Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99176b0b4fce315…

MALICIOUS

PDF

80.3 KB Created: 2021-10-28 22:04:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 2242d5ac5f7551127ca55c53c69c84fb SHA-1: d815448429ceb243bf1dfd955b37eefffa6ac7b6 SHA-256: f99176b0b4fce315149802a16f86b5c3261dc15691c7b72012fa57e2db825563
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 5

  • 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 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://allytemp.ru/uplcv?utm_term=to+be+addressed PDF link annotation
    • https://www.sistemkabin.com/ckfinder/userfiles/files/15438695335.pdfIn PDF document text
    • https://magyar-logyogyasz.hu/fileok/file/15406034807.pdfIn PDF document text
    • http://esistore.de/userfiles/file/wisojisalivivulivi.pdfIn PDF document text
    • https://goez3.com/10005001208290177/ckfinder/userfiles/files/34172333358.pdfIn PDF document text
    • https://classoft.ro/userfiles/file/dimogivonafibirorebanegu.pdfIn PDF document text
    • http://kondicionery-pushkino.ru/upload_picture/file/vexiremegisazozemug.pdfIn PDF document text
    • https://ripedzn.com/app/webroot/files/fckeditor/file/35522257078.pdfIn PDF document text
    • http://starwindows.ie/ckfinder/userfiles/files/batazugibufomaxumominoma.pdfIn PDF document text
    • http://mobilesamara.com/img/files/file/7133824753.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/161588441cf557---minuxavexakovojewusa.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616827be4782e---desuduj.pdfIn PDF document text
    • https://evrenmentese.com/upload/ckfinder/files/wawam.pdfIn PDF document text
    • http://toyteepee.com/uploadfiles/file/211017044312406700ll1uy7.pdfIn PDF document text
    • http://gzpropellers.com/uploadfile/files/35805908608.pdfIn PDF document text
    • http://rioairporttransfer.com/ckfinder/userfiles/files/47274841648.pdfIn PDF document text
    • http://acutecardio.ru/sadm_files/xoxolevokove.pdfIn PDF document text
    • http://cuuhoatudong.com/upload/files/14542297551.pdfIn PDF document text
    • http://naturestuff.nl/siteimages/file/58952162645.pdfIn PDF document text
    • http://bargiel.com.pl/ckfinder/userfiles/files/kuputixovegatusufiw.pdfIn PDF document text
    • https://namkhoasaigon.vn/web/images/files/mobidukonareronarokal.pdfIn PDF document text
    • https://www.ebenisterie-burette.com/ckfinder/userfiles/files/rawinagonadoxenelibog.pdfIn PDF document text
    • http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/lilad.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_off0000d5a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A2 18336 bytes
SHA-256: 4230c0230b87b1b1245140b2bd99b2cd8a1f7fa40b4451a03dbf49d593122ebd
font_01_sfnt_off0001059b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1059B 10004 bytes
SHA-256: 0d118abe3e2ac6c08d4eeb36aec58660f10b8772256998348c955824b832ae81
font_02_sfnt_off00011be3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BE3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1