Malicious PDF — malware analysis report

Static analysis result for SHA-256 4501a25ae0577e1c…

MALICIOUS

PDF

123.9 KB Created: 2022-04-07 13:34:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: b8309391147351a3f40c6bd44b89a24b SHA-1: 75dd11ba18129f46f799fb286301350708630c25 SHA-256: 4501a25ae0577e1c2405987463cb117515f2a2706ff0e8b5f688c344f3433eec
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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
  • 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.
  • 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://yoyep.co.za/YmrXLWy8?keyword=what%20factors%20affect%20action%20potential%20conduction%20velocity PDF link annotation
    • http://www.mkfilm.it/ckeditor/kcfinder/upload/files/wumod.pdfIn PDF document text
    • https://firuruxuzero.weebly.com/uploads/1/3/7/5/137502241/4417034.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/162317a64d5ca5---29644960247.pdfIn PDF document text
    • https://kazusabetife.weebly.com/uploads/1/3/5/3/135318045/6196678.pdfIn PDF document text
    • https://medowiwufaj.weebly.com/uploads/1/3/4/4/134480571/gevefakedesera-kuduwis-puguxeboroj.pdfIn PDF document text
    • https://resttour.com/images/userfiles/files/19166567978.pdfIn PDF document text
    • http://barrybusiness-crm.com/ressource/devis-photo/files/85331653744.pdfIn PDF document text
    • http://strahovka66.ru/userfiles/file/tobokavuvedukavezetuku.pdfIn PDF document text
    • https://gibejuta.weebly.com/uploads/1/3/0/7/130776113/xoriro_sidib_lorora.pdfIn PDF document text
    • http://ryyw.com/upload/files/2022/03/202203271454024774.pdfIn PDF document text
    • https://kujofajatoniw.weebly.com/uploads/1/3/1/4/131406813/696112.pdfIn PDF document text
    • http://ellipsisnovel.com/file_space/files/zapotutewovoxo.pdfIn PDF document text
    • https://menixikamu.weebly.com/uploads/1/3/1/4/131437341/4e9b6c595.pdfIn PDF document text
    • https://silosapa.weebly.com/uploads/1/3/4/5/134580216/97cfad73cd6350.pdfIn PDF document text
    • https://wakukowasipala.weebly.com/uploads/1/3/4/6/134649118/1374.pdfIn PDF document text
    • https://wowuleraregode.weebly.com/uploads/1/3/4/6/134690179/mukabaxupapipazoz.pdfIn PDF document text
    • https://aarhuskortet.dk/images/file/20246611587.pdfIn PDF document text
    • http://pierrevillers.fr/mairie_files/file/22638573806.pdfIn PDF document text
    • https://fexagire.weebly.com/uploads/1/3/0/7/130775556/namidagu-pejefina-kukunatejuposap-mobumo.pdfIn PDF document text
    • http://retroscope.menu-card-maker.com/uploads/files/58914193551.pdfIn PDF document text
    • http://textilprint-mm.com/userfiles/files/bunarexepazarem.pdfIn PDF document text
    • https://suzaruluzi.weebly.com/uploads/1/3/4/4/134455671/7497537.pdfIn PDF document text
    • http://electronicascanaresas.com/kcfinder/upload/files/zopekoxuvewovub.pdfIn PDF document text
    • http://fcms.nl/KCFinder/upload/files/siwolazugigixozol.pdfIn PDF document text
    • https://taninuto.weebly.com/uploads/1/3/4/6/134633468/wurowewi.pdfIn PDF document text
    • https://mirurilusenut.weebly.com/uploads/1/3/4/6/134631679/xajupug_liris_zavopipefutita_nebabenafuzize.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_off00017ff8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00017ff8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017ff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17FF8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001980f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1980F 10992 bytes
SHA-256: ea53b34e48691d8c1cbe350ae242492004738ea7ce35dc405b01118d64786e12
font_02_sfnt_off0001b195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B195 18612 bytes
SHA-256: 03ad499feeb5ae91abd66e9d5d70799b10ab08f253ce2180d03a971fc96dfc79