Malicious PDF — malware analysis report

Static analysis result for SHA-256 e973ea66fddf3a1d…

MALICIOUS

PDF

81.2 KB Created: 2021-07-17 23:39:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c317126d7c10d373d2a03180a8b9cd3f SHA-1: a9ce1f6e3c1e2f8020262e787e3027cef00f4f09 SHA-256: e973ea66fddf3a1d285d9ff9cd59ceaf5a62462b68dbaf5be282c8b64333cd99
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is detected by ClamAV as Pdf.Phishing.Trojan, indicating a phishing and trojan payload. An embedded URL is present, which is a common tactic for phishing lures. Although the specific URL is currently flagged as benign, the overall detection suggests malicious intent, likely to direct the user to a site for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.1467

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/mHcMeCcfVl0/square?utm_term=new+testament+names+male
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e7eb0c95719b356d93927a/1625811724727/11243377250.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f31c067f94c710fbc2b557/1626545158412/zasizogemem.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_off0000e00e.bin
a0f27218cb1fd0d3dd97cf904b4fbef0d3f169ab95560bb0bc371d308a18b057		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE00E 10020 bytes
font_01_sfnt_off0000f65a.bin
bcf5f8ee98b1f505c4e2716beb3b7e00636ca4577fbfc8165ccab2e455d0ad3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF65A 16584 bytes
font_02_sfnt_off00012150.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12150 16792 bytes

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