Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d6c41a1a15467ec…

MALICIOUS

PDF

75.6 KB Created: 2021-07-20 23:16:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 54c7ab8e20ce799ac1f95a824d40d9fd SHA-1: b9b4d0b3189a643ca56fc6ac01f4d84ca49f6654 SHA-256: 7d6c41a1a15467ec0aaaeb7aaf5a52c02bb77efc990fe6eee162055f88ea1b3a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as a malicious PDF by ML classifiers and ClamAV, with heuristics indicating the presence of external URIs. Although the extracted URLs point to benign content, the overall structure and detection suggest a phishing or malware distribution attempt, likely using embedded scripts or exploits to redirect users to malicious sites or download further payloads. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7056

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/gOBB6uaVNRA/square?utm_term=parul+datta+book+download+pdf+free+download
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f0256596309e3685ac95c0/1626350950117/bazezakilikoxemoxi.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f4471ba9adb72803b02a21/1626621723355/heartburn_and_difficulty_swallowing.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f3a63c9c7c9f0ea99e319e/1626580540907/the_champany_chop_and_ale_house.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f53b3db84a576e6c1613c9/1626684221814/tiribe.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_off0000c762.bin
ee9353306915e752ec7cd2e96fd160ec20a715ec291fe8714f48cc49a759dafe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC762 10648 bytes
font_01_sfnt_off0000dfbb.bin
82c38a1646e82b0c5167ffc7116b3cacca8991193f01f8f6d27ca1c1ea1b275f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBB 16360 bytes
font_02_sfnt_off00010a4f.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A4F 16792 bytes

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