Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e04dea44482d011…

MALICIOUS

PDF

77.4 KB Created: 2021-07-18 00:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: da35e9700b42d6f33786d7f0637c49fe SHA-1: a9f7c8fe146dabc5871f82020b05055b1de8e847 SHA-256: 9e04dea44482d011f1f6c3e766cb4979108b3b443baca2eea3bce3c7c0e2d5f2
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL that points to a suspected phishing lure. Although the document body is heavily obfuscated and unreadable, the presence of the URL and the detection signatures strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7390

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/ZV5PD9BTPXI/square?utm_term=what+does+thorns+do+in+minecraft
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f348fe783e880aac7fb582/1626556671011/76462420380.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e91ad5854c1d3b3486c0b4/1625889493943/32258976276.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f11f82b348e55d1c513d30/1626414978976/4_stone_in_pounds.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ed4fe7840a1961e7b54164/1626165223981/abaddon_angel_of_the_abyss.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_off0000ce43.bin
efd5f2b49b832d2315fb33c8a546b59d51da94366dbd5ad4639aef02891177ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE43 10688 bytes
font_01_sfnt_off0000e69a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE69A 16792 bytes
font_02_sfnt_off0000feac.bin
a437952be01a7e76ad857132b1bc76afd61dd6a9e59784f5a640444ddd32384f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEAC 16592 bytes

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