Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c863a6b4a689ac…

MALICIOUS

PDF

74.1 KB Created: 2022-04-25 12:19:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: 3415f9d0855c25e7fee8f5b3c49390f1 SHA-1: 9804332e5674381ec02b2db9821eeff7491c1918 SHA-256: a9c863a6b4a689ac1f8b255ec5f476e933c1b1ba8d2ceaee072b4e83e974efaa
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 http://diveblubari.it/custom/archivio/files/46081726888.pdf In PDF document text
    • https://moxujudafetofa.weebly.com/uploads/1/3/2/7/132712376/kujajijefid-wusuto-jovugut.pdfIn PDF document text
    • https://birisudim.weebly.com/uploads/1/3/4/4/134467091/4565995.pdfIn PDF document text
    • https://tavekudu.weebly.com/uploads/1/3/4/6/134631894/26635a.pdfIn PDF document text
    • https://wumefabifu.weebly.com/uploads/1/3/4/8/134888429/7893c.pdfIn PDF document text
    • http://sakatachuo-rc.jp/imagesuser/files/nojugiji.pdfIn PDF document text
    • https://manuscripthandler.com/userfiles/file/wibozabijorodofizule.pdfIn PDF document text
    • https://gazevasodixobex.weebly.com/uploads/1/3/4/4/134437076/bd4f31f0706d4d6.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1623c5dbbddb92---48926381969.pdfIn PDF document text
    • https://xokokojimaxuwot.weebly.com/uploads/1/3/5/3/135345946/xonajobo_xefaba_lelibu_pibiwov.pdfIn PDF document text
    • http://boathousebrokerage.com/userfiles/file/nolarisij.pdfIn PDF document text
    • https://rufijaduruki.weebly.com/uploads/1/3/4/3/134311805/617c274cae0.pdfIn PDF document text
    • https://buzoxebujodi.weebly.com/uploads/1/3/5/9/135971705/wonogosu_mujijazipoxefa_xogokofoba.pdfIn PDF document text
    • https://tutupofu.weebly.com/uploads/1/3/0/9/130968911/7779585.pdfIn PDF document text
    • https://zomanuvid.weebly.com/uploads/1/3/4/4/134477829/4213209.pdfIn PDF document text
    • https://thediamangroup.com/_images/files/44554097815.pdfIn PDF document text
    • https://wuletalevuvefam.weebly.com/uploads/1/3/1/3/131379877/kaxisosemebukijenura.pdfIn PDF document text
    • https://kobigaxa.weebly.com/uploads/1/3/3/9/133997295/6535b1e6539f45a.pdfIn PDF document text
    • https://punavetajude.weebly.com/uploads/1/3/4/3/134318529/fitas-xebitu.pdfIn PDF document text
    • http://alwaysshine.com/fileimage/file/48370815044.pdfIn PDF document text
    • http://otczenacts.com/media/files/32465869507.pdfIn PDF document text
    • https://zugedogal.weebly.com/uploads/1/3/4/7/134748632/lisajesazaje.pdfIn PDF document text
    • https://colod.co.za/YmrXLWy8?keyword=how%20to%20turn%20on%20a%20pioneer%20touch%20screen%20radioPDF link annotation
    • 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_off0000bdf3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bdf3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bdf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDF3 16776 bytes
SHA-256: 132f6c115cdaf44167a902b93b40983b23de9455612b589873659e671a4e0337
font_01_sfnt_off0000e968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE968 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001017f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1017F 10740 bytes
SHA-256: b46181a1a139f69f4831545521b962b4cd72f3927d84ee134f0677917ee4c573