Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7af906f1059500…

MALICIOUS

PDF

74.5 KB Created: 2021-07-15 20:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 560da44aa42d5225bc92a3c5a5e28869 SHA-1: 81a99a78afc524e120f4df69fa3a13faf7dc9cba SHA-256: ee7af906f105950098243e73abb72b1ffd458983ff06898e7bd098404c5c846a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains embedded URIs that point to external resources, suggesting an attempt to redirect the user to a malicious site or download further payloads. The presence of these links and the malware detection indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7703

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/W5vEtEh6t-A/square?utm_term=bill+of+lading+and+airway+bill
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e833acd56f0f361274aee8/1625830317018/dexomezisu.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee04f2f6d8087912c2bfaa/1626211570321/kinovenakam.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ee0bda84a0477e84a795f7/1626213338526/8234743172.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_off0000c664.bin
e4e3d425843e5e4a02de8c29896f5c8bdb2a4e75fc1d490a799945299b6b0b75		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC664 10524 bytes
font_01_sfnt_off0000de41.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE41 16792 bytes
font_02_sfnt_off0000f653.bin
1e6ecd70f1d629db35670f76171ba8b65f22771b25837d392677ef5303129aeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF653 15688 bytes

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