Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de109fa45789f12…

MALICIOUS

PDF

80.6 KB Created: 2022-04-08 12:32:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 756f87cd7bf443fa08f8a428a2b6a376 SHA-1: f70d81bf9b7dbf6608480737f034386cf7ff8a5b SHA-256: 4de109fa45789f12059dc416e6ba8f1bc1ad5928e55bab53902f8e882a06b375
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://nezodutulep.weebly.com/uploads/1/3/4/8/134883135/a5dfe07cbe700ba.pdf.
  • 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://ragaz.co.za/YmrXLWy8?keyword=sum%20of%20interior%20angles%20of%20a%20regular%20polygon%20formula PDF link annotation
    • http://wetravels.com/kcfinder/upload/files/31442614727.pdfIn PDF document text
    • https://nezodutulep.weebly.com/uploads/1/3/4/8/134883135/a5dfe07cbe700ba.pdfIn PDF document text
    • http://toitureetfacade.fr/data/Files/8700193097.pdfIn PDF document text
    • https://schneider-rozetki.su/kcfinder/upload/files/18758405512.pdfIn PDF document text
    • https://sonelalakilo.weebly.com/uploads/1/3/4/4/134400406/62950.pdfIn PDF document text
    • https://vetazewufa.weebly.com/uploads/1/3/2/8/132814418/sikoxoragagaruvur.pdfIn PDF document text
    • https://casartigianiudine.busletter.it/ckfinder/userfiles/files/robadelo.pdfIn PDF document text
    • https://xosipepimebat.weebly.com/uploads/1/3/2/6/132682768/609759.pdfIn PDF document text
    • https://get-cash-get.site/js/ckfinder/userfiles/files/37770704991.pdfIn PDF document text
    • https://kuweperiti.weebly.com/uploads/1/3/4/9/134904821/roraka.pdfIn PDF document text
    • http://turnyras.lt/Files/file/72798874607.pdfIn PDF document text
    • https://zaranofe.weebly.com/uploads/1/3/5/9/135967679/semosunufatab.pdfIn PDF document text
    • https://xarojitoma.weebly.com/uploads/1/3/5/3/135305856/sujen.pdfIn PDF document text
    • https://siltri.com/fck_upload/file/rasipid.pdfIn PDF document text
    • https://falumegobe.weebly.com/uploads/1/3/4/7/134702986/mezufifasepekewele.pdfIn PDF document text
    • https://ankaratutuncu.com/panel/kcfinder/upload/files/20377556822.pdfIn PDF document text
    • https://tezefuvin.weebly.com/uploads/1/3/4/4/134496048/wobow.pdfIn PDF document text
    • https://zitofizifejiza.weebly.com/uploads/1/3/4/7/134706741/636901.pdfIn PDF document text
    • https://bopilopuneliniw.weebly.com/uploads/1/3/5/3/135304065/nuwuzupibojozuga.pdfIn PDF document text
    • https://lorivomewojesab.weebly.com/uploads/1/3/0/8/130813497/lobowalajuruvit.pdfIn PDF document text
    • https://mapst.org/Admin/assets/ckeditor/kcfinder/upload/files/raxilixekarepuwijokiw.pdfIn PDF document text
    • http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/zijewerofo.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 extracted file (font_00_sfnt_off0000d527.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d527.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d527.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD527 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ed39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED39 17156 bytes
SHA-256: 87f6bd0189b73fa4c4b587f05ff420ca9985b6b8bc353c7b051e84ef0cff41c7
font_02_sfnt_off00011a68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A68 10992 bytes
SHA-256: c82fb6b12bc79987845507936419383fd3b891c6fc4991a6c52e3c0df7bffaf5