Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2ae2a366333e6ef…

MALICIOUS

PDF

75.6 KB Created: 2021-07-13 21:32:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2f08ef81d9b3df44b955c9b91c7dd4ea SHA-1: 6f04f65662ed2ba8d7fc67766ec2065dd286f0ac SHA-256: c2ae2a366333e6efa91904cf466f6a107228f8a8526c6c04d8f94f19c4875297
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains an embedded URL that redirects to a suspicious domain, 'garglob.ru'. This domain is presented in a context that mimics a search result for a book, suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or delivering a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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=fundamentals+of+human+resource+management+13th+edition+decenzo+pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8f849e370ac6322873d22/1625880649174/anderson_propane_prices.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec833b288cf71862a98432/1626112827254/house_of_wax_2005_full_movie.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec7eb812c1416d2f1a49dd/1626111672920/nasokurebutepapemas.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e8a60efe257038c080b91e/1625859598686/xanifalenefajomeniboxas.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e90615c14ff043cd5bbf9a/1625884181283/83208064513.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_off0000c600.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC600 16792 bytes
font_01_sfnt_off0000de12.bin
43eb9bb778f70c2563f116c820de0cbf5bd74524a426f8b8e10f55f4b2030a6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE12 16048 bytes
font_02_sfnt_off0001075a.bin
7558ebed723c6781e7429cb3e586ac6ebbd2527de235e02af12bbddd90b39327		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1075A 11428 bytes

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