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)
MD5: c2550767848b8de5b9766912b3f4a562 SHA-1: 75224e44ce5df0e8943bcd43c25c8ca073738f93 SHA-256: a229c4920f469c7524c076b00e54ac51f0f62cd655d93eb1af93cefa9f6ebd89
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further confirm its malicious nature. Although no scripts were explicitly extracted, the presence of embedded URLs and the overall detection suggest it's designed to redirect users to malicious content, likely a phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
    • https://cdn.sqhk.co/pugepavofu/UvTPibQ/how_many_different_color_road_signs_are_there.pdf
    • https://cdn.sqhk.co/xavexapoxiv/igXjdDY/gezaruvez.pdf
    • https://static.s123-cdn-static.com/uploads/4459482/normal_60018b2589ac7.pdf
    • https://static.s123-cdn-static.com/uploads/4373987/normal_5fee2a65c3721.pdf
    • https://cdn.sqhk.co/bamikalagov/cVhfib5/4018131821.pdf
    • https://cdn.sqhk.co/titabofasika/No6Mjb5/74805466543.pdf
    • https://cdn.sqhk.co/sotatixorawi/iigghbK/laxegowinejuferebaxu.pdf
    • http://tadezutalowebe.22web.org/vozozexodojikeketajiwivo.pdf
    • https://cdn-cms.f-static.net/uploads/4374715/normal_602f79b3bf10a.pdf
    • http://nosinoski.shop/what_episode_does_kaneki_kill_jasonr7jsp.pdf
    • http://7evenrp.ru/meropizuforomowutabzbsd2.pdf
    • https://cdn-cms.f-static.net/uploads/4390056/normal_5fd852498b2fa.pdf
    • http://boothattendant.com/gawebinimulitafasusa6otl7.pdf
    • https://static.s123-cdn-static.com/uploads/4450636/normal_5fe52fc931e04.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/f2f6b95a-ce9b-4d58-8843-0fe02aa3cbeb/41007115257.pdf
    • https://uploads.strikinglycdn.com/files/bc085d99-5b9a-424f-af90-521ecee11aed/zoliluwoj.pdf
    • https://uploads.strikinglycdn.com/files/30c2231e-2f2c-435f-ba08-7964f750f025/78250972791.pdf
    • http://nixefafezas.rf.gd/mens_dressing_gown_pattern.pdf
    • http://kibowetesuve.rf.gd/bwintv_net_bbs_register_form_update.pdf
    • http://duzunop.rf.gd/aa_prayers_and_meditations.pdf
    • https://uploads.strikinglycdn.com/files/6dc1ef95-7457-4aba-9c27-75383cb24220/formato_hoja_de_vida_en_word_para_llenar.pdf
    • http://nanabiwilave.epizy.com/hunter_xc_irrigation_controller_manual.pdf
    • https://uploads.strikinglycdn.com/files/c5f26419-62ba-4ff7-8a78-adb6159f8a07/tuxavifevalubi.pdf
    • https://uploads.strikinglycdn.com/files/741f678b-2ae9-4c7a-9d68-b523039e8b77/dodexo.pdf
    • https://uploads.strikinglycdn.com/files/b058cde9-72f5-4bdd-a90a-3fd8b451563b/non_programmed_decision_making_techniques.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

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

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