Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0cfa1d704c29477…

MALICIOUS

PDF

98.1 KB Created: 2022-04-04 14:45:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: f622e4d2a66a99c052cb4e777ad8317f SHA-1: 6b4e889df60a16c9cb90ce09a8c0afecbb8cc906 SHA-256: f0cfa1d704c29477cf716c0ea213479d4816be7895773e95633b2a41f95b7f60
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://laserhkt.com/admin/uploadfiles/file/97963121618.pdf In PDF document text
    • https://jikezukirex.weebly.com/uploads/1/3/1/3/131383594/2610943.pdfIn PDF document text
    • https://deselutinewim.weebly.com/uploads/1/4/1/2/141255825/dovopedutibodo.pdfIn PDF document text
    • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/45d19c42ec3877f5631128d68751db31/dejumulidezaxepatana.pdfIn PDF document text
    • https://tadomowiwelam.weebly.com/uploads/1/3/4/7/134744739/zixisab.pdfIn PDF document text
    • http://machulski.com/public/file/felijuladugirisiwag.pdfIn PDF document text
    • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/kaditepojobematabamol.pdfIn PDF document text
    • https://ponukikoruxa.weebly.com/uploads/1/3/4/3/134343798/sudegazapa_mijumevixa.pdfIn PDF document text
    • https://suruburi.net/mm/file/daxuwuzilowita.pdfIn PDF document text
    • https://zuwexonoporij.weebly.com/uploads/1/3/5/3/135317719/wolepaselobapaful.pdfIn PDF document text
    • https://xapotitiguwux.weebly.com/uploads/1/3/4/6/134668809/4011828.pdfIn PDF document text
    • https://revogofoti.weebly.com/uploads/1/3/3/9/133999152/4908401.pdfIn PDF document text
    • https://mokegeninu.weebly.com/uploads/1/3/4/0/134017711/neramu.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1622426b547aaa---nosojat.pdfIn PDF document text
    • https://zajolapa.weebly.com/uploads/1/3/0/7/130776493/235934.pdfIn PDF document text
    • https://gulecbakliyat.com/panel/kcfinder/files/70080650121.pdfIn PDF document text
    • http://filippodelvita.com/demo/userfiles/file/41778580907.pdfIn PDF document text
    • https://bifukumuvu.weebly.com/uploads/1/3/5/3/135347201/328d6a713d501.pdfIn PDF document text
    • https://raxokada.weebly.com/uploads/1/3/1/4/131409035/3007a24a75f7.pdfIn PDF document text
    • https://kalendarz.probik.pl/fckeditor/userfiles/file/winunurejisuwulamidit.pdfIn PDF document text
    • https://gonubogebedop.weebly.com/uploads/1/3/4/8/134886664/mupozisuzagumu.pdfIn PDF document text
    • https://yubit.co.za/YmrXLWy8?keyword=medios%20de%20comunicaci%C3%B3n%20que%20utilizamos%20actualmentePDF 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_off00011629.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00011629.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11629 19260 bytes
SHA-256: 60a1254851f30fc2af764e9ae5416c4e1e99e684a19c2a2d0e326d4fd7a5657a
font_01_sfnt_off0001474f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1474F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00015f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F66 10868 bytes
SHA-256: 1f0883fc278211b9603d44010ddb8005b1d675aea2b531559d543559bfcfe274