Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cb3b199aadc668f…

MALICIOUS

PDF

68.9 KB Created: 2021-02-22 21:14:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba9db0f7084efd83ce0c1edfa8cfe3e5 SHA-1: bab289ce6e56fda6cdf0d53b49a8bb3207f191b0 SHA-256: 4cb3b199aadc668fc626eb2f1a3a13743fb0868b8904a2fbbc955783ddf14f88
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site, likely disguised as a benign document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://maypoin.ru/wix?keyword=comparison+of+arithmetic+and+geometric+sequences
    • https://miwebuzoz.weebly.com/uploads/1/3/4/0/134095964/guviloram-nawixujep-gafedupijawe-gujunelo.pdf
    • https://cdn-cms.f-static.net/uploads/4384642/normal_6024b85a5a3b1.pdf
    • https://cdn.sqhk.co/pafatewodoju/jgoibgf/off_road_track_near_me.pdf
    • http://juvugewit.iblogger.org/what_does_the_color_black_represent_on_a_map.pdf
    • https://cdn-cms.f-static.net/uploads/4384045/normal_6011a5c1e883e.pdf
    • https://cdn-cms.f-static.net/uploads/4493888/normal_5fe92dbc46fbb.pdf
    • https://static.s123-cdn-static.com/uploads/4404503/normal_5ffe0a3ed0092.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wupiwupiwot/66639268298.pdf
    • https://s3.amazonaws.com/pogolo/real_flight_simulator_for_pc.pdf
    • https://s3.amazonaws.com/bizamesuwepe/7496908467.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_off0000d1e3.bin
8d4f36d0516c5efcbdb1a8508817a6d649cee50ef9ce276f8dc77c2c8cbf8e81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E3 5568 bytes
font_01_sfnt_off0000e49b.bin
34dd1c5d195c2dce2ea7d4a8f374d76100618df0d60b93f256a82a3036163970		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE49B 10056 bytes

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