Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e5dd1759c051fac…

MALICIOUS

PDF

121.6 KB Created: 2021-07-15 13:08:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 040dd9b87e46a123630a86cdf4fab59c SHA-1: 6465c83ba1864e528db02b1be69564db604892f4 SHA-256: 8e5dd1759c051fac2ade9acce69e0463812eda391e79ee5f065487d69a9ad08f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that points to a suspicious domain, identified by ClamAV as a phishing trojan. The ML classifier also flagged the PDF as malicious. The presence of an external URI and the overall detection suggest a phishing attempt designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5361

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://irlanc.ru/square?utm_term=lord+alfred+denning
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60efeaade00eb31d7cecc8c8/1626335918030/13985180524.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edc3bdac614e13d12d2e09/1626194878091/xigonigamiwubot.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60efe59e4980ba6b3b6d97a3/1626334622945/wixozetavepuw.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_off00017e8f.bin
2701b246a2e3f784d351c57ec188d25d1512021563b474577718b551686ba6ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17E8F 17504 bytes
font_01_sfnt_off0001ac64.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AC64 16792 bytes
font_02_sfnt_off0001c47b.bin
3e60d59cffc4d04702de0511e09136192d566e79303044b12db7d8bdfd9f7371		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C47B 10220 bytes

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