Malicious PDF — malware analysis report

Static analysis result for SHA-256 fced0aef47432d11…

MALICIOUS

PDF

83.1 KB Created: 2021-07-14 08:41:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: bcb76df9c48d105900d5faedb7c2d984 SHA-1: b0aab11c5ccb2f38b1a0fc508e4e0cddd4abd599 SHA-256: fced0aef47432d1168ace52607046766ee7f82203cdecf3bb8528660084c8b2e
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a signature indicating phishing and trojan activity. An external URI heuristic points to a URL embedded within the PDF, which is a common tactic for phishing lures. Although the URL itself is marked as benign, the presence of the embedded URI and the ClamAV detection strongly suggest a malicious intent, likely related to phishing or a scam. No scripts were extracted, limiting further analysis of execution behavior.

Machine Learning

  • Nyx PDF Classifier clean score 0.0936

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/razvivatel/yapz/~3/UkUWPC8UKDU/square?utm_term=lumion+8+tutorial+for+beginners+pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eda232b564270cd6e98f3b/1626186290551/dazixubavewivapuzu.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec9d2c0e7a3c5fba3fe434/1626119468556/83002212948.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c759.bin
d4cc992d47070a13da003ef322070ce7ea126bdb9d290778423b034e944e37ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC759 17000 bytes
font_01_sfnt_off0000dfbc.bin
c966fbabe037b3e03311e9c3144490ca6e8a52c140cc7545e8ca265a8ee474e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBC 17784 bytes
font_02_sfnt_off00010e50.bin
dfa56332a3cfbe4cc2370952cb31fa738e944ac05e8315b75cecaf49c8d63f1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E50 11248 bytes
font_03_sfnt_off00012840.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12840 16792 bytes

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