry-japan.com/uploads/files/32730064838.pdfIn PDF document text
    • http://maszyny.pl/userfiles/file/62980185427.pdfIn PDF document text
    • https://www.iccct21.scrs.in/kcfinder/upload/files/29576139669.pdfIn PDF document text
    • http://el-master.ru/userfiles/file/45892083066.pdfIn PDF document text
    • http://divorceinhungary.hu/kcfinder/upload/files/59683488190.pdfIn PDF document text
    • http://gamenavigator.su/userfiles/files/wanukudosoxepowawepazofak.pdfIn PDF document text
    • http://zeci.nl/im/image/vofotavixuki.pdfIn PDF document text
    • http://rracc.com/file_media/file_image/file/12218303052.pdfIn PDF document text
    • http://www.fbs-g.com/kcfinder/upload/files/15801731100.pdfIn PDF document text
    • https://geekers.tw/upload/file_folder/file/63682062528.pdfIn PDF document text
    • http://khodahoanglang.com/admin/webroot/upload/image/files/1581662838.pdfIn PDF document text
    • https://coprose.com.mx/kcfinder/upload/files/wejorakoronatix.pdfIn PDF document text
    • https://portalspam.media-informatika-mura.com/assets/kcfinder/upload/files/nixogomidomekaxaf.pdfIn PDF document text
    • http://wx-bm.cn/upload/ckimg/files/202202271854059596.pdfIn PDF document text
    • http://heorungminhphat.com/luutru/files/39500971140.pdfIn PDF document text
    • http://etre-belle.su/images/file/dugepelevitelo.pdfIn PDF document text
    • https://audit-advisers.com/userfiles/file/ganumibosu.pdfIn PDF document text
    • https://zohopin.com/calisma2/files/uploads/nipugulopazagoxuz.pdfIn PDF document text
    • http://kondicionery-pushkino.ru/upload_picture/file/9756851622.pdfIn PDF document text
    • http://lezeckastenakosice.sk/upload/files/bajig.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206554e62e65---16651074474.pdfIn PDF document text
    • https://bkdesign.ee/userfiles/file/70746660702.pdfIn PDF document text
    • http://xn----8sbfhu6ab4bqv.xn--p1ai/userfiles/file/geruratul.pdfIn PDF document text
    • https://eric-parnes.com/ckfinder/userfiles/files/60678382658.pdfIn PDF document text
    • https://holcom-wd.holcom.vn/webroot/img/files/39686257649.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_off000b82b9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000b82b9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000b82b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB82B9 19684 bytes
SHA-256: 49e6d368d5229e5d4059ed5407685c179548c9705b1a2811c8e524d0535fa24a
font_01_sfnt_off000bb62b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB62B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000bcd4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCD4B 10536 bytes
SHA-256: 6a1b287e3a1fed044c2d7337ab97a9e02dd6ca7ac5e73caee20bf3f12bbad670