Malicious PDF — malware analysis report

Static analysis result for SHA-256 9418b0a55a0c29e7…

MALICIOUS

PDF

83.9 KB Created: 2021-10-04 14:50:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 81041ad28bb437781e4e0cc78fcc9302 SHA-1: e78990fa50c8666d34d0c0b89c2529b88bee7876 SHA-256: 9418b0a55a0c29e70cb1751266e37d6e756f6af63d78957afcb9cf9b857217cd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://inwebjor.ru/uplcv?utm_term=music+mashup+quiz+with+answers PDF link annotation
    • http://aotwresort.net/ckfinder/userfiles/files/75752555700.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/om6m5hl5a4ma4okegldsadjlc0/guruwegubovaxofamubo.pdfIn PDF document text
    • https://ccskin.com/geektic/files/zarobuxewuwok.pdfIn PDF document text
    • http://tungalag.mn/userfiles/files/15834960009.pdfIn PDF document text
    • http://zzps.pl/userfiles/file/10258490103.pdfIn PDF document text
    • https://ltes.tw-goods.com/UserFiles/files/babokuw.pdfIn PDF document text
    • http://aktifithalat.com/resimlerfiles/dixur.pdfIn PDF document text
    • http://chemonova.com/FCKeditor/file/5566497001.pdfIn PDF document text
    • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/161382150caa0e---66384245871.pdfIn PDF document text
    • http://hb-hospital.com/file_upload/fck_upfile/file/50103797908.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/c43cbd3d48c52618b6ff803409457092/507542743.pdfIn PDF document text
    • http://balaton.varosom.hu/userfiles/files/ralujefuboze.pdfIn PDF document text
    • http://ipcmanpower.com/admin/style/images/userfiles/file/bojepubow.pdfIn PDF document text
    • http://theprofitnesstrainers.com/userfiles/file/guduwoxininel.pdfIn PDF document text
    • https://giritrademark.com/content_files/files/dufemafigulewojajipunog.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139605995233---kevewexedapigima.pdfIn PDF document text
    • https://imagebrandstudio.com/userfiles/file/vogebuwenetiwujubibikul.pdfIn PDF document text
    • http://otworz-biuro-podrozy.pl/userfiles/file/duvakesapegurusug.pdfIn PDF document text
    • http://alda.pl/ckfinder/userfiles/files/kojewiluxukefalisetol.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/vemapijozawuzabemiga.pdfIn PDF document text
    • http://eventclub.pl/userfiles/file/garisaxasitaweropuvus.pdfIn PDF document text
    • https://sadex.pl/fck/file/1550065872.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_off0000df84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF84 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF796 19168 bytes
SHA-256: 918eac5afc09b292cd615ea7a6066f74e7ac2dc6c3b06eeb7f1e6015de9944ac
font_02_sfnt_off0001289b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1289B 10860 bytes
SHA-256: b9bf8e39b55574bf6b42e3c9cf50a4b9df277bf493f9ddab5a7e1de29768ffb0