Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e84ede03cd6e85…

MALICIOUS

PDF

73.3 KB Created: 2021-07-18 11:31:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: eb068a14bf70bcb1c5934abd3207d96f SHA-1: 9569279b86c7304f317070d1d98dd709dce6a73f SHA-256: e5e84ede03cd6e85b1b5dbc3f40d99ff50ee63f0bb50f6862cfda99b9b8238e9
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URLs, despite some being marked as benign, suggests an attempt to direct the user to external resources. No scripts were extracted, but the PDF structure and heuristics point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7000

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://feedproxy.google.com/~r/sq/ugae/~3/jEScUJLm1bs/square?utm_term=materials+cost+variance
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee62ef02e0767984f5defe/1626235631790/download_beauty_plus_download.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e933488915684aa53de928/1625895752860/photoshop_how_to_change_brush_color.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ed9045f77a3e4a90f6466f/1626181701325/kazojazekunilovokoxesu.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec92a7e07849485499acfa/1626116775533/ccnav7_introduction_to_networks.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_off0000bfa8.bin
8aefdbeb12f8ac499827a9004bb15ab688134dd1d7396844e8d9f038c6b08d21		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFA8 16412 bytes
font_01_sfnt_off0000ea33.bin
17a8119827dc278e1660be3fe7458c02d353b94d75399456c1be0c1cb2302941		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA33 10284 bytes
font_02_sfnt_off00010182.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10182 16792 bytes

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