Malicious PDF — malware analysis report

Static analysis result for SHA-256 679243c2c4f3da65…

MALICIOUS

PDF

67.4 KB Created: 2020-11-17 05:24:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5db0ef9254a1b05a40978df54d05c72e SHA-1: 1f4b4cb21f1d6b7644de69a267b2f78a62e0c805 SHA-256: 679243c2c4f3da65113821a086bfdd1315bfdfb97314a41500a8b1682bb7e7c6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a URL that is flagged as malicious and associated with phishing. The document body, though heavily obfuscated, contains text that appears to be a lure for "best war games without internet". The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffi.ru/123?utm_term=los+mejores+juegos+de+guerra+sin+internet
    • https://cdn-cms.f-static.net/uploads/4387715/normal_5f9ba748e8360.pdf
    • https://cdn-cms.f-static.net/uploads/4382643/normal_5f9e1d0c763ad.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/febopa/jumevanozosimisabag.pdf
    • https://s3.amazonaws.com/jamokaroxoj/physiology_cardiovascular_system.pdf
    • https://uploads.strikinglycdn.com/files/dae8fb89-4b67-4bd4-9ef5-123795c4573a/24833412502.pdf
    • https://s3.amazonaws.com/tuxutedi/34578144790.pdf
    • https://s3.amazonaws.com/jifesu/74891948889.pdf
    • https://s3.amazonaws.com/memul/95666324696.pdf
    • https://s3.amazonaws.com/falevi/fortnite_tracker_stats_ninja.pdf
    • https://s3.amazonaws.com/sojaxub/33555300297.pdf
    • https://s3.amazonaws.com/juliziwojatige/defender_of_varrock_quick_guide.pdf
    • https://s3.amazonaws.com/warapagefasovi/dutch_colonial_house_pics.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c88a.bin
77034be83e8dd0bb6fea44921a339d964c1733d1f1a1a91b2a5825ef3c964751		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC88A 5128 bytes
font_01_sfnt_off0000d9e7.bin
0228df19df76b386ec39db576f93327aaef3a3a35ab0c6938c261d006f13f4a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E7 11320 bytes

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