Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8f8c209b06b9770…

MALICIOUS

PDF

74.9 KB Created: 2021-07-18 07:03:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 5da3f515f885e5cb7586758e523e365f SHA-1: c13293d43d16b888865b286b036165e4b1456e18 SHA-256: b8f8c209b06b97701435ac7c505c9db3b7c9610a5c2fd2c0358ddcf5d9e62ffd
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing or trojan threat. It contains embedded URLs that likely lead to malicious content or further stages of an attack. The presence of PDF_URI and EMBEDDED_URL heuristics suggests the document is designed to redirect users to external resources.

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://feedproxy.google.com/~r/sq/ugae/~3/jEScUJLm1bs/square?utm_term=american+bully+puppies+for+sale+in+colorado
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f386b3d9389f5e80907cfe/1626572467741/kozabosusepe.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e869c80ad3a627070f05f0/1625844168874/49069084457.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e795568ad60325f0c22c6a/1625789782397/likunokimipodapalaxub.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8c19f684b4e19c9c5dd60/1625866655952/pujevuxexokimufa.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ed9c7ec2b60e0ed5b4ecc9/1626184830269/james_charles_and_kylie_jenner.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_off0000c2aa.bin
361265fc5691103ac2e6857debc94e864439a6714079152b4998640acc77ee2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC2AA 16784 bytes
font_01_sfnt_off0000ee35.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE35 16792 bytes
font_02_sfnt_off0001064c.bin
fcbea237cbd356864ad33e05ac6a27139cbbc5fe733b9cc377617f89c34ba846		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1064C 11016 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.