Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab295652b80e5ff4…

MALICIOUS

PDF

72.1 KB Created: 2021-07-13 17:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 9e8cf4cfc05adc0116e47de4c2085a29 SHA-1: e1a948fbea7747ac3afd779c7591d9c6d4852331 SHA-256: ab295652b80e5ff456b1dd095fb36df08902af9990c44cb6c00209abf96d4342
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a 'Pdf.Phishing.Trojan' signature. It contains an embedded URL that is likely intended to redirect the user to a malicious site. While the document body is heavily obfuscated and unreadable, the presence of the embedded URL and the ClamAV signature strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.1829

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/WVKuihPcy9U/square?utm_term=definition+for+subside
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e79a9186d8930991a2a8cd/1625791121944/lukudipuni.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_off0000bb63.bin
142446bbe5864b559e4b79102dc1b3846666bde9e86ecf25004660499c467c40		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB63 10380 bytes
font_01_sfnt_off0000d301.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD301 16792 bytes
font_02_sfnt_off0000eb13.bin
fdcaed5ba5d51a5da70969e43a8e09f20561115f619c424533e9a4d03ad6a351		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB13 16332 bytes

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