Malicious PDF — malware analysis report

Static analysis result for SHA-256 d10e2ad573ab3d31…

MALICIOUS

PDF

77.4 KB Created: 2021-07-15 23:34:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 205bcee3bdce6ede49717693fad67644 SHA-1: fda84771f6d52284a1ccc3f8080c5f73b300b851 SHA-256: d10e2ad573ab3d31de66820e1e5a949ccb420832eda14f45bd958feb0c47f397
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that, while currently flagged as benign, is indicative of a phishing attempt. The PDF structure itself does not contain readable text, suggesting it is designed to exploit vulnerabilities or deliver a payload indirectly.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8791

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/razvivatel/yapz/~3/4Ji06Fp1PxY/square?utm_term=video+of+cynthia+fee+singing+thank+you+for+being+a+friend
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f072abcd12aa5cbeb77b79/1626370731258/only_war_hammer_of_the_emperor.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f014801c2a3138378f3856/1626346624291/picture_quiz_questions_and_answers.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e768fb9aced45fe32dc50c/1625778427435/how_do_you_make_your_snap_score_go_up.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e872ae62e6514f6905ef67/1625846446145/reading_passages_with_multisyllabic_words.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60edafddc2b60e0ed5b695a7/1626189790230/84469278268.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_off0000c992.bin
2c78183fdc798354ea14cbbc204c3f4b0170a7d4c4b8f38a996cf552c85d3d4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC992 11124 bytes
font_01_sfnt_off0000e357.bin
5ad2652dd6a342953c10cf4b07ea4d04e93b9e857e56e752e4272168271bba32		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE357 17360 bytes
font_02_sfnt_off00011130.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11130 16792 bytes

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