Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f320eb6fbc8275c…

MALICIOUS

PDF

74.8 KB Created: 2022-04-16 06:34:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 79187d51cb1dd18ae2c1c67555c5ae87 SHA-1: 7181b6f8b0714a6a56a7f97e85ea845ca8740ef7 SHA-256: 5f320eb6fbc8275cfe5f88ebdf80cfad864dd2ed7f46928ec5f3425fdfe8bc78
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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 http://tamezou.com/upload/ckfinder/files/guwebibemoxazopemufa.pdf In PDF document text
    • https://riwubabefos.weebly.com/uploads/1/3/4/5/134591520/gupikulu-sixelitado-wodazaso.pdfIn PDF document text
    • https://lacgl.org/upload/editor/file/93479801203.pdfIn PDF document text
    • http://armoire-atex.com/js/kcfinder/upload/files/tutux.pdfIn PDF document text
    • https://hoangmailogistics.com/asset/site/files/32354499655.pdfIn PDF document text
    • https://lirodenagegoket.weebly.com/uploads/1/3/1/4/131437677/826300.pdfIn PDF document text
    • http://ceu-jgh.org/kcfinder/upload/files/54484286084.pdfIn PDF document text
    • http://www.jo-hubert.fr/upload/files/sakaxulufeto.pdfIn PDF document text
    • https://vojutodebol.weebly.com/uploads/1/3/4/0/134096580/5636371.pdfIn PDF document text
    • https://middletonchambers.com/ckfinder/userfiles/files/rejininezoket.pdfIn PDF document text
    • http://teacherandtraining.com/coj_u/KK/userfiles/files/bavavezala.pdfIn PDF document text
    • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/4df93b9bdf39576346e3f16298fc3636/jadazexevureposive.pdfIn PDF document text
    • https://piphoto.tw/uploads/files/202202141013529418.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161fd0cdea2525---74497091830.pdfIn PDF document text
    • http://trips-in.com/ckupload/files/28772960458.pdfIn PDF document text
    • https://aurorabersinar2.com/contents/files/41762346648.pdfIn PDF document text
    • https://lalafifutarab.weebly.com/uploads/1/3/4/4/134444863/3213998.pdfIn PDF document text
    • http://globalcentral.net/contentupload/fckeditorUploads/organization_/file/58554334474.pdfIn PDF document text
    • https://ski-valloire.com/ckfinder/userfiles/files/tazobominirizare.pdfIn PDF document text
    • https://dejuxowiku.weebly.com/uploads/1/3/0/7/130738850/24b63beb75e.pdfIn PDF document text
    • https://loheb.co.za/YmrXLWy8?keyword=what%20to%20do%20if%20your%20water%20heater%20is%20not%20workingPDF 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_off0000c0b8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c0b8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0B8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d8ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CA 16656 bytes
SHA-256: 1f08de5ddfeb95eb1eeea1a4729d7c59c31a223939957758dba52da161415354
font_02_sfnt_off00010435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10435 10972 bytes
SHA-256: 8449268bc8336c9bec658d3e6ac8da945d342bc7e221506f7c7997463631c780