Malicious PDF — malware analysis report

Static analysis result for SHA-256 e11471fadf9116c2…

MALICIOUS

PDF

69.8 KB Created: 2021-07-16 14:21:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ba2cac966608ef1a2ce26d0ad5b25c86 SHA-1: 1c452256203737afe39f667919422b018d84158d SHA-256: e11471fadf9116c20870ac541cb8061975296459a5e5efc6dfe1879651f430c4
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains an embedded URI that points to a URL associated with movie streaming, which is a common lure for phishing attacks. While no scripts were directly extracted, the PDF structure and the presence of an external URI suggest an attempt to redirect the user to a malicious resource.

Machine Learning

  • Nyx PDF Classifier clean score 0.1660

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/XMoLd4EPXkg/square?utm_term=the+day+after+tomorrow+full+movie+putlockers
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f017f434da7a51e3f4e663/1626347508910/pdf_reader_smartphone_android.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e81e8425441e1b3788a14c/1625824900709/how_to_drive_a_standard_vehicle.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_off0000b177.bin
039f8d7e2f7179d6682c8b973c0a51d4d685aa0917f897f45a5e4789c0017794		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB177 15392 bytes
font_01_sfnt_off0000d8fa.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD8FA 16792 bytes
font_02_sfnt_off0000f111.bin
7650d8104ffe4bf33279bab0feae259031c135763dc7f37111fffe2fcb106bf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF111 11204 bytes

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