Malicious PDF — malware analysis report

Static analysis result for SHA-256 6243fb121247b33b…

MALICIOUS

PDF

74.4 KB Created: 2022-05-04 08:20:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: a0579418f9f93f2f6bc962443b930d8e SHA-1: 099d52ba33f4971c8a049adfc8732297f6cf26e5 SHA-256: 6243fb121247b33b877b2d888bfc3026368bc5565b010ec6410667a9014c0420
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://mifuj.co.za/YmrXLWy8?keyword=ordinal%20numbers%20english%20worksheets%20practice%20pdf%20free%20online PDF link annotation
    • https://unesco-mediain.cz/fckfiles/file/birurudubugo.pdfIn PDF document text
    • http://afgesproken.nl/kcfinder/upload/files/xujulaxujetujogom.pdfIn PDF document text
    • https://www.vconsole.com/ckfinder/files/pewizavufonabamamaseji.pdfIn PDF document text
    • https://vejurafalez.weebly.com/uploads/1/4/1/5/141518060/9867657.pdfIn PDF document text
    • https://vibofizetukoz.weebly.com/uploads/1/3/0/9/130969748/febal-xudoguxuf-nawamatavun.pdfIn PDF document text
    • http://tznjl.com/userfiles/files/memegupek.pdfIn PDF document text
    • https://pogipusuzifu.weebly.com/uploads/1/3/4/8/134869227/5000776.pdfIn PDF document text
    • https://lutaxebibutemun.weebly.com/uploads/1/3/1/3/131380730/34d915bf2c.pdfIn PDF document text
    • https://www.fukuyama-ramen.com/editors/kcfinder/upload/files/kubowigelereseludetapi.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1621ff4d815f6d---73039621459.pdfIn PDF document text
    • http://artstudiodesign.it/userfiles/files/67053626423.pdfIn PDF document text
    • https://sagolofuba.weebly.com/uploads/1/3/4/8/134873879/413639b.pdfIn PDF document text
    • http://groupementpecheduloir.com/ckfinder/userfiles/files/gipar.pdfIn PDF document text
    • https://dumunevebule.weebly.com/uploads/1/3/0/8/130874169/58e1de08cf4.pdfIn PDF document text
    • https://gusotefatimadi.weebly.com/uploads/1/3/1/6/131636747/jolobekomimaxugo.pdfIn PDF document text
    • https://mimzyonline.com/userfiles/file/98020146505.pdfIn PDF document text
    • https://www.icfost.org/public/kcfinder/upload/files/91973906821.pdfIn PDF document text
    • https://kusigalodedi.weebly.com/uploads/1/3/5/9/135965864/6538777.pdfIn PDF document text
    • https://wimopoxidiki.weebly.com/uploads/1/3/5/3/135313965/1a374d6d.pdfIn PDF document text
    • https://bosowumajozidu.weebly.com/uploads/1/3/0/7/130740465/61196e0bdee.pdfIn PDF document text
    • https://tidatulo.weebly.com/uploads/1/3/2/8/132815220/botaxadid.pdfIn PDF document text
    • https://farunigi.weebly.com/uploads/1/3/4/7/134716297/gabovujodup-pepisiki-zonaxekarorusi-zopuzalelimawim.pdfIn PDF document text
    • https://vajdasaraegyesulet.hu/kcfinder/upload/files/77227741788.pdfIn PDF document text
    • http://textolinguisticsolutions.com/upload/editor/file/99613544714.pdfIn PDF document text
    • https://mivewuwadomabat.weebly.com/uploads/1/3/1/6/131606259/kezuzez.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_off0000ba84.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ba84.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA84 16724 bytes
SHA-256: 656dc500a3a5eee26c6ef1e80faa9690987bd46d7df333eb2bc1f1777ff74249
font_01_sfnt_off0000e604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE604 11508 bytes
SHA-256: b01be32cff382044cb18ea0df840c2507bdf96a89b0badec205e74357fbd80d1
font_02_sfnt_off000100bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1