Malicious PDF — malware analysis report

Static analysis result for SHA-256 e154985070c1f18a…

MALICIOUS

PDF

76.0 KB Created: 2021-07-13 01:34:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e98e308810be31c2bc1228083305a238 SHA-1: 74956301d50a2dc4d584fb63dcd45293016add94 SHA-256: e154985070c1f18a528aee0a33a53a4139e73a7d2379f3f482b0afd5d6500f73
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains an embedded URL that directs to a suspicious domain, identified as a phishing attempt related to 'thop tv sports download'. ClamAV detection and ML classification further indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI suggest a phishing or malware delivery vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7703

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://chcial.ru/square?utm_term=thop+tv+sports+download
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ecb34cffa5e93eb293b6c0/1626125132598/42in_to_feet.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ecb2d5ea6ac6690684e5e9/1626125014117/business_plan_introduction_example.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ecb517fb12492bbb58480c/1626125591504/how_to_encrypt_file_for_free.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_off0000cc57.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCC57 16792 bytes
font_01_sfnt_off0000e469.bin
9aef6f1b23c272703f79d617d10f25553ac4757f995f755a28b69848d3a6e144		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE469 15796 bytes
font_02_sfnt_off00010d03.bin
676e643cf7c5d0a9229379528db94431e565ddea175a10e6428e2ec8f5018868		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D03 10380 bytes

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