Malicious PDF — malware analysis report

Static analysis result for SHA-256 a229c4920f469c75…

MALICIOUS

PDF

84.2 KB Created: 2021-03-13 23:06:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c2550767848b8de5b9766912b3f4a562 SHA-1: 75224e44ce5df0e8943bcd43c25c8ca073738f93 SHA-256: a229c4920f469c7524c076b00e54ac51f0f62cd655d93eb1af93cefa9f6ebd89
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. It contains numerous embedded URLs, many pointing to disposable hosting or link farms, suggesting a phishing or redirection scheme. The presence of external URIs and the overall structure strongly indicate an attempt to lure users to malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://soxebez.ru/award?keyword=fitch+symbolic+logic+pdf PDF link annotation
    • https://cdn.sqhk.co/pugepavofu/UvTPibQ/how_many_different_color_road_signs_are_there.pdfIn PDF document text
    • https://cdn.sqhk.co/xavexapoxiv/igXjdDY/gezaruvez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459482/normal_60018b2589ac7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373987/normal_5fee2a65c3721.pdfIn PDF document text
    • https://cdn.sqhk.co/bamikalagov/cVhfib5/4018131821.pdfIn PDF document text
    • https://cdn.sqhk.co/titabofasika/No6Mjb5/74805466543.pdfIn PDF document text
    • https://cdn.sqhk.co/sotatixorawi/iigghbK/laxegowinejuferebaxu.pdfIn PDF document text
    • http://tadezutalowebe.22web.org/vozozexodojikeketajiwivo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374715/normal_602f79b3bf10a.pdfIn PDF document text
    • http://nosinoski.shop/what_episode_does_kaneki_kill_jasonr7jsp.pdfIn PDF document text
    • http://7evenrp.ru/meropizuforomowutabzbsd2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390056/normal_5fd852498b2fa.pdfIn PDF document text
    • http://boothattendant.com/gawebinimulitafasusa6otl7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450636/normal_5fe52fc931e04.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2f6b95a-ce9b-4d58-8843-0fe02aa3cbeb/41007115257.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc085d99-5b9a-424f-af90-521ecee11aed/zoliluwoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30c2231e-2f2c-435f-ba08-7964f750f025/78250972791.pdfIn PDF document text
    • http://nixefafezas.rf.gd/mens_dressing_gown_pattern.pdfIn PDF document text
    • http://kibowetesuve.rf.gd/bwintv_net_bbs_register_form_update.pdfIn PDF document text
    • http://duzunop.rf.gd/aa_prayers_and_meditations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dc1ef95-7457-4aba-9c27-75383cb24220/formato_hoja_de_vida_en_word_para_llenar.pdfIn PDF document text
    • http://nanabiwilave.epizy.com/hunter_xc_irrigation_controller_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5f26419-62ba-4ff7-8a78-adb6159f8a07/tuxavifevalubi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/741f678b-2ae9-4c7a-9d68-b523039e8b77/dodexo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b058cde9-72f5-4bdd-a90a-3fd8b451563b/non_programmed_decision_making_techniques.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE303 5460 bytes
SHA-256: 138ab12252f39bbfd7a045d085d2269d12a3e379f250e8bb19332ed62fab8037
font_01_sfnt_off0000f57d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF57D 9052 bytes
SHA-256: a33cfea0447beef54ca26f039ad27dca03230628658043f1887535dd7b4095fa
font_02_sfnt_off000107bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107BF 10900 bytes
SHA-256: 2428631bc6f78e6f6de9b53e1ec6be707438535426d9f7fe46b17c10d3edeabc
font_03_sfnt_off00012d55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D55 16116 bytes
SHA-256: 01ad8a83866cd0621b110ac22293a9764c71e3a7081383de2020b41d182dc0d3