Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8ec5a1b50fada5…

MALICIOUS

PDF

182.1 KB Created: 2021-08-15 21:43:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 671c9c1ab0996d55181adfd7e2ce425a SHA-1: da005861e95d10a29e2c860cab3d87f31d460d11 SHA-256: 5d8ec5a1b50fada51f64f016479bed585e1f2769a0b8525887cbf61a201117d9
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9836

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 https://amatnieks.com/pictures/image/lubigitejuponibivuziwa.pdf In PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a1472762d5e---98639448370.pdfIn PDF document text
    • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607b85c8911b2---kereniraripoworofojokixif.pdfIn PDF document text
    • http://schodylux.pl/userfiles/file/78777569340.pdfIn PDF document text
    • http://vaness-sens.fr/ckfinder/userfiles/files/tilukijedilizo.pdfIn PDF document text
    • http://gruaszarate.com/ckfinder/userfiles/files/jejexujajenagovogu.pdfIn PDF document text
    • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/hd8sot92tfg5237pb0a2nrg4l4/xiwozekofaxasikop.pdfIn PDF document text
    • https://agrilaui.com/userfiles/file/34130722141.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/2563nbsr72s5s8dv5v8m24389p/tadavifidisig.pdfIn PDF document text
    • https://sasalidayanisma.org/uploads/file/72337096959.pdfIn PDF document text
    • http://boathousebrokerage.com/userfiles/file/kawabupewuj.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608387015d4c9---wufolesodigobokibobu.pdfIn PDF document text
    • http://innovatepc.com/userfiles/file/76224962429.pdfIn PDF document text
    • http://dataction.org/demo/dataction/media/25995593670.pdfIn PDF document text
    • http://teplolux72.ru/upload/file/lezigirawizepakunagoviz.pdfIn PDF document text
    • http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/zekalamemamar.pdfIn PDF document text
    • http://elite-nails.pl/Upload/file/10847244418.pdfIn PDF document text
    • http://dallapietamarchisio.it/userfiles/files/fukidemepubopikenub.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160daa53c90d90---51059747209.pdfIn PDF document text
    • https://warungmimpishio.com/contents//files/zexexugimixu.pdfIn PDF document text
    • https://thietkeweblongan.com/upload/files/wigobepokejowax.pdfIn PDF document text
    • http://fireprovietnam.net/luutru/files/befevivugupegake.pdfIn PDF document text
    • http://secretinvitation.net/images/files/lomokojubulu.pdfIn PDF document text
    • http://truhlarstvisollner.cz/data/file/nipazu.pdfIn PDF document text
    • http://dainichiji.com/upload_ckr/files/muzovetubabed.pdfIn PDF document text
    • https://hogies.com/includes/template/uploads/file/fexadanifotipetewefa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=a+wrinkle+in+time+2003+full+movie+youtubePDF 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_off00026632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26632 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00027e44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27E44 19036 bytes
SHA-256: 5a88f4e1bf0c29e9fb75bc9cffcf72ae8badb2d4a9aaf6e2571d063b57bbb484
font_02_sfnt_off0002b041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B041 11036 bytes
SHA-256: 2943b07bc1ce5c79e7a9c731e8f93a2466b6b2a78339819df6de555f416e49fa