Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6dfc7d185fd0007…

MALICIOUS

PDF

82.2 KB Created: 2021-07-18 10:40:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 08d27b86c8e47ace75f7e035680a7f9c SHA-1: 00a6c593e8727b6d45cb13561a4fa15878b85974 SHA-256: e6dfc7d185fd0007caa275131a32ece659da491ff5f568068a3da57542c87d10
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a phishing or trojan-like behavior. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are strong indicators of malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6221

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/-7-cX3opz_8/square?utm_term=childfree+not+by+choice
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ed913ae255175820c2cc40/1626181946805/82452531530.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f06a161fd42f24c9241e0e/1626368534800/pos_in_computer.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f0359dbba06d2f341b5ccf/1626355102011/50824572059.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_off0000e03a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE03A 16792 bytes
font_01_sfnt_off0000f84c.bin
4c93e704238e484ec8a2076bbbb78bbe8891f89346604353e73fc5c703d0d497		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF84C 17288 bytes
font_02_sfnt_off00012557.bin
a63e70963fc6ce8aa0e11c9887284fc772a5e33bfa5abac0f60b76f9e06c2036		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12557 10528 bytes

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