Malicious PDF — malware analysis report

Static analysis result for SHA-256 1911d57dc33b3c5f…

MALICIOUS

PDF

77.5 KB Created: 2022-05-03 09:40:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 940ad735173d2375133809be133b2b58 SHA-1: 6553cfb8fce27ed2fbf91be92e92e287624726d6 SHA-256: 1911d57dc33b3c5f670f35e22c5fd304cdf86d5d83f4bdb8c1dd676617360e0e
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mifuj.co.za/YmrXLWy8?keyword=book%20report%20sample%203rd%20grade PDF link annotation
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ed176765548a6c44d2e38937f91fa36f/lezilikuvuguzis.pdfIn PDF document text
    • http://auto-fiesta.ru/upload/files/1383742442.pdfIn PDF document text
    • https://kaptenhoki.net/contents/files/64326032880.pdfIn PDF document text
    • https://jordanadams.com/ckfinder/userfiles/files/fizesilizagike.pdfIn PDF document text
    • https://bedandbreakfastholten.nl/userfiles/file/97516386206.pdfIn PDF document text
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1621745a7ad23e---nonazadux.pdfIn PDF document text
    • https://gepogixuzusesil.weebly.com/uploads/1/3/3/9/133999736/313a10c.pdfIn PDF document text
    • https://dosabaret.weebly.com/uploads/1/3/4/8/134861273/gadumipux-nebibatilowasa-dowadifaxaluw-puwufukadeje.pdfIn PDF document text
    • https://zezazuzomej.weebly.com/uploads/1/3/1/0/131070861/5172696.pdfIn PDF document text
    • http://warsztatgdynia.pl/app/webroot/media/files/fumesavinike.pdfIn PDF document text
    • http://hzkontejnery.cz/ckfinder/userfiles/files/berivuwunaj.pdfIn PDF document text
    • https://kupafejesuxab.weebly.com/uploads/1/3/4/6/134650707/vekuxugegoredegeg.pdfIn PDF document text
    • http://0985028898.kad.tw/kads/ckfinder/userfiles/files/bixosibitogobojogivepexox.pdfIn PDF document text
    • http://familiegravesen.dk/ckfinder/userfiles/files/vejojuvinalidupaw.pdfIn PDF document text
    • https://femowoziso.weebly.com/uploads/1/3/1/3/131398515/zezetarowolot_nirejatapasukag.pdfIn PDF document text
    • http://zahradnisluzby.eu/foto/image/files/8891109780.pdfIn PDF document text
    • http://smartbazar.online/app/webroot/upload/files/88748256912.pdfIn PDF document text
    • https://muwozijazi.weebly.com/uploads/1/3/4/7/134736858/4d08f96605.pdfIn PDF document text
    • https://timitadenemegi.weebly.com/uploads/1/3/4/7/134728598/wupomapasadup.pdfIn PDF document text
    • http://retailpark.bg/uploads/wysiwyg/files/9032918260.pdfIn PDF document text
    • http://gr-chem.com/upload/files/55066336888.pdfIn PDF document text
    • https://romevezijije.weebly.com/uploads/1/3/4/7/134756673/8b586b0.pdfIn PDF document text
    • https://tevomijirurefo.weebly.com/uploads/1/3/4/8/134846864/2663249.pdfIn PDF document text
    • https://e-room.co/userfiles/file/vexumazixo.pdfIn PDF document text
    • https://galofufe.weebly.com/uploads/1/3/1/3/131384583/8926950.pdfIn PDF document text
    • http://zamokugrofa.sk/admin/fckeditor/file/58678582948.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_off0000cc2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC2B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE442 10856 bytes
SHA-256: 713cb587800938e94b53d8aaf94e37711a64ea21a7e7b53d6a462a4f0ce01cd2
font_02_sfnt_off0000fd3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD3C 16612 bytes
SHA-256: adcbd9c87a9a0dad0a601f9c4fb85ade4d6cd2bdff47e935e083eee414059f09