Malicious PDF — malware analysis report

Static analysis result for SHA-256 255697d8ed8c7a1e…

MALICIOUS

PDF

78.6 KB Created: 2021-07-19 17:16:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: b98378f57e6926acf4714b18c27e6be5 SHA-1: 259927d70c85dbdc5171204118a5f26003426ba0 SHA-256: 255697d8ed8c7a1e125621fa5f1b62d7f71f7e2258b6e33ecc5e87d9f9b596c1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of embedded URLs, despite some being marked as benign, suggests a phishing or malicious content delivery attempt. The ML classifier also indicated a high probability of maliciousness. No scripts were extracted, but the overall indicators point to a malicious PDF designed to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6166

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/sq/ugae/~3/UQ8tT55rDuk/square?utm_term=character+traits+reading+passages+pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f0572a8b9e3a2e6e9c8e0b/1626363691201/tivole.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f4571ac5d9e6782ceb0ce4/1626625819065/vapanuf.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f04949edd9820e692e6bfd/1626360138046/dragon_age_inquisition_golden_horn.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f0ad019ac96d695a4ae8cc/1626385665520/lefozogisosesesiditewutu.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_off0000d44c.bin
3a830ff4a1f1f560c9c67de39cab4e1fc16f990c91c87070de07317ae35eb579		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD44C 16072 bytes
font_01_sfnt_off0000fdd3.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDD3 16792 bytes
font_02_sfnt_off000115ea.bin
4b12ecdda955069efb001c9522590cbc3c8bccdc1b94711c52555a6094c0fc04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115EA 10764 bytes

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