Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd0908fa452c5f7…

MALICIOUS

PDF

98.4 KB Created: 2021-07-18 01:11:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 917376be90b9653069b73583b552f474 SHA-1: 2c7217474bc3337890f07f268ba6832567da905f SHA-256: 9dd0908fa452c5f748cdb92bed1673c160a3c3c8ec30a0ac9f9ad470104ad51f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ClamAV as a phishing trojan and ML classifiers indicated maliciousness. An embedded URI points to a URL that, while currently benign, is indicative of a phishing lure. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the presence of embedded URLs and the overall detection suggest an attempt to trick the user into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5931

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/iXsW93xxTQA/square?utm_term=winnie+the+pooh+my+friends+tigger+and+pooh
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e94866c0906550d90c75a7/1625901158132/kobolerupuru.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec99823080d76c7a52b712/1626118530277/36225302577.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f13a119014c44c5290d4c9/1626421777789/pc_butter_puff_pastry_apple_galette.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_off00012234.bin
1d4815fdfa4ca0d3e58318b6be201defa10d4e2fb2461198562c777b90482618		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12234 11008 bytes
font_01_sfnt_off00013b63.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13B63 16792 bytes
font_02_sfnt_off00015375.bin
a8a1a5b55c8aee00f6a5fa6c92d9c698440e9969c74cc50102eb44abe7a0f1d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15375 16512 bytes

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