Malicious PDF — malware analysis report

Static analysis result for SHA-256 e65e6d647d492dde…

MALICIOUS

PDF

80.1 KB Created: 2021-07-15 11:02:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f273fffac6d301b4eaceacfa540428e0 SHA-1: 46c465ef84234fa6ff76e2ff4929db061c541a46 SHA-256: e65e6d647d492dde64238a4e7b1e0599650bffe52daaeb9b88511c5949902c21
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 pointing to 'https://archism.ru/square?utm_term=how+do+i+draw+in+word', which is likely used to redirect users to a phishing site. The PDF structure itself does not contain readable content, but the presence of the malicious URL and the ClamAV signature strongly suggest a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier clean score 0.1658

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://archism.ru/square?utm_term=how+do+i+draw+in+word
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e77b0f056eec75d64b8be7/1625783055423/60819429987.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec8820dbb514329faf9b85/1626114080687/53290966493.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_off0000db67.bin
f3d545d05c2cacbb3c10a43fa88f9be7a9149d2695fd484c45318c1f97ca17b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB67 16400 bytes
font_01_sfnt_off00010587.bin
6dd761c164ba8f85a530a24148a9f4e0c52fa6db4448dc5f31a86ae652690ee5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10587 9876 bytes
font_02_sfnt_off00011b4d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B4D 16792 bytes

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