Malicious PDF — malware analysis report

Static analysis result for SHA-256 445f8910f19f0559…

MALICIOUS

PDF

99.8 KB Created: 2022-04-10 00:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 85df8e4d5c943a6fc3171d826cb2b041 SHA-1: a69335ce80975c0baf1766a9fa5ec72723ad2bf1 SHA-256: 445f8910f19f0559294301686fd427540c252f0896499650ce4be198da6c806c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://wirut.co.za/YmrXLWy8?keyword=key%20interview%20questions%20to%20ask%20a%20candidate PDF link annotation
    • https://rezepurobej.weebly.com/uploads/1/3/5/3/135327696/6294084.pdfIn PDF document text
    • https://fozuwopakinijur.weebly.com/uploads/1/3/4/6/134617915/8acb9d47d6ab903.pdfIn PDF document text
    • https://molapoji.weebly.com/uploads/1/3/4/0/134096941/joler-pulovakal.pdfIn PDF document text
    • https://ucknef-basket.fr/images/files/wivolawexedamepugepop.pdfIn PDF document text
    • http://lncxjzxxw.com/upload_fck/file/2022-2-26/20220226202132205408.pdfIn PDF document text
    • http://ags-sib.ru/ckfinder/userfiles/files/walufip.pdfIn PDF document text
    • https://vivantinvest.nl/userfiles/file/zujaxon.pdfIn PDF document text
    • http://www.chulapd.org/administrator/libraries/ckeditor/kcfinder/upload/files/wisufutetokokag.pdfIn PDF document text
    • http://chmer.yun2u.com/upload/files/zojomunuxegixawog.pdfIn PDF document text
    • https://nirejabepifu.weebly.com/uploads/1/3/4/2/134266024/c72e4da22e.pdfIn PDF document text
    • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/63cd1cdfd838ac6ce571ccdbbccd82a0/10273396951.pdfIn PDF document text
    • http://xuanfe.com/uploads/FCKeditor/file/14224324612.pdfIn PDF document text
    • https://jokesekarizav.weebly.com/uploads/1/3/1/4/131407558/d07ca506d6a.pdfIn PDF document text
    • https://fojomuku.weebly.com/uploads/1/3/4/4/134447263/e2c14eacb8.pdfIn PDF document text
    • http://gzxmbx.com/uploadfile/file/2022022506562373499.pdfIn PDF document text
    • https://beborojefep.weebly.com/uploads/1/3/0/7/130739591/56fddc134b9a3a7.pdfIn PDF document text
    • https://wibafodutaselo.weebly.com/uploads/1/3/1/3/131380847/wasejazemage.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B82 16092 bytes
SHA-256: 9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd
font_01_sfnt_off000120c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120C7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000138d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138D9 17936 bytes
SHA-256: 60837a838bf0002a38d48cd0dabc337b735ffa64b47d4f3a4282db7f47a23710
font_03_sfnt_off0001678c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1678C 10912 bytes
SHA-256: c921118c47d1fd05f6cff05030cf774b70554f45a965048676a5d18dff4536d6

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