Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e9846a39f00867…

MALICIOUS

PDF

77.9 KB Created: 2021-11-08 02:14:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 2f01f9e8c454ce63f998f32d3fb80d6b SHA-1: d313fb1f28c7aac2c365f0dc50dfa7f27aa3d519 SHA-256: d3e9846a39f00867e1a302255c04cbc50f0b8ae84c171cc008c886a47d064282
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://stellamaris.cz/userfiles/11619596728.pdf In PDF document text
    • https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/57e59247155999f87d1635b12c876af4/52029453803.pdfIn PDF document text
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/60820519e3d398c06d9216740f1a5150/labibiruzumunuzemuza.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/7f988f85cddce65ceaead8ff527694e7/31064839751.pdfIn PDF document text
    • http://de-ko-gmbh.com/ckfinder/userfiles/files/56212000540.pdfIn PDF document text
    • http://jayeonrak.com/upfile_editor/2021/files/69663203875.pdfIn PDF document text
    • http://valdhans.cz/userfiles/file/gukoridotamevirawum.pdfIn PDF document text
    • http://pokwuttibut.com/file_media/file_image/file/farerepen.pdfIn PDF document text
    • http://casadiriposomarsala.it/userfiles/files/vefarorabezowumijuteko.pdfIn PDF document text
    • http://ahaadesign-com-tw.sales-frontier.com/ckfinder/userfiles/files/rofiwavejonodazedegu.pdfIn PDF document text
    • https://protrialse.eu/files/files/tamoguli.pdfIn PDF document text
    • https://thietbiotoviet.com/Images_upload/files/45202826043.pdfIn PDF document text
    • http://7m-shop.com/userfiles/file/71962989061.pdfIn PDF document text
    • http://zhongguohuachun.com/d/files/mezenuxagalenasifopaletul.pdfIn PDF document text
    • https://bandotrading.com/uploads/file/dupon.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/hgev7ga3bam2kps9h1o9cq4po1/lugagabepuvugomika.pdfIn PDF document text
    • http://honyi.tw/ckfinder/userfiles/file/92314608856.pdfIn PDF document text
    • http://www.amanuttarakhand.org/ckfinder/userfiles/files/78375049043.pdfIn PDF document text
    • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff13253f8e---74079348910.pdfIn PDF document text
    • https://giant-nano.com/app/webroot/userfiles/files/zovilozi.pdfIn PDF document text
    • http://vako.vn/app/webroot/uploads/files/zibuf.pdfIn PDF document text
    • https://bbpartner.cz/userfiles/file/23232183185.pdfIn PDF document text
    • http://chia4kids.ru/ckfinder/userfiles/files/63109056164.pdfIn PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135f47096967---76270916880.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/KGDyd8lM0uI/uplcv?utm_term=foster+brother+meaning+in+englishPDF 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 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_off0000c632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC632 19684 bytes
SHA-256: 9a2fbcfec7d6afed763140e1715f2dc88e62bb3be37e07feb57102f75a92718b
font_01_sfnt_off0000fa37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA37 10672 bytes
SHA-256: 663c7a957160055d63ecf0c2ed257aa0e6d8302b6d905d82110ee55608cf7054
font_02_sfnt_off00011278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11278 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef