Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab3f6fca1f5bf68b…

MALICIOUS

PDF

82.0 KB Created: 2021-07-12 21:11:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: b0c661fd3b034c03f7b44cd6a2305ca4 SHA-1: 1865f5247ffbd412c0c7b72da18177c0889f10e3 SHA-256: ab3f6fca1f5bf68b114b7ad2af177714d4b09ae99ac695537cf06eb8c344caf3
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 PDF contains embedded URLs, one of which is a feedproxy URL that could lead to a phishing page. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's part of a phishing campaign, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6166

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/ZV5PD9BTPXI/square?utm_term=gender+dysphoria+disorder+icd+10
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e8226297884458c9a48dcc/1625825891095/41407580200.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8be5659653256e7b1a982/1625865814295/22559612420.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e788cf872c4c6263bfc5e5/1625786575901/suwelokal.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e963402dabf27235564123/1625908033024/jemebawijorube.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_off0000dd99.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD99 16792 bytes
font_01_sfnt_off0000f5b0.bin
43b73974e6577417295c4fd1dbf83083010ac4762af9df23d50ad362c8266c25		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B0 10792 bytes
font_02_sfnt_off00010e80.bin
a57035f0f37fdcddce7f5d3d4ba41c7c09e7197ace72d11d95614ed0ac3f8090		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E80 17596 bytes

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