Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c96fafe1c9bf24a…

MALICIOUS

PDF

85.4 KB Created: 2021-07-13 20:48:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: bb046c168e0d9ae0ff805ec3f83fa5a4 SHA-1: f5e550cd342ffdf2465e0df79a960dd92bb5ae51 SHA-256: 4c96fafe1c9bf24a6b1d197adae4da8b7cc99c7d93eaf676471c30406d6ecd83
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI that points to a URL designed to appear as a legitimate news feed but likely leads to a malicious site. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the presence of the embedded URI suggests a social engineering attempt to redirect the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6359

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/-MXWpcYQ7kA/square?utm_term=clubhouse+app+on+mac
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60edb40b7d02012a3634513e/1626190859239/taki_guest_house_price.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ec7b0312c1416d2f19e76b/1626110723460/red_yellow_black_star_flag.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e7fd1752059f1ec1e59830/1625816343566/69603639265.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_off0000ebfc.bin
ce362021c9f7cdedcb7594efcd2c8f4e338389a1039ceda0ff4689cea1bafdb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBFC 17156 bytes
font_01_sfnt_off00011897.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11897 16792 bytes
font_02_sfnt_off000130ae.bin
95e2a619a19a4732e06b4cdbe48ef6fc0d5b992b234e6673134e0cacf2e106fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x130AE 10620 bytes

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