Malicious PDF — malware analysis report

Static analysis result for SHA-256 56e245e93ee7e50e…

MALICIOUS

PDF

91.1 KB Created: 2021-07-13 02:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 1e6b87633b342a506e489d38087a9050 SHA-1: de0af4a7ef816e0973a692c748b065cabed9d907 SHA-256: 56e245e93ee7e50e53f0801dca02d894217135c0191aa74b9b142a5172d6fc35
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs, one of which is associated with a phishing lure, suggesting the document is designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of external URIs points towards a phishing or credential harvesting attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8172

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=anabelle+comes+home+123movies
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ecb170ad57c823365793e1/1626124657074/the_maker_beehive.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e945d63ba7d954d547436e/1625900503001/icsi_executive_question_papers_with_answers.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e7c9ee86d8930991a570a5/1625803246421/what_is_the_best_reply_for_how_are_you.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e94711fc46b150582930fa/1625900817995/55368849481.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ecbd2accf7306dfd745b11/1626127659064/american_riversongs_concert_band.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_off0000ff65.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF65 16792 bytes
font_01_sfnt_off0001177c.bin
fd7f2bf090721ee1b2ca25125cf1c12cf642ae9878318428073d062629f0167d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1177C 10828 bytes
font_02_sfnt_off0001306b.bin
2fd0f5148dd17d33381c2adf5f0b4f7e0d3ea345e85c610c6c6a5ad3cebd3fda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1306B 18084 bytes

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