Malicious PDF — malware analysis report

Static analysis result for SHA-256 634b9c0851f60183…

MALICIOUS

PDF

82.7 KB Created: 2022-03-31 20:42:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: f97eda3f758ad7654a44d79aa2ec8c00 SHA-1: 41875fb802816958aba3bd1a376a88d76afb62f8 SHA-256: 634b9c0851f601833b1e6ebb467d1185b7b5711fd7df44309e578e47628baeab
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://cafij.co.za/YmrXLWy8?keyword=how%20to%20clean%20electric%20range%20drip%20pans PDF link annotation
    • https://dibixudu.weebly.com/uploads/1/3/4/5/134528380/toxojurog.pdfIn PDF document text
    • https://towedesufab.weebly.com/uploads/1/3/5/3/135392656/5973274.pdfIn PDF document text
    • http://progettarecasa.com/userfiles/files/memage.pdfIn PDF document text
    • https://agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/42449378212.pdfIn PDF document text
    • https://waguwejulunesu.weebly.com/uploads/1/3/5/3/135301122/f505b.pdfIn PDF document text
    • http://tatvan.in/userfiles/file/bobikewanetozumulise.pdfIn PDF document text
    • https://brod-plovdiv.com/images/32163600225.pdfIn PDF document text
    • https://xavimunemu.weebly.com/uploads/1/3/2/8/132815343/9f3106f.pdfIn PDF document text
    • https://kajibelewori.weebly.com/uploads/1/3/4/3/134307873/7099512.pdfIn PDF document text
    • https://tozupolut.weebly.com/uploads/1/3/0/9/130969077/riwitoxagu-jekexizinon-bozojidipiwak.pdfIn PDF document text
    • http://smartbazar.online/app/webroot/upload/files/42762966691.pdfIn PDF document text
    • https://zoxexalibefan.weebly.com/uploads/1/3/0/9/130969973/8f1c0136424.pdfIn PDF document text
    • https://guwakeba.weebly.com/uploads/1/3/4/5/134597639/soxojuj-tuxokisot-pokagazu-fegano.pdfIn PDF document text
    • https://istanbularicilikfestivali.com/upload/ckfinder/files/38606604443.pdfIn PDF document text
    • http://xn--b1adadl3aoabascoo.xn--p1ai/upload/files/bifev.pdfIn PDF document text
    • https://texifuxifom.weebly.com/uploads/1/3/0/7/130776695/ec6d52.pdfIn PDF document text
    • https://viwukafum.weebly.com/uploads/1/3/0/7/130738591/6616451.pdfIn PDF document text
    • https://obo.olsztynek.pl/assets/includes/kcfinder/upload/files/fagux.pdfIn PDF document text
    • https://icbacademy.com/upload/files/bubopimapelibevub.pdfIn PDF document text
    • http://epoptavky.com/is/images/FCKeditor/File/30153292073.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_off0000c64f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c64f.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c64f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC64F 17220 bytes
SHA-256: 2f745a6eeb34e02ee603f08bfc9dc50352ab6e3ff6ba9b221a246e7f56382d81
font_01_sfnt_off0000f2dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010aee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEE 16376 bytes
SHA-256: 0c133022d1e9883d2ff7035cf84f1fa0be9cfa0d671266bc5a940283bc0f9855
font_03_sfnt_off00012117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12117 10764 bytes
SHA-256: aedbc0a0337e1e148f95df0fa68dd055dcd4765addba6f4bd81ebdf4b9dbec3a

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