Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dce4883cd36f66c…

MALICIOUS

PDF

90.8 KB Created: 2021-07-21 15:54:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 71b2b6ca57d699a868ec2efa7e989edd SHA-1: aac4c672af44b12c90672d4361f73725a5daa8f8 SHA-256: 2dce4883cd36f66c64344407d20b26d357df072f2e042c11f98642f96e42f377
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing attempt. The document contains embedded URLs that likely lead to malicious sites. Although no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to exploit vulnerabilities or trick users into navigating to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://feedproxy.google.com/~r/sq/ugae/~3/7R6buoffwiA/square?utm_term=god%27s+gift+to+you
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f0b8c844974629b9331f27/1626388680657/convert_file_into_word_document_free_online.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e95cd3025aa46e30d49892/1625906387979/inverse_trigonometric_functions_class_12_important_questions_with_answers.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee966f8685745b7d197540/1626248815876/wepiderelopenememil.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e94a21c4c1a734c5d82c84/1625901601219/lords_mobile_mod_apk_unlimited_money.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f377be6d5e991e36e1fdb7/1626568639099/pleading_drafting_and_conveyancing.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec940ab3b63f0898f35d06/1626117130539/how_does_a_short_story_differ_from_a_novel.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f459c09c7c9f0ea9a45466/1626626496437/87024048906.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ece62a2ae47d2ac91b9bc3/1626138154354/76424045704.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f4435c860d895b4830bb50/1626620764907/what_am_i_riddles_and_answers.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f7a3143fe7684a17b963a7/1626841876994/journal_of_materials_engineering_and_performance.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f365a6bb7e64222df98fd4/1626564006609/56264620213.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f74b54f86f6b5a1517827e/1626819412269/for_work_in_spanish.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f77d25c92ef868b9202f15/1626832166021/63391204830.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f719419f99206da37fd4bd/1626806593996/witikubevezix.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60eda479573bc4731c8a1b1d/1626186873523/wobofotimazunipiratuwaw.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee0121ad58ca03d22a869e/1626210593341/the_best_town_hall_3_base.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ed96db46a7611a87ceee76/1626183387552/oxford_english_dictionary_online.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8fbe212fb7d0b2791cde1/1625881570486/card_game_called_may_i_rules.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e87511c2683467d4f27998/1625847057485/2nd_line_of_defence_immune_system.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f7c6c10f31d77fba3b45ca/1626851009614/what_is_divergence_test.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010255.bin
b3adaa3bd8192f0eb13611eab8123604961974783967f354e1dcfa4281dc516e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10255 17056 bytes
font_01_sfnt_off00012ee8.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12EE8 16792 bytes
font_02_sfnt_off000146ff.bin
1dedc9c644fb861ff9468affbc10c91ad4f7726d44a61c340c333418c2320439		 pdf-font-stream PDF embedded font (sfnt) at offset 0x146FF 10272 bytes

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