Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb818b5f73d39111…

MALICIOUS

PDF

72.1 KB Created: 2022-04-04 14:51:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: f4d625946f50f44676294a20d4f61b4b SHA-1: 8bdc239f21b76c4ffb9dc39d12bd604bf9721c83 SHA-256: cb818b5f73d39111c3ea71a0d5b403d14fda41a5b505a5483ec1c36318510907
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://loheb.co.za/YmrXLWy8?keyword=pentair%20pool%20pump%20specs PDF link annotation
    • https://galesarenad.weebly.com/uploads/1/3/4/3/134380117/xuxexixedam.pdfIn PDF document text
    • https://tujowijide.weebly.com/uploads/1/3/0/9/130969571/sudire_divumugubiv_tipoki.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624688fde1f85---torav.pdfIn PDF document text
    • https://bosewumakujo.weebly.com/uploads/1/3/6/0/136036310/sizejuxo-milif.pdfIn PDF document text
    • https://zimavilagapiwe.weebly.com/uploads/1/3/2/7/132712623/3046590.pdfIn PDF document text
    • http://kozelsk-adm.ru/files/uploads/files/46053284743.pdfIn PDF document text
    • https://gozataxuwo.weebly.com/uploads/1/3/0/7/130740141/dd6e2cce60d7e8.pdfIn PDF document text
    • https://gedodigu.weebly.com/uploads/1/3/5/3/135312539/galipulifodagid.pdfIn PDF document text
    • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/a32a74534f49ba289994d9750f8cab7a/kurikunedulisotasuv.pdfIn PDF document text
    • https://tigoxugijiwubaz.weebly.com/uploads/1/3/4/3/134315710/101199d147a89.pdfIn PDF document text
    • https://vojelako.weebly.com/uploads/1/4/1/2/141259524/barawatiboxoz_fakoxeti_sirizim_worixopol.pdfIn PDF document text
    • http://myappartement.de/web/editor/files/nikarunorug.pdfIn PDF document text
    • https://xotikavetaj.weebly.com/uploads/1/3/4/8/134861849/ce045.pdfIn PDF document text
    • https://sudujosapo.weebly.com/uploads/1/3/4/5/134510416/a09ed6b.pdfIn PDF document text
    • https://vusubidasezojix.weebly.com/uploads/1/3/5/3/135399418/7847915.pdfIn PDF document text
    • https://gavebinakufir.weebly.com/uploads/1/3/2/3/132302735/9648294.pdfIn PDF document text
    • https://wevubajapema.weebly.com/uploads/1/3/5/9/135958203/1929415.pdfIn PDF document text
    • https://zodebosamu.weebly.com/uploads/1/3/4/4/134444592/32122c51.pdfIn PDF document text
    • https://foundlight.ca/home/foun6192/public_html/files/custom_files/file/64271624588.pdfIn PDF document text
    • https://todifafox.weebly.com/uploads/1/3/4/3/134329955/b6e227a.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_off0000b56e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b56e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b56e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB56E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cd85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD85 10636 bytes
SHA-256: 9f6beefbd2231321a91b787c752ac75e01db47d221a7712fc119684010a47986
font_02_sfnt_off0000e5dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DD 17292 bytes
SHA-256: f4eb6685bb5ec3d11734ebd5c16a798c08b9818e3b8d417162b3bf0bf03463c5