Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd36639d43e57058…

MALICIOUS

PDF

96.2 KB Created: 2021-07-17 16:45:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 6141908f74655e804e03d96b1a1693b0 SHA-1: 2487d32bc4535f2021f549ebb2c22c7308d53c92 SHA-256: fd36639d43e570589fbd60db10751f10a2221ad916f751ab5d6a8b42aabe8f96
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to a Google feedproxy URL, which is often used to obscure malicious links. While the document body is heavily obfuscated and unreadable, the presence of the PDF_URI heuristic and the ClamAV detection strongly suggest a phishing or malware distribution attempt. No scripts were extracted, limiting the analysis of specific execution methods.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5903

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/-7-cX3opz_8/square?utm_term=rob+dougan+clubbed+to+death+mp3
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee520e7426fb5109f611b6/1626231310473/14942620150.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f067a81a769948b751ba02/1626367913218/how_to_turn_into_powerpoint_slide.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e940ac0a287971af9ae76d/1625899180582/nowudazopeni.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f0f9cd78fb23041afed288/1626405325163/skin_imperfections_types.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f00d1034da7a51e3f469ae/1626344721014/appetite_for_democracy_3d.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000104f5.bin
b3b5f0bf39624b0316334e7a51f06fd5b99f5b3bdad93417b0869bfcce48f10a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x104F5 11060 bytes
font_01_sfnt_off00011e19.bin
7531d12087c1aab1d6750e8241504fde295de5a120ba1030111568db1260077f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E19 3164 bytes
font_02_sfnt_off00012b29.bin
064c1287407b223f4e27d11a97420554a86ed48d78047af7725bda00990adefc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B29 18764 bytes
font_03_sfnt_off00015c67.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15C67 16792 bytes

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