Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d07a50a1205ada4…

MALICIOUS

PDF

75.7 KB Created: 2021-02-28 06:09:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 840147a6671cc6684980aad8aadc86e9 SHA-1: 2c9608975913a3702c3d3e3c2927d6a55ff1c690 SHA-256: 7d07a50a1205ada4c01c3a298daf36dd7f1287a2b0994bdec8b055500402c27a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample is identified as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. It contains numerous external URLs, many hosted on disposable domains, indicating a link farm or phishing lure. The PDF structure and embedded content suggest it is designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/aws?utm_term=determine+the+reactions+at+a+and+b+for+the+beam+loaded+as+shown PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459036/normal_5ffe84c6422bc.pdfIn PDF document text
    • http://bisibometixo.mywebcommunity.org/duzikisa.pdfIn PDF document text
    • http://sifamukuji.iblogger.org/material_safety_data_sheet_hcl_msds.pdfIn PDF document text
    • http://roxedizusugu.mywebcommunity.org/85783794538.pdfIn PDF document text
    • http://bagesopabiwub.scienceontheweb.net/how_to_find_panasonic_tv_code.pdfIn PDF document text
    • https://cdn.sqhk.co/sobupepokor/dhahfel/mx_player_free_download_uptodown.pdfIn PDF document text
    • http://tevfikyuce.xyz/vebetoreduvomekowibigqzx5.pdfIn PDF document text
    • http://ridegibulas.22web.org/star_wars_rpg_races_and_classes.pdfIn PDF document text
    • http://usersonlineguardingsettings.site/73433474688ml8r0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371783/normal_5fed10d3ac4f1.pdfIn PDF document text
    • http://detonic-italy.website/how_to_change_tension_on_brother_pe800xkcsl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462352/normal_5fff4cac0b27b.pdfIn PDF document text
    • http://usesalon.xyz/kuroxolirogonukujexor4k5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367294/normal_6022245f1b9e8.pdfIn PDF document text
    • http://znasila.ru/81620518975tt47o.pdfIn PDF document text
    • http://8gusevshop.website/160544094346qyu7.pdfIn PDF document text
    • http://prosucre.pro/50649493813m6bd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fozujapajus.epizy.com/73876939154.pdfIn PDF document text
    • http://rebobimakefeli.epizy.com/73261222864.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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD353 5492 bytes
SHA-256: fcffa9ca551a329bfd72f4ac03e343433b0ed3d3429af01ab458c1010911f628
font_01_sfnt_off0000e5e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E8 10964 bytes
SHA-256: fab20cd3ffe9b2ca17cd8a5c36d51460a1331f59809b1f0907094dd6f3158ff6
font_02_sfnt_off00010b4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B4F 16152 bytes
SHA-256: 584780b83d2b471c60ad56403b6c1b1ffad8e928be7c9b74e809276eb4de34d4

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