Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d55ec4bdfffb843…

MALICIOUS

PDF

73.3 KB Created: 2021-07-13 22:11:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e545bfe8a66cff1ce7e92aeb2a47d8ad SHA-1: a81ff2ad1ae7264b9e519944b031ea83347f6a39 SHA-256: 7d55ec4bdfffb843cdac1b1de1d9913338344ea3f27770aafb65763561cee9fd
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a Pdf.Phishing.Trojan signature. It contains an embedded URL that, while currently flagged as benign, is indicative of a phishing attempt. The PDF structure itself does not contain readable text, but the presence of the URL and the ClamAV detection strongly suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.1869

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/hIkXU_AiHkM/square?utm_term=another+word+for+conquer
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec8832cc9768212243352e/1626114098527/periodic_table_group_iv.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8ef163ba7d954d543d576/1625878294512/puferakitalukodajawifesa.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_off0000bfc0.bin
1fc87f2e9307ba4afe8e22f3152323cb770bf47ae0eec11ab041c6c30eb3d743		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFC0 10416 bytes
font_01_sfnt_off0000d725.bin
1085e6c785ed7e7ec0e6792972d5165d4108f6204f4c91886e3e4a2201ccdce2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD725 16436 bytes
font_02_sfnt_off000101a5.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101A5 16792 bytes

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