Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b44ec94d473094…

MALICIOUS

PDF

71.7 KB Created: 2021-11-28 01:53:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 5ac12b4799e5fc2ab5c3c6b086f4b00f SHA-1: 51c72bbf1cdb8800b54967ee1c3b8dd939f92d13 SHA-256: 72b44ec94d4730949adcca9829e060acff0ea1e60aa4b5637760ddeda150e59f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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 http://smolensk-bakaleya.ru/userfiles/file/japebuxo.pdf In PDF document text
    • http://drapa-technika.cz/UserFiles/File/jimik.pdfIn PDF document text
    • http://automag.pl/userfiles/file/10905643718.pdfIn PDF document text
    • http://seoaudytor.pl/userfiles/file/zixamuv.pdfIn PDF document text
    • https://nppgursaraijhansi.in/ckfinder/userfiles/files/93622895063.pdfIn PDF document text
    • http://risorsaterra.it/userfiles/files/xapovujisasedagijavuf.pdfIn PDF document text
    • https://equimat-cheval.fr/file/24379410826.pdfIn PDF document text
    • http://yasaitogo.com/uploads/files/nasez.pdfIn PDF document text
    • https://www.igescanada.com/ckfinder/userfiles/files/najal.pdfIn PDF document text
    • https://betenrealestate.com/sites/default/files/file/80413726041.pdfIn PDF document text
    • http://balalajka.nu/media/vejifo.pdfIn PDF document text
    • https://norservis.com/files/files/97844102911.pdfIn PDF document text
    • http://montpellier-businessplan.eu/mbp/upload/images/images/upload/ckfinder/biwuwezelixa.pdfIn PDF document text
    • http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/72695611387.pdfIn PDF document text
    • https://emtracing.net/userfiles/file/xinupedadazokoba.pdfIn PDF document text
    • https://arkadas.yuzuktr.com/eskortarama.com/resimler/file/86188520157.pdfIn PDF document text
    • https://ryokanclub.com/FileData/ckfinder/files/20211111_0D6F75D83F846FC3.pdfIn PDF document text
    • https://tomaszbizon.tomaszbizon.pl/web/uploads/files/dibefimutavo.pdfIn PDF document text
    • http://kleinschaden.expert/userfiles/file/bagejuberuvolima.pdfIn PDF document text
    • https://big-affaires.com/img/pics/files/denizokufotevobo.pdfIn PDF document text
    • https://cnprint.ro/userfiles/file/64246949408.pdfIn PDF document text
    • http://duancanhotot.com/upload/files/naduv.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/xPAns0MRe5M/uplcv?utm_term=downloadgameps3.com+ou+vn-sharing.nePDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEC5 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000c569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC569 11388 bytes
SHA-256: 54f14df0c59ff15cc8b89ec793984ff0ba6ca99e87bcc1fb733e90620f3eac16
font_02_sfnt_off0000dff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF0 18688 bytes
SHA-256: de06362227ee7e9ee08287cf8c782b83c4b0259291e5b94dd6a7f64185d756db

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