Malicious PDF — malware analysis report

Static analysis result for SHA-256 6149179300f3128a…

MALICIOUS

PDF

84.9 KB Created: 2021-07-12 22:15:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 1caf69937a8e788b8e2d50ad2d9c4fa0 SHA-1: 8e6aa6be1d35c0a27879a6ee8e6e24d5c1345bc3 SHA-256: 6149179300f3128ad690635478c96b6ead881db2ce9162934fd14b3e426cfb64
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was identified as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. The PDF contains embedded URLs, suggesting it is part of a phishing or scam campaign. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of malicious activity, likely aiming to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8790

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/~3/1LSSs5qy-i4/square?utm_term=movie+quizzes+and+answers
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e94aa01448b0619849af98/1625901728623/basuvawutikagifepoxin.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8d74601cc8e4ceda043e3/1625872198570/snow_removal_companies_near_me.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e949805ebba154a8fda45e/1625901440738/plate_tectonics_crossword_puzzle_answer_key.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec927e83836e7a7d6207a2/1626116734423/chingy_one_call_away_mp3_download.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e78f2697884458c99d2592/1625788198491/blue_heeler_chihuahua_mix_puppies_for_sale.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec839a288cf71862a98888/1626112922672/how_to_use_clownfish_voice_changer_for_discord.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8e31ff107ff2467e5c00d/1625875231088/hulas_bar_and_lei_stand.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_off0000ea47.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA47 16792 bytes
font_01_sfnt_off00010259.bin
c73e4a985b0216238dbee60b7d87a8df792111efdae48a260a62fdcbb8807e48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10259 17324 bytes
font_02_sfnt_off00012fad.bin
209a628b47f4a2f5a6c644d1b3d3d68b32646e23c894b77e4a0e6b1ad9b2068a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12FAD 10548 bytes

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