Malicious PDF — malware analysis report

Static analysis result for SHA-256 fce96422431e5806…

MALICIOUS

PDF

118.3 KB Created: 2021-07-15 08:43:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a700e419741cf578faf82f50e11a640a SHA-1: df95221bbe2bc60138e02921083fd55ef5e1cada SHA-256: fce96422431e58063023bf746eaa5f16223804c7f87dd1abfd046f1dd974dafc
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is detected as malicious by ClamAV with a signature indicating phishing and trojan activity. It contains an embedded URI pointing to 'garglob.ru', which is a strong indicator of a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the presence of an external URI in a PDF is a common vector for such attacks.

Machine Learning

  • Nyx PDF Classifier clean score 0.1372

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://garglob.ru/square?utm_term=liberal+party+deputy+leader
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee216c7d49fb55d62567d9/1626218861146/conners_3_parent.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec8ab53f7a034ccb7b54d5/1626114741273/combine_two_photos_into.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_off00017093.bin
42517d56630874a5b3b97b21cf70698a7b03a5650e8d06291096b05feff731c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17093 10304 bytes
font_01_sfnt_off000187b1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x187B1 16792 bytes
font_02_sfnt_off00019fc3.bin
d3af697c92a1b5c419c30c3eda69a731d563ba14b0872659fff3637e52cb80e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19FC3 17492 bytes

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