Malicious PDF — malware analysis report

Static analysis result for SHA-256 946a681bc10ba1b6…

MALICIOUS

PDF

80.3 KB Created: 2021-07-18 03:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d4df113b9e428cfb8bb71e960fedaa79 SHA-1: c0722ce0acac84f11f8c8784f08d1d1762ffa396 SHA-256: 946a681bc10ba1b6de3328fbf6382a19cae732dd0ce96b1c8554b3ff49137cd7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that likely lead to phishing sites or malware downloads. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users, potentially through social engineering or by leveraging PDF vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8298

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/~3/5Aj-mlxkUx8/square?utm_term=baaghi+movie+download+full+hd
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60edc72a7979814f85a5aec3/1626195754280/25955064062.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f357fcd9389f5e808e6be3/1626560508834/xijuzazejavogemejesa.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f34d747e0b4d5f6b1ab8bf/1626557812290/what_bnha_character_would_date_you.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8d1f3123eaa19f8fcd3f0/1625870835990/android_crack_software.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e9411637cb90447560ef20/1625899287087/1_gig_to_kb.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_off0000d8f0.bin
b9d14cbd0144d25464546686bd1badd15c8ad6f7ff184c31a993131e4390fd69		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F0 16876 bytes
font_01_sfnt_off00010505.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10505 16792 bytes
font_02_sfnt_off00011d1c.bin
d528869f2416f46a88dba7d04e6b4361e612f2dfd4c0f63668cc5278d0afff52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11D1C 10740 bytes

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