Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3a6652527219aa…

MALICIOUS

PDF

80.0 KB Created: 2021-10-24 21:16:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 19abac7aaa08dc40219621a9f82bedf5 SHA-1: 992314467a2d385d64b8820af9eaa77b8ca7130e SHA-256: 4e3a6652527219aa2e6abc2345019128984251abc96d5bed299f3d8d81ea37e6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 5

  • 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 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://coretry.ru/uplcv?utm_term=keto+grilled+cheese PDF link annotation
    • http://kiszelyugyvediiroda.hu/docs/file/vegumam.pdfIn PDF document text
    • http://altadirezione-consulting.it/userfiles/files/22756118989.pdfIn PDF document text
    • http://waterlootour.com/FileData/ckfinder/files/20210923_D92E9B6322FA633C.pdfIn PDF document text
    • http://canadianrockies.ca/files/file/tegujofolarubivutagid.pdfIn PDF document text
    • https://toskov-yordanov.com/userfiles/file/18970841202.pdfIn PDF document text
    • https://megacook.pt/site/upload/file/pebojosuse.pdfIn PDF document text
    • http://sushinamu.com/uploads/files/57464856057.pdfIn PDF document text
    • https://feniks9.ru/ckfinder/userfiles/files/rodubuvujomomipiv.pdfIn PDF document text
    • http://www.startservis.sk/novy/ckfinder/userfiles/files/bosodinoxibanuba.pdfIn PDF document text
    • http://eva.am/files/639f69da8f78f89c.pdfIn PDF document text
    • http://terrietanaka.com/library/files/94404042458.pdfIn PDF document text
    • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614ae27657359---pizikirakamut.pdfIn PDF document text
    • http://studioguatta.it/userfiles/files/52795091409.pdfIn PDF document text
    • https://unosms.us/userfiles/file/kojubebo.pdfIn PDF document text
    • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16131ae8f0ff62---61955862215.pdfIn PDF document text
    • http://kientrucsangtrong.com/plus/files/xifabewakesomovesofo.pdfIn PDF document text
    • https://pmapmc.com/userfiles/image/files/linakevejewafitav.pdfIn PDF document text
    • http://quangphong.vn/uploads/image/files/wesufidefojoneja.pdfIn PDF document text
    • http://elitvorota.ru/f/file/65228417916.pdfIn PDF document text
    • http://dsfly.com/uploads/files/2391163708.pdfIn PDF document text
    • https://giltmorestukko.hu/ckfinder/userfiles/files/razevakewurerogomepagepaz.pdfIn PDF document text
    • http://saluteebenesseresas.it/userfiles/files/sirekobuzizisesum.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_off0000d501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD501 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ed18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED18 10376 bytes
SHA-256: 1932d135f778f48a2c50bc5fca29412c00cc59a375d544f38471c7025b02291c
font_02_sfnt_off0001046e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1046E 17884 bytes
SHA-256: cf5b8cfe9843a07a75d047870d03efd11d7b690c9d5f702bb988bdf7b9386daf

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