Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd733b48e04a4a8e…

MALICIOUS

PDF

94.3 KB Created: 2021-10-11 18:51:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: c0c658df998e61f79f32b4adfbb5e6f7 SHA-1: 13490b0e9cade5e3186dc33befead6a05499299d SHA-256: cd733b48e04a4a8e6534a580ce04fcda63af03030c0f2baf2311aa3bf8dddac0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153be705a63e---87512525369.pdf In PDF document text
    • http://didopack.com/files/damiroxexuvodenavolida.pdfIn PDF document text
    • http://studiotecnicostradi.eu/userfiles/files/razizeromuxu.pdfIn PDF document text
    • http://imcborivali.org/userfiles/file/susomuwuvevob.pdfIn PDF document text
    • http://bamor.org/userfiles/file/xizimikiguzonima.pdfIn PDF document text
    • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d311fe327c---67314272579.pdfIn PDF document text
    • https://khmernative-rice.com/userfiles/file/mirodosovedosopo.pdfIn PDF document text
    • http://aryajob.com/user_upload/file/fubowadagolilifavabeni.pdfIn PDF document text
    • http://e-district.org/userfiles/file/38304879294.pdfIn PDF document text
    • http://cokhivietuc.webthoidai.com/img-vietuc/files/83364063387.pdfIn PDF document text
    • http://abyss.sk/userfiles/file/pidenorenavizewi.pdfIn PDF document text
    • http://csc-021.com/userfiles/file/20210909193016_rh85nm.pdfIn PDF document text
    • http://mfcpavpos.ru/file/damobasutenus.pdfIn PDF document text
    • https://sweetburden.com/upload/users/files/fepadozoloro.pdfIn PDF document text
    • http://npcbalkan.net/ckeditor/ckfinder/userfiles/files/37029616596.pdfIn PDF document text
    • https://akconta.com/uploads/files/gawevelekamaxefofisex.pdfIn PDF document text
    • https://qatarsecurityservices.com/public_html/userfiles/file/bugejupesigelox.pdfIn PDF document text
    • http://ihdbd.org/upload/files/jogepobikabewosi.pdfIn PDF document text
    • http://atrsara.ir/resource/files/jizutorepenib.pdfIn PDF document text
    • https://getracemirates.com/userfiles/files/89836159360.pdfIn PDF document text
    • https://mimpishio2.com/contents/files/11434924181.pdfIn PDF document text
    • https://xn--p3t29jo1ed4o4xw.tw/upload/files/49046462340.pdfIn PDF document text
    • http://nhahanghienminh68.com/upload/files/73726351888.pdfIn PDF document text
    • https://edu-mate.kr/_UploadFile/Images/file/gekidoxose.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/896FEnmJZlk/uplcv?utm_term=how+old+was+melissa+gilbert+when+little+house+on+the+prairie+startedPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10302 20812 bytes
SHA-256: 188593b74ce74551ef3374900895669e539b1522bade308039184e86695c23a1
font_01_sfnt_off00013913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13913 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001512a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1512A 11156 bytes
SHA-256: f5122bc88592dec6c9221d9d9c6b503e3d1224cc0d0035e2e2d3f506bf3ba0c4

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