Malicious PDF — malware analysis report

Static analysis result for SHA-256 072e5b8d4ab0894d…

MALICIOUS

PDF

74.3 KB Created: 2021-01-26 07:07:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 1722fbddfc31ba7a52dad9db1670d4e5 SHA-1: 4ba7e4ffd935767e06a5f526f113cc89dd5b36b9 SHA-256: 072e5b8d4ab0894dd1f418c086d3609c296123b41bb3717c8e65ee5142c163d9
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 document contains numerous external URIs, including one pointing to 'maypoin.ru', suggesting it's part of a phishing or scam campaign. The presence of multiple disposable and link farm domains further supports this assessment.

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://maypoin.ru/123?utm_term=harbor+freight+sump+pumps+for+sale PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369165/normal_5fce760980761.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477137/normal_5ff098dda7f30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489838/normal_5fe875a08a362.pdfIn PDF document text
    • https://tavadubamik.weebly.com/uploads/1/3/4/4/134473349/aea45f1fe8d7b1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379837/normal_5ffc03ac69f23.pdfIn PDF document text
    • https://busununivid.weebly.com/uploads/1/3/4/7/134774072/a9a16e63b9f4ac2.pdfIn PDF document text
    • https://nulixosur.weebly.com/uploads/1/3/4/3/134311840/6281728.pdfIn PDF document text
    • https://jurefuzosapob.weebly.com/uploads/1/3/4/9/134901670/9054644.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fakuzilezozo.epizy.com/lidemoremuxak.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/astronomy_science_book.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/26723301481.pdfIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/bajrangi_bhaijaan_qawwali.pdfIn PDF document text
    • http://kitasiru.epizy.com/80772112754.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e55a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55A 5416 bytes
SHA-256: 990c7dc884f3030d9a963c27c4813ebc661156219d713642896f3a05ed3f1d96
font_01_sfnt_off0000f79b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF79B 10732 bytes
SHA-256: 7ad200d0dfeefdfb5ea7761f386b4e4d890efea9503d8a90cc8dab49460c5277

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