Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bdc8c83d5b8627…

MALICIOUS

PDF

331.3 KB Created: 2022-04-07 11:59:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 3771991fef2359df1b7724c4d2ccb1ac SHA-1: 29b3aad20a812596b69702bf1d33383d207e4159 SHA-256: 88bdc8c83d5b8627b3c2827b3b4ed3fe7bbdccd293d5bb09bac3373986294941
236 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6543

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • QR business lure with obfuscated text critical PDF_QR_BUSINESS_LURE_OBFUSCATED_TEXT
    PDF contains a QR-like image and business-process scan instructions that only match after removing invisible Unicode control characters. This indicates deliberate text obfuscation in a QR phishing lure rather than a normal QR code.
  • QR-code business verification phishing lure high PDF_QR_PHISHING_LURE
    PDF contains a QR-like image and visible text instructing the recipient to scan or use a QR code for verification, HR, payroll, policy, email, signature, or similar business-process activity. This is a high-signal quishing pattern even when the PDF has no active JavaScript or URI action.
  • 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 http://tid.vn/upload/files/wobelibuvewefer.pdf In PDF document text
    • https://sagelexuda.weebly.com/uploads/1/3/4/8/134882043/56a135b69f.pdfIn PDF document text
    • https://tiklatakip.com/calisma2/files/uploads/12126934709.pdfIn PDF document text
    • https://jhservice.net/imagenes/galeria/files/rojimuxozata.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5478411fd40fa0161ee70653bd8f4138/viwimoziligafos.pdfIn PDF document text
    • http://sb555.com/photo/file/4666887601.pdfIn PDF document text
    • http://jca-t.com/fck_image/file/wozuve.pdfIn PDF document text
    • https://pezolorizogor.weebly.com/uploads/1/3/4/6/134692003/pasikalidu.pdfIn PDF document text
    • https://vejuxafesopekub.weebly.com/uploads/1/3/6/0/136010302/ribiluzupuropena.pdfIn PDF document text
    • https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/lorigujekat.pdfIn PDF document text
    • https://fajubixinusejeg.weebly.com/uploads/1/3/4/8/134850070/9637340.pdfIn PDF document text
    • https://fipugodegiposal.weebly.com/uploads/1/3/4/6/134687615/7120266.pdfIn PDF document text
    • https://zelogevoge.weebly.com/uploads/1/3/1/4/131483318/5eadd84.pdfIn PDF document text
    • http://worldcar.jp/userfiles/files/57479916741.pdfIn PDF document text
    • http://stylingstories.nl/kcfinder/upload/files/30224154920.pdfIn PDF document text
    • https://tejukazirinari.weebly.com/uploads/1/3/1/3/131398521/betonaruto-vogal.pdfIn PDF document text
    • https://gapixupat.weebly.com/uploads/1/3/1/6/131637313/megipe-vubamox.pdfIn PDF document text
    • https://sakata-mokuzai.com/db/item/uploads/files/vibenuvebedewazi.pdfIn PDF document text
    • https://dubasebajulux.weebly.com/uploads/1/3/1/3/131382081/36817d6f.pdfIn PDF document text
    • https://kuweperiti.weebly.com/uploads/1/3/4/9/134904821/togozazupugurigidavu.pdfIn PDF document text
    • https://vodesaladamaju.weebly.com/uploads/1/3/5/2/135298616/vusej.pdfIn PDF document text
    • https://jijalasigode.weebly.com/uploads/1/3/4/3/134344414/pugenexo.pdfIn PDF document text
    • https://tvsporedi.si/vsebina/50161177714.pdfIn PDF document text
    • http://umpn.pnl.ac.id/asset/kcfinder/upload/files/terikumefufa.pdfIn PDF document text
    • http://ferrocom-spb.ru/userfiles/files/fumesu.pdfIn PDF document text
    • http://fishlinkworldwide.my/assets/kcfinder/upload/no_user/files/70067173917.pdfIn PDF document text
    • http://mbnlpc.com/assets/admin/ckeditor/kcfinder/upload/files/pesijitojowij.pdfIn PDF document text
    • https://t-groupvnxkld.com/uploads/news_file/tisixebemuvibinor.pdfIn PDF document text
    • https://revapukas.weebly.com/uploads/1/3/5/3/135323612/gomowoledawe-tavuwu-rapeg.pdfIn PDF document text
    • https://thedigitalsystems.com/userfiles/file/fuladajexag.pdfIn PDF document text
    • http://santiagoporter.com/js/ckfinder/core/connector/php/files/zubenikiluvobogo.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=download+apk+guitar+tabs+proPDF 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_off0004bfc8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004bfc8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004bfc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BFC8 10856 bytes
SHA-256: b14b938b8b7622b2a3e88a179ddad693c740b43118ddf9e92b71765314aee8c8
font_01_sfnt_off0004d88f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D88F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0004f0a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F0A1 17388 bytes
SHA-256: dee95be716fee2e20957019fbde10855ef1fe1e1267e31cead409972fcc6ac9c