Malicious PDF — malware analysis report

Static analysis result for SHA-256 beb7651343c66dee…

MALICIOUS

PDF

76.0 KB Created: 2021-07-12 22:10:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 7f2302b597869c04253e2671dc18f897 SHA-1: 89a1ef900a15398957cd4297b698a8b3eb900547 SHA-256: beb7651343c66dee9e7521eb5f56dc7a47d4b5dcb9c15c03c4dd3c47becc5c03
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, even if some are marked benign, suggests an attempt to redirect the user to external content. The PDF_URI heuristic firing points to a specific external URL that could be part of a phishing or redirection chain. While no scripts were explicitly extracted, the nature of PDF malware often involves JavaScript for malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7746

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/r_nBws6J8g8/square?utm_term=how+to+breed+punkleton+in+my+singing+monsters
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec8e981951226b8b8b8536/1626115736892/fidipulas.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec7f425f604029b9910719/1626111810771/25675952738.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec825d288cf71862a972da/1626112605438/41240836244.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e89c87f5b8673b9fefddef/1625857160043/54591525500.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_off0000c70f.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC70F 16792 bytes
font_01_sfnt_off0000df26.bin
7f4f38fe768cc66d666d0b9ec2025b0191a1b5fef14bf7fe749f64246390a6f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF26 11096 bytes
font_02_sfnt_off0000f88d.bin
80292aed945a599c9c475a1ce4ffac6ed95655dff4eeea18215ee6f308070f50		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF88D 16780 bytes

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