Malicious PDF — malware analysis report

Static analysis result for SHA-256 34d3d171cf54d325…

MALICIOUS

PDF

77.5 KB Created: 2021-02-21 20:36:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b21bfa04daf6cd6fe182e4d7c77b9229 SHA-1: 431266942572b1a01cc82a01c70078d5af3ef5a3 SHA-256: 34d3d171cf54d3257d447d806d05e8a26872ff956bf9319d7902d34c8bf740e7
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to disposable domains, suggesting it functions as a link farm designed to redirect users to potentially harmful websites. The presence of external URIs and link farm heuristics strongly supports a phishing or malware distribution attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 https://jottigo.ru/strik?utm_term=planet+eclipse+etha+2 PDF link annotation
    • http://nosinoski.shop/exogenous_ketones_before_bed02f6x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459467/normal_6002a9506a033.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369508/normal_5ff557f22b7e5.pdfIn PDF document text
    • https://diwodineguxep.weebly.com/uploads/1/3/4/3/134305573/1135148.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483349/normal_5fec825a77989.pdfIn PDF document text
    • http://kapusta.pro/the_green_exorcist_release_datew3wbs.pdfIn PDF document text
    • https://wegonugu.weebly.com/uploads/1/3/4/0/134040733/wajivexowurogeb-dunupata-ropaxomikej.pdfIn PDF document text
    • https://kepubaxolawava.weebly.com/uploads/1/3/4/7/134703856/bolijoz_dizopetafokasos_jakijejud_sofuvobugajibi.pdfIn PDF document text
    • http://de-bewertung-id-q2e5t23.top/bodyguard_video_pagalworld0c9h1.pdfIn PDF document text
    • http://swast-group.website/13153165687whkfh.pdfIn PDF document text
    • http://bestsaleshopin.xyz/xejagepesatixajexirwey7q.pdfIn PDF document text
    • http://indital.fun/gipenasetuza8dybq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478378/normal_602a45f2abe83.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451555/normal_5ff90d4ef1d27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383689/normal_602e80c94d848.pdfIn PDF document text
    • http://islta.fun/470092360239mbyg.pdfIn PDF document text
    • https://telixezudaridif.weebly.com/uploads/1/3/0/7/130775339/filupikiw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482403/normal_6003f1373357d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482002/normal_603176c06aa85.pdfIn PDF document text
    • http://g2am2e.xyz/110310520cvylj.pdfIn PDF document text
    • https://ditexoka.weebly.com/uploads/1/3/5/3/135398742/8951a2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BC 4736 bytes
SHA-256: da0900f1c1b9f599367f5c9bbe072a4da493d2d180c952d9c0c43a42a6fffbfe
font_01_sfnt_off0000f4bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4BD 11000 bytes
SHA-256: 7799652d1b45dfc217c1a34181c40372ea741324500bdef2a2d81c0cd536bda4
font_02_sfnt_off00011a8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A8A 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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