Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b073522a7a837f…

MALICIOUS

PDF

85.9 KB Created: 2021-07-14 09:13:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 1d0ef5dbc1d3b5fb70de3cf3ab13b551 SHA-1: 7b781d0246e5df43bc4ae5f8a5412ad116b1df81 SHA-256: e0b073522a7a837f0456e5a0eb7b944365c8a60a18d618743ef2a82ece21097c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating phishing and trojan characteristics. It contains an embedded URL that, while currently flagged as benign, is likely part of a lure. The PDF structure and embedded artifacts suggest it's designed to exploit PDF viewers or deliver malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6359

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/razvivatel/yapz/~3/AG-UZpNbJGc/square?utm_term=promoting+cultural+diversity+in+the+classroom
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ed2ccfc439f82871623136/1626156239694/18845261131.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e82a62fdc75e32ab0ab2ec/1625827938529/brownian_motion_has_to_do_with_the.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec7e48ef188817f7e0e029/1626111560828/class_8_chapter_15_science_question_answer.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_off0000ef74.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF74 16792 bytes
font_01_sfnt_off00010786.bin
8cf1b35077d35c1734d727a95b0a926eee7d7afd730c615172327c8c1a796aa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10786 16420 bytes
font_02_sfnt_off000131e5.bin
fbf4cf2fd0b8655ef3b6bdce296bdf43b678aa32c2fc83df7b0130edeee92c90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x131E5 11100 bytes

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