Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbdf3c3f71060f90…

MALICIOUS

PDF

85.1 KB Created: 2021-07-17 23:52:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c7eea34a1fd7857b71ab448dbe940964 SHA-1: 393b553583548e53ed2c95556db850b5bb5bdb56 SHA-256: dbdf3c3f71060f9036cb0414832be42b995781d4af4fcc6bebe8c5bfcfa2fc53
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 or trojan threat. It contains numerous embedded URLs pointing to external resources, likely intended to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, suggesting an attempt to conceal its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9934

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://feedproxy.google.com/~r/sq/ugae/~3/4aHNpQc2m6I/square?utm_term=clinical+veterinary+microbiology+pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f335915f13a15bd81d5fed/1626551697487/tokiberosiw.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f0a79d9a456f4cc40a1f7d/1626384285451/golizavepizimawuwa.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f21989ea581e22be248410/1626478985387/53927343470.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e904d412fb7d0b27923189/1625883860554/reese_witherspoon_ava_phillippe.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f217aad416f421c1560617/1626478506965/yes_or_no_tarot_reading_a_free_answer_to_your_question.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f1f62f2516006cc691517e/1626469935789/73.4_kg_to_lbs.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f23ae350974615f91728d9/1626487523598/the_holy_spirit_must_come_down_and_africa_will_be_saved_lyrics.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60efec9e3015c64070c8fb6f/1626336414643/vosorajaka.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e79c175eabb22f35d71f9f/1625791511486/cell_in_hypertonic_solution.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_off0000e8c7.bin
423a7210b39fb26533a60e001e838a46550e0b13f6c7bc756809ecc095b07721		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C7 17924 bytes
font_01_sfnt_off000116ab.bin
40c2bc45a0ac48ff29a83299f151aea22757088ec8327415a04a98340e43199a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116AB 11148 bytes
font_02_sfnt_off00013051.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13051 16792 bytes

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