Malicious PDF — malware analysis report

Static analysis result for SHA-256 44523baf2e4e2028…

MALICIOUS

PDF

80.8 KB Created: 2021-11-12 12:45:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: d057501ea9343522241a3a13a129860a SHA-1: 04111b409cfb096de1439052b6fc0b7e5736552f SHA-256: 44523baf2e4e2028907582a47c59c384b87b1111ec8e3bce8eeb7511f8a4e1a5
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to disposable domains and are part of a link farm, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to lead users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://helices-evra.com/userfiles/file/kujepudapebupera.pdf In PDF document text
    • http://cmsdoc.blum-group.de/data/cmsdoc/userfiles/file/97359794104.pdfIn PDF document text
    • http://satisfytech.com/ck/upload/files/bejajuwojabonutogidev.pdfIn PDF document text
    • http://taxfreepoint.com/file/58629327163.pdfIn PDF document text
    • https://lrsinc.co/userfiles/file/mitotemide.pdfIn PDF document text
    • http://sgrappresentanze.eu/userfiles/files/kujotido.pdfIn PDF document text
    • https://pfhotel.gr/ckfinder/userfiles/files/witonofususajojozesolom.pdfIn PDF document text
    • https://takarasushimn.com/userfiles/files/wafemadowipuvuzasumixu.pdfIn PDF document text
    • http://mariamozharova.ru/uploads/files/refitaduzudajoturifi.pdfIn PDF document text
    • http://cieplej.pl/imgturysta/file/safekejerugaditeni.pdfIn PDF document text
    • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/35188b1e4ce452efae8e864d0f7c009f/15750087586.pdfIn PDF document text
    • http://nazycakes.com/userfiles/file/51140581308.pdfIn PDF document text
    • http://fructusartis.com/i/File/gesijakakodenidenoki.pdfIn PDF document text
    • https://solener.info/ckfinder/userfiles/files/musisafezev.pdfIn PDF document text
    • http://aldobini.it/userfiles/files/wanusomozusupi.pdfIn PDF document text
    • http://kondicionery-shodnya.ru/upload_picture/file/binomegifisakuselolaz.pdfIn PDF document text
    • http://ahzgbh.news-read.com/upload/files/deripivamemagiwefivugofeb.pdfIn PDF document text
    • http://www.its-dph.cz/admin/fckeditor/editor/userfiles/file/kujetogonuveruf.pdfIn PDF document text
    • https://badrivishal.com/media/40495359373.pdfIn PDF document text
    • https://jagominum.com/contents/files/34425938771.pdfIn PDF document text
    • https://exhibitproplus.epponline.com/mentorfinancial/page_images/file/70921671991.pdfIn PDF document text
    • http://micruts.org/userfiles/file/39688849499.pdfIn PDF document text
    • http://profiklub.sanswiss.cz/files/file/35037566858.pdfIn PDF document text
    • http://kino-cosmik.ru/sadm_files/89421128992.pdfIn PDF document text
    • http://symbolfoods.com/files/file///26232358599.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/oscUj7J0Gjw/uplcv?utm_term=how+to+draw+a+rose+realisticPDF 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_off0000d72d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD72D 18212 bytes
SHA-256: 992c5372c065f55c124830eef19e6ccc163e34e696393e463c4a54f86401c3ad
font_01_sfnt_off0001069c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1069C 10336 bytes
SHA-256: 4ce28cf0ee9228daecd9b331318dcbd71a1b72db2ee83783831c2c9f7bf8ba06
font_02_sfnt_off00011e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E11 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef

Open this report in the interactive analyzer, or submit your own file for analysis.