Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbecab532eee5eb5…

MALICIOUS

PDF

84.1 KB Created: 2022-04-16 07:38:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 90f2e743bc20d30b5b682c9338d91578 SHA-1: 9a9d9a59507fa176b72c5f1e640084af2e2fdb11 SHA-256: cbecab532eee5eb5544e52b6f2eb9bcc622001dcac6490b94ddd05094cc0787b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://condicionamentofisico.com/arquivos/file/vokubefotib.pdf In PDF document text
    • https://weboonline.com/ckfinder/userfiles/files/18274873574.pdfIn PDF document text
    • https://wimetuzozafod.weebly.com/uploads/1/3/4/6/134604259/8263009.pdfIn PDF document text
    • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/85532d46d376.pdfIn PDF document text
    • http://www.farmaciapenil.es/userfiles/files/nunijamubabovivulirenawuj.pdfIn PDF document text
    • http://systempro.kr/userData/board/file/6853218058.pdfIn PDF document text
    • https://www.retailexpert.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/dilupulu.pdfIn PDF document text
    • https://xuvidomukak.weebly.com/uploads/1/3/7/5/137503681/xolasinodixi.pdfIn PDF document text
    • https://kupolagaxex.weebly.com/uploads/1/3/0/9/130969851/zawanejuj.pdfIn PDF document text
    • https://gakifesobilale.weebly.com/uploads/1/3/4/5/134512030/dagetatedadodu_tarixifafuru_lokazededu.pdfIn PDF document text
    • https://pokenazifitu.weebly.com/uploads/1/4/1/4/141441827/3590867.pdfIn PDF document text
    • http://alrabbancapital.com/file/files/16659781705.pdfIn PDF document text
    • http://tangneylaw.com/admin/images/file/fiwumotugugukotu.pdfIn PDF document text
    • https://xovawezovikax.weebly.com/uploads/1/3/0/9/130969403/dotavefef.pdfIn PDF document text
    • https://zowomotoridaxa.weebly.com/uploads/1/3/1/4/131438570/xujobej.pdfIn PDF document text
    • https://famoresarit.weebly.com/uploads/1/3/4/6/134680052/wotejukujed.pdfIn PDF document text
    • http://sirindhorn.net/upload/File/bifiwetewapijujarawuma.pdfIn PDF document text
    • https://favigexa.weebly.com/uploads/1/3/0/7/130738696/2701003.pdfIn PDF document text
    • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/94c3cd2d807955e44216eeccbd5bc0be/laxuniruvisamob.pdfIn PDF document text
    • https://padokerasuwo.weebly.com/uploads/1/3/5/3/135319223/wetuz-zipapujakot-jafapif-xomifesa.pdfIn PDF document text
    • https://lajafovomulu.weebly.com/uploads/1/4/1/3/141396071/851aab62bf2.pdfIn PDF document text
    • https://cafij.co.za/YmrXLWy8?keyword=tutorial%20blender%202.8%20espa%C3%B1ol%20pdfPDF 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 extracted file (font_00_sfnt_off0000c77a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c77a.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c77a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC77A 18652 bytes
SHA-256: ab3599e82ddc55a4d9a0be694352ca482e0dd4461afc34429b9450a52edff8ac
font_01_sfnt_off0000f755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF755 11292 bytes
SHA-256: 5f6a0830b5163145402f1fe0fd8eb9a498ffe15493aa868dd399c7f67c563379
font_02_sfnt_off0001118e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1118E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off0001299f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1299F 16312 bytes
SHA-256: 7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae