Malicious PDF — malware analysis report

Static analysis result for SHA-256 191c6681df9001c7…

MALICIOUS

PDF

351.8 KB Created: 2022-04-11 00:13:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 1af91e0b7dcff024ba50c8147ac11f3b SHA-1: 6828a74922a25225a5220e21250883a4c6f31504 SHA-256: 191c6681df9001c7aaf45fb1a0cfa3522a2090b26e42131c1aaa1fd1f9531dc8
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://lovig.co.za/XSRYdR1H?utm_term=free+baby+doll+cradle+woodworking+plans PDF link annotation
    • https://molikosa.weebly.com/uploads/1/3/4/0/134017769/944706.pdfIn PDF document text
    • https://gazerotofutoda.weebly.com/uploads/1/3/4/6/134665132/6706173.pdfIn PDF document text
    • http://workontext.ru/media/file/26750300461.pdfIn PDF document text
    • http://www.village-gaulois.org/gestion/ckfinder/userfiles/files/64009439762.pdfIn PDF document text
    • https://diniwujek.weebly.com/uploads/1/4/1/3/141386465/dd4ee67a1c.pdfIn PDF document text
    • https://jezasozogederek.weebly.com/uploads/1/3/5/9/135960593/970721.pdfIn PDF document text
    • http://all-paca.com/ckeditor/ckfinder/core/connector/php/uploads/files/zilab.pdfIn PDF document text
    • http://numismatika-nbkpdy.cz/userfiles/file/39120759606.pdfIn PDF document text
    • https://ruzabipisoxo.weebly.com/uploads/1/3/4/5/134528447/kuden.pdfIn PDF document text
    • http://manoharvatikaschool.com/userfiles/file/53729517369.pdfIn PDF document text
    • http://noticiasdoms.com/userfiles/file///6707227867.pdfIn PDF document text
    • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623eba72a482a---36007206927.pdfIn PDF document text
    • http://way-of-spirit.ru/upload/file/15803425554.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1623dbfefa67e6---90707076490.pdfIn PDF document text
    • https://martensmgt.com/business_school/uploads/file/13581447248.pdfIn PDF document text
    • https://kutenamig.weebly.com/uploads/1/3/0/7/130740069/9836772.pdfIn PDF document text
    • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/4d01e7ec908bdb9b114fbcce16f37269/76544337332.pdfIn PDF document text
    • http://bhk-aindling.com/userfiles/files/54953055204.pdfIn PDF document text
    • http://wok4all.nl/newerac2c/userfiles/file/zajoxexixupi.pdfIn PDF document text
    • http://syscall.com.tr/panel/kcfinder/upload/files/86828228120.pdfIn PDF document text
    • https://meesens.be/KrMee/Tekstverwerker/gogabiperatolupemoj.pdfIn PDF document text
    • http://cozyboutiquecruise.com/upload/fck/file/parira.pdfIn PDF document text
    • https://ytdrive.com/CKEdit/upload/files/mikexokakizusegokerusona.pdfIn PDF document text
    • https://inovadmin.pavicer.pt/uploads/files/xazer.pdfIn PDF document text
    • http://tuanlongland.com/upload/files/38001826225.pdfIn PDF document text
    • http://zjnep.com/ckeditor/ckfinder/userfiles/files/41315771725.pdfIn PDF document text
    • https://nosirulewefew.weebly.com/uploads/1/3/4/2/134236253/wukekek.pdfIn PDF document text
    • https://lapawiniposa.weebly.com/uploads/1/3/5/3/135323982/bepogejemujaxoxi.pdfIn PDF document text
    • https://tupipano.weebly.com/uploads/1/3/4/5/134598946/7550254.pdfIn PDF document text
    • https://seeyounow.net/userfiles/file/32670060004.pdfIn PDF document text
    • https://purubagenipobeb.weebly.com/uploads/1/3/1/3/131398544/sesodixebol_webuteni_pitilujakevawiw.pdfIn PDF document text
    • https://rojanudase.weebly.com/uploads/1/3/0/9/130969060/40486745c02.pdfIn PDF document text
    • https://ceb.lk/assets/js/kcfinder/upload/files/rudilixojob.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_off00050da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50DA9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000525c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x525C0 11000 bytes
SHA-256: 3574cdef132f27ae0b63f4ace3b19382005b57e7285df0f921808affc09fb151
font_02_sfnt_off00053f04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F04 18508 bytes
SHA-256: cce4a1189b2b6cb8eb28c109534ac42ab93d5bf67f15708e377d089449f3deab