Malicious PDF — malware analysis report

Static analysis result for SHA-256 f16454081d1c21a8…

MALICIOUS

PDF

95.3 KB Created: 2021-07-13 16:23:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f2e52e45999e7d3fc57853a0a2786eca SHA-1: 4c13d7d7df729159838cdba78cd0a549c38ef8f2 SHA-256: f16454081d1c21a876cff94921b4e5235dc0f625780f8bdc822719f34f38589b
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains an embedded URI pointing to an external website. ClamAV detected this file as 'Pdf.Phishing.Trojan'. While the document body is heavily obfuscated and unreadable, the presence of the embedded URL and the ClamAV detection strongly suggest a phishing attempt to redirect the user to a malicious site. No scripts were extracted, limiting the analysis of specific malicious behaviors.

Machine Learning

  • Nyx PDF Classifier clean score 0.0477

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=meaning+of+consent
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8e7780a287971af9724ac/1625876344648/17373580725.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ecb985522a830616596217/1626126725746/which_union_territory.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000da7f.bin
8d4e913911b8e9b5f6bde592947393c27e690fb26fe7222d4ad7caa3f2fb95c8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xDA7F 19704 bytes
font_00_sfnt_off0000cac3.bin
10071c759415d50700e2b31951de66788d810311cc824b714952baf45290087a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCAC3 4304 bytes
font_02_sfnt_off0000fca9.bin
db0408375498a93e3da9edbfa6f7600f192151b46c275d8f1773f9f676d638ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA9 28032 bytes
font_03_sfnt_off00014162.bin
5117bd012d16408862f282f83488df7e422a8e0198103b441dd69a9dda995233		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14162 10356 bytes
font_04_sfnt_off000158f1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x158F1 16792 bytes

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