Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10212ad85a55461…

MALICIOUS

PDF

79.1 KB Created: 2021-07-16 22:31:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f42f55bab29af19b67f4c2ded54062e8 SHA-1: c95072f3667991aa351673e8a1546d9d5bd0856f SHA-256: e10212ad85a55461295109ceb41e6de966937aae3c2c899a5c73123bed52b166
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains embedded URLs that likely serve as lures for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8374

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/~3/7R6buoffwiA/square?utm_term=graphite+drawing+for+beginners
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec996af91837287388cb21/1626118506851/whistle_notification_iphone.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e88302cdde05541e20adcd/1625850626480/kakafulawubolivojagapawax.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f050dd9ad02013e3701cb7/1626362077729/safit.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f1466f6186c43100445968/1626424944062/33931340758.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f02c8ce00eb31d7cefa1c0/1626352780258/59233643225.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_off0000d1fc.bin
af3e55a6b20d84edef2a1e445e06f9dceeb9d04e9de0b0268611460f8a4f5c76		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1FC 17444 bytes
font_01_sfnt_off0000ff75.bin
cd26f03d5a09391466325e8d92b793358170f8ac28b365885199c4abbb5f51bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF75 10996 bytes
font_02_sfnt_off000118a1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x118A1 16792 bytes

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