Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22f4c7c03a221df…

MALICIOUS

PDF

30.1 KB Authoring application: OpenOffice.org
MD5: 1f6b1f8f4e1c6c068534d8ca25994135 SHA-1: 591d3e9e203bd94830702465f8ccab1ee94b3f46 SHA-256: f22f4c7c03a221dfc23f22efc8229c378d0e82d134d11cd1602bcb4a5d3531b6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. The critical PDF_SEO_LINK_FARM heuristic indicates the presence of a large number of external links, suggesting a phishing or SEO manipulation scheme. The embedded URLs likely serve as lures to external malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://toponsitewellness.com/uploads/1/3/0/3/130379363/3fd73b3.pdf
    • http://repozo.bc-sd.online/uploads/2020/01/28/3e1c6fb7f9b3fe.pdf
    • http://neurologiccare.com/uploads/1/3/0/2/130292073/8dac2f1109e1c.pdf
    • http://the-way-of-life-blog.com/uploads/1/3/0/3/130313169/ecc83.pdf
    • http://rowanlestat.com/uploads/1/3/0/5/130551369/wofidorozasi.pdf
    • http://16dr.pw/uploads/2020/01/29/fasagigepibipuj_pijozegokuwez_kaworepap.pdf
    • http://lurogozi.remont-msk6.icu/uploads/2020/01/28/jaxeribubufebab_zonujegiti.pdf
    • http://reliantpayrollandbookkeeping.com/uploads/1/3/0/3/130323322/4f1b1af7.pdf
    • http://mvpopen.com/uploads/1/3/0/5/130590716/4228259.pdf
    • http://neurologiccare.com/uploads/1/3/0/5/130543494/kazuvojo.pdf
    • http://nupelicanparty.org/uploads/1/3/0/7/130775784/130775784.html#femme+maison+methyl+ethel+lyrics

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001207.bin
5b069f9a019c4d530830d7082e9b986d24a6dd5472ec9f64d099e967396a22e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1207 7272 bytes

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