Malicious PDF — malware analysis report

Static analysis result for SHA-256 941adc34fca68de3…

MALICIOUS

PDF

73.0 KB Created: 2021-09-26 19:58:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 1381566f9be4b4b8cbf22e7bb3034baa SHA-1: d17c8717639be9ca136bf1ed6eaf4ce187da6296 SHA-256: 941adc34fca68de3814ec14c9be1e59e79fcf680349f744c059be4bac3e0a4d2
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ketchas.ru/uplcv?utm_term=reset+code+for+android PDF link annotation
    • https://mediaget.ru/userfiles/files/32158785965.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/639abe1527771e9c20df798122f0f104/92112113432.pdfIn PDF document text
    • http://precisao.org/files/files/rexobugitomikusufal.pdfIn PDF document text
    • https://bocion.com/ckfinder/userfiles/files/76142153604.pdfIn PDF document text
    • http://chinawin-consult.com/userfiles/14135220582.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/16136c5fed65e2---vapumoguzigijewonoto.pdfIn PDF document text
    • https://aakritidigitals.com/userfiles/files/64670698196.pdfIn PDF document text
    • https://khmernative-rice.com/userfiles/file/76534665157.pdfIn PDF document text
    • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613548f0101cc---vonukopanugolenivimar.pdfIn PDF document text
    • https://repetitorebi.ge/userfiles/files/68700158535.pdfIn PDF document text
    • http://onishi-kyosendo.jp/archive/51860972954.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614d15234bf1c---26438550273.pdfIn PDF document text
    • http://rc-mst.com/mst/_upload/files/85219167559.pdfIn PDF document text
    • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/0fa5545931ee5e0c1655d37a6daa1bde/runizirumirafut.pdfIn PDF document text
    • https://www.rosebankprimary.co.za/inc/ckfinder/userfiles/files/zajinorotusuv.pdfIn PDF document text
    • http://cnpair.com/userfiles/file/90760936303.pdfIn PDF document text
    • http://guowangcable.com/d/files/juraxivos.pdfIn PDF document text
    • http://exosportsante.fr/ckfinder/userfiles/files/11133099152.pdfIn PDF document text
    • http://www.humillacionyestrella.org/ckfinder/userfiles/files/lopawumetom.pdfIn PDF document text
    • https://ph2020.org/ckfinder/userfiles/files/jokukikap.pdfIn PDF document text
    • https://profitaler.com/UserFiles/file/82590086950.pdfIn PDF document text
    • https://khyatiinfotech.biz/ckfinder/userfiles/files/68351207597.pdfIn PDF document text
    • http://www.giuseppe.ru/ckfinder/userfiles/files/nonuged.pdfIn PDF document text
    • http://bananamusic.tw/uploads/files/202109151007173800.pdfIn PDF document text
    • http://www.77ice.com/upload/files/gimedoxixe.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 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_off0000b8db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8DB 17708 bytes
SHA-256: 34a28e964b19c341f2088f2aa23876e3a96c515a812a534fa54fcdbd810b1cd4
font_01_sfnt_off0000e66f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fe86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE86 10468 bytes
SHA-256: 8d9856e9e0e2f320e702fdb26ed58356fa3e57ab59fc61b40cc5e3bf2cba613f