Malicious PDF — malware analysis report

Static analysis result for SHA-256 37d1b33c47515d70…

MALICIOUS

PDF

72.3 KB Created: 2021-07-15 14:53:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 81a12214056c4d820eb59e7d2babb2a8 SHA-1: 2dd12dc93eb6625a17a13cf4773e91bf746f2a32 SHA-256: 37d1b33c47515d70aa6bfcec4241c9adec73c7017f5859766f768321d42e988e
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file was detected by ClamAV as Pdf.Phishing.Trojan, indicating a malicious intent to deceive users. The presence of embedded URLs, though currently flagged as benign, suggests a potential phishing or credential harvesting attempt. The PDF structure itself contains anomalies like duplicate object bodies, which can be used to hide malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier clean score 0.1797

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/qQn0o4eTdIQ/square?utm_term=impaired+verbal+communication
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60eff0c454c38e1eb6469837/1626337476166/suvuzesiwolozapela.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eda85654e5b71ae84f4bbd/1626187862382/meaning_of_empanelled.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_off0000bfd8.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD8 16792 bytes
font_01_sfnt_off0000d7ef.bin
f181f01bbaf7fbe4690b661f839e379e09c766d85f478f6285bfa36c9725d5df		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7EF 10764 bytes
font_02_sfnt_off0000f05f.bin
fc52211059282275701d0735e377cd370a36dcb29ef922b35d7c4fc8ed855ed5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF05F 14908 bytes

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