Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af80c0a7560d88a…

MALICIOUS

PDF

488.6 KB Created: 2022-01-27 12:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 1116355af894e73789bbfa20256e9867 SHA-1: 02464828e5f4db4372a5a29a3264aad4edcc22f8 SHA-256: 4af80c0a7560d88aa24c8b0a0ae1a2b4d9c175601fc715e5e7e731e14fc4e44b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4094

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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://loheb.co.za/XSRYdR1H?utm_term=simile+metaphor+personification+hyperbole+worksheet PDF link annotation
    • http://zhongjiukeji.com/upload_fck/file/2021-10-18/20211018103723878175.pdfIn PDF document text
    • https://y3stwk65l-mn9.com/contents/files/mozumekuweradugodewarine.pdfIn PDF document text
    • http://theeultimatenetworker.com/ckfinder/userfiles/files/14530264840.pdfIn PDF document text
    • http://mtcongnghiepxanh.com/upload/fckimagesfile/12943256685.pdfIn PDF document text
    • https://gulfsupremesa.com/ckfinder/userfiles/files/binetudiwolaxaloz.pdfIn PDF document text
    • http://aasghsflqsae.handylover.com/upload/files/lubebufek.pdfIn PDF document text
    • http://loxocongnghiep.com/MINH/user_files/file/fubulakolabogij.pdfIn PDF document text
    • http://vivaldiskibus.com/FileData/ckfinder/files/20210913_C4F789905A8B91DD.pdfIn PDF document text
    • http://sfssolution.com/userfiles/file/60164489577.pdfIn PDF document text
    • https://colegiohyatt.cl/third_party/ckeditor/kcfinder/upload/files/fibugorufiguvebulivudufe.pdfIn PDF document text
    • https://goez3.com/10005001208290177/ckfinder/userfiles/files/92580875080.pdfIn PDF document text
    • https://aspirecambodia-edu.org/userfiles/file/xepokin.pdfIn PDF document text
    • https://samoinstitute.samoinstitute.mn/uploads/assets/file/votakaxavinirat.pdfIn PDF document text
    • http://nova-auto.com/upload/tadokagoja.pdfIn PDF document text
    • http://anhuizhkj.com/upload_fck/file/2021-10-23/20211023042553958986.pdfIn PDF document text
    • http://kepco-group.com/uploaded_files/userfiles/files/22649162896.pdfIn PDF document text
    • https://magatek.com/documents/file/tijujaje.pdfIn PDF document text
    • http://wieswioska.pl/userfiles/file/salozu.pdfIn PDF document text
    • http://dioceseofniranam.org/userfiles/file/91454184592.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf0c08ea52---tetokotegoketo.pdfIn PDF document text
    • https://larrialdiak.es/files/galeria/files/59346753036.pdfIn PDF document text
    • http://quiltingacademy.net/fckeditor/userfiles/file/62707190229.pdfIn PDF document text
    • http://grafittipng.com/userfiles/files/lokasexa.pdfIn PDF document text
    • http://snbh.imadiff.net/kcfinder/upload/files/31184729729.pdfIn PDF document text
    • https://wonkingchina.com/d/files/ramemenirufu.pdfIn PDF document text
    • http://cesishotel.com/res/wysiwyg/file/82215487704.pdfIn PDF document text
    • https://semagro-msw.ru/pics/images/file/59908639010.pdfIn PDF document text
    • https://successstudio.net/userfiles/file/71126499915.pdfIn PDF document text
    • http://predit.ru/admin/ckfinder/userfiles/files/68295448801.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/63ltpu856lnje99j8sfraapk04/11178316477.pdfIn PDF document text
    • http://pasted-radio.de/web/files/kepebokizu.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ca79f11c8f6---gaxudekaziwowalakizubu.pdfIn PDF document text
    • http://foodzipo.com/uploads/userfiles/files/vugiregowutagos.pdfIn PDF document text
    • https://senegal4d.com/contents/files/49178221127.pdfIn PDF document text
    • http://billedbutikken.dk/articlefiles/file/kebawexosowisil.pdfIn PDF document text
    • https://intertelleader.com/FCKupload/file/pasesanabikivixaz.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137fddcabe91---98883748931.pdfIn PDF document text
    • http://www.barczyk.plwww.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/kakebenuvukap.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00073377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73377 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00074a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A16 17544 bytes
SHA-256: e4d744394e2d78db519e9b0a349c6283667947741f7f44807213d7b10a4d696e
font_02_sfnt_off000777f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777F2 11252 bytes
SHA-256: 0dc7994b1764fdce61bde006256ec24c91ca52559d2ce5f7c81dbd4fb28277f2