Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61f68b202637fd9…

MALICIOUS

PDF

92.5 KB Created: 2022-04-18 22:59:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: df631abfb67b2629afe7c89b63d029e6 SHA-1: 4280c1da6aaefef304fc7fc05101e30e3fb3b975 SHA-256: b61f68b202637fd9705f4b3f58e3fe882a6396af5405bea7d8da23dc087832a8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://wisufomerimugil.weebly.com/uploads/1/3/4/0/134016782/siritorijixojewe.pdf In PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/162344b444487f---87938304691.pdfIn PDF document text
    • http://gabortech.com/admin/file/beligabodinulelozudezirak.pdfIn PDF document text
    • http://vikingpaint.com/user_file/file/pulupesejizatejagolizas.pdfIn PDF document text
    • http://ahjygjg.com/upload_fck/file/2022-3-19/20220319115828540141.pdfIn PDF document text
    • http://viettruss.com/upload/file/75136922601.pdfIn PDF document text
    • https://fopimakalegej.weebly.com/uploads/1/3/0/7/130738542/53b05a0254.pdfIn PDF document text
    • https://topagagi.weebly.com/uploads/1/3/4/3/134337746/leratorumonel.pdfIn PDF document text
    • https://proektasis.gr/admin/spaw2/uploads/files/37122728984.pdfIn PDF document text
    • https://sawobefuridavo.weebly.com/uploads/1/3/4/8/134895752/jenun.pdfIn PDF document text
    • http://www.temaricerca.com/entry2013new/admindia/ckfinder/userfiles/files/82472348001.pdfIn PDF document text
    • https://montpellier-business-plan.com/mbp/upload/images/images/upload/ckfinder/10840832949.pdfIn PDF document text
    • http://slstudio.it/userfiles/files/xumotaxilifefajuxova.pdfIn PDF document text
    • https://bedapidipofawif.weebly.com/uploads/1/3/2/7/132711979/1213403.pdfIn PDF document text
    • http://xn--h1aaebajlcgx.xn--p1ai/sadm_files/90563457201.pdfIn PDF document text
    • http://apgicl.com/public/files/assets/ckeditor/kcfinder/upload/files/90068079631.pdfIn PDF document text
    • http://liqaa-lb.com/files/userfiles/files/suwaxusenanuzi.pdfIn PDF document text
    • https://wovebisaji.weebly.com/uploads/1/3/4/6/134687394/8123340.pdfIn PDF document text
    • https://lazav.co.za/YmrXLWy8?keyword=dunkin%20donuts%20frozen%20coffee%20calorie%20countPDF 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_off00010138.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00010138.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10138 10724 bytes
SHA-256: 78f8dbb6e9097378130213fdd8f0f3953918ad14f8db12ebaac0942219ecd4d5
font_01_sfnt_off00011a09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A09 18292 bytes
SHA-256: a59e4a7ddec7e315c564c1f49ed236d3314f556e2c96366c70866e224415659d
font_02_sfnt_off00014a07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A07 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1