Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c736b1fdaa0c6c…

MALICIOUS

PDF

76.7 KB Created: 2022-04-13 02:47:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: bf64d472a9a0ff95ae462caf0130a6a3 SHA-1: 36aa69871587b7aad7a526adf03484c2623c2719 SHA-256: a9c736b1fdaa0c6c2ef86f4550ae278d88f183e7fb0fd95c518e592810feae56
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://ragaz.co.za/YmrXLWy8?keyword=que%20significa%20cianuro%20de%20hidr%C3%B3geno PDF link annotation
    • https://mb-classic-service.de/userfiles/file/butamobi.pdfIn PDF document text
    • https://www.ozkozel.sk/kcfinder/upload/files/memiwapipegokosavitepa.pdfIn PDF document text
    • http://mindatpeace.us/uploads/files/wisomineposefe.pdfIn PDF document text
    • http://kasand.com/userfiles/sodazogovupupejutewibikig.pdfIn PDF document text
    • https://wufenimikefi.weebly.com/uploads/1/3/4/3/134366244/696eb34b9561f5.pdfIn PDF document text
    • https://dpmptsp.pemkomedan.go.id/dpmptspwebaplikasi/libraries/ckeditor/kcfinder/upload/files/3216468764.pdfIn PDF document text
    • http://sartoriaventurini.com/userfiles/files/puxebadurolod.pdfIn PDF document text
    • https://kogogufawarux.weebly.com/uploads/1/3/7/5/137514866/5930831.pdfIn PDF document text
    • http://biemmecommerciale.eu/userfiles/files/46818819104.pdfIn PDF document text
    • http://pyramidplaster.com/file_media/file_image/file/40866526438.pdfIn PDF document text
    • https://tipujinozubuva.weebly.com/uploads/1/3/4/8/134883375/mujazar_wunajabo.pdfIn PDF document text
    • https://kivijakesav.weebly.com/uploads/1/3/2/7/132740669/5fd932a.pdfIn PDF document text
    • http://vip-cond.ru/userfiles/file/90982754925.pdfIn PDF document text
    • https://en.unecol.com/uploads/kcfinder/upload/files/numamozawuweberum.pdfIn PDF document text
    • http://ctyrkolky-gamax.cz/data/dokumenty/65345913788.pdfIn PDF document text
    • https://degitetebumike.weebly.com/uploads/1/3/1/8/131857056/3e548.pdfIn PDF document text
    • http://pokrowce-ochronne.pl/Upload/file/videwaxagepodunuburi.pdfIn PDF document text
    • http://stevis.cz/files/file/39870236273.pdfIn PDF document text
    • https://sesuzefodapu.weebly.com/uploads/1/3/2/8/132815176/4304115.pdfIn PDF document text
    • https://xegiwisupanax.weebly.com/uploads/1/3/4/3/134367095/4928592.pdfIn PDF document text
    • http://master-vin.ru/files/file/welukibopom.pdfIn PDF document text
    • http://dns.eutechmicro.com/upload/file/20220402174850.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_off0000bfd4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bfd4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bfd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d7e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E6 19148 bytes
SHA-256: 1355fd128ebed90d05778f59a1d191bc7e65bfa5f1a4f17f110e920e93027123
font_02_sfnt_off0001097c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1097C 10908 bytes
SHA-256: 09309bcece7613b7c22163e8867cf8eaa1eaa2bfafa2988b7141ce23b4a22647