Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b0a4b6976e2cfc6…

MALICIOUS

PDF

49.0 KB Created: 2021-02-24 19:44:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ec1d28709dccc658f50b7910b2b0441b SHA-1: fbebafbe05952c3672d1b1288cb25252cb6a5e2c SHA-256: 0b0a4b6976e2cfc63d993f1652f5f6ca47f72d0e9693016e8c7756149064ad94
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by multiple heuristics, including a critical finding for linking to known malicious redirector infrastructure and a large number of external PDF links. The ML classifier also flagged it with high confidence. The document body is heavily obfuscated, but the presence of numerous links to disposable hosting and potentially malicious domains suggests a phishing or SEO manipulation campaign. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7155

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://yafferge.ru/award?keyword=waste+king+2600+installation+video In PDF document text
    • https://cdn.sqhk.co/pobumepova/gQnhcgd/kungfu_action_movies_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/jenetuwuda/VMgdjcC/vokodifulawimovi.pdfIn PDF document text
    • https://cdn.sqhk.co/forinabam/aPY9Rja/do_not_touch_in_braille.pdfIn PDF document text
    • http://warixedivukinat.mygamesonline.org/42326984361.pdfIn PDF document text
    • https://cdn.sqhk.co/bokupajokim/dnrBhjx/7_wonders_of_the_world_2019_wikipedia.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/serato_dj_lite_1.3_3_macos_installer.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/jjfic10/kit_viet_nam_dream_league_soccer_2019_tottenham.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/5_languages_of_love_gary_chapman_test.pdfIn PDF document text
    • http://tupaxeguna.scienceontheweb.net/sisowonu.pdfIn PDF document text
    • https://cdn.sqhk.co/juzurupivepo/eihiaDg/lalarutipedev.pdfIn PDF document text
    • http://xexapitanegis.getenjoyment.net/5947194280.pdfIn PDF document text
    • https://cdn.sqhk.co/sogefuluf/hi6crgd/knock_out_means_in_spanish.pdfIn PDF document text
    • https://cdn.sqhk.co/pigexebobe/ahdsicP/faxadenufogatipozakalusiv.pdfIn PDF document text
    • https://vetigepar.weebly.com/uploads/1/3/5/9/135989985/b933e0011e.pdfIn PDF document text
    • https://fumewalifo.weebly.com/uploads/1/3/4/8/134884483/8d9fe064b11d6.pdfIn PDF document text
    • https://dunijolojuk.weebly.com/uploads/1/3/1/4/131437931/digurepup.pdfIn PDF document text
    • https://xiwupegolowiba.weebly.com/uploads/1/3/1/6/131606046/5947582.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/1793567087.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/gerd_guidelines_pediatrics.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/voxopaviwinodo.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/lodepetugat.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/android_10_note_8_beta.pdfIn PDF document text

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