Malicious PDF — malware analysis report

Static analysis result for SHA-256 deefe0718d98bfe0…

MALICIOUS

PDF

39.6 KB Created: 2020-06-16 21:40:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00577bf5616420ab49fb7c811a00c394 SHA-1: e9001fc7b3be4141a7da89e05348450e8e69c184 SHA-256: deefe0718d98bfe0d7e07284646572101e2eb126e8d80ad027a5bd81b16838ab
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links to various domains, indicating a link farm or redirection scheme. The ML classifier strongly identified this PDF as malicious. The presence of numerous URLs suggests the primary purpose is to direct users to potentially harmful external content, rather than delivering a direct exploit within the PDF itself.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://raleighroofingprofessionals.com/uploads/1/3/0/6/130604894/130604894.html#p5gd1+vm+s+manual
    • http://kathysdelisalads.com/uploads/1/3/0/5/130551399/5408219.pdf
    • http://townesquaresalons.com/uploads/1/3/0/2/130288510/riwivefovale.pdf
    • http://kelianpersonalized.com/uploads/1/3/0/8/130874029/porajina.pdf
    • http://trianglerism.com/uploads/1/3/1/8/131857000/lezufut.pdf
    • http://maktc.org/uploads/1/3/0/5/130539074/6168f998c87.pdf
    • http://loonietooniestore.com/uploads/1/3/0/6/130621125/zakirogep-koxugojemo-kajugupi.pdf
    • http://andiamowithamy.voyagerwebsites.com/uploads/1/3/0/6/130639784/8904711.pdf
    • http://bahamasaugustllc.com/uploads/1/3/1/4/131410939/9773237.pdf
    • http://hbcommunitymortgage.com/uploads/1/3/0/6/130605048/5943015.pdf
    • http://fracturedoptics.com/uploads/1/3/0/7/130775049/lokosemagetuped.pdf
    • http://autodiscover.mccormicksgp.com.au/uploads/1/3/0/6/130620898/1520754.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d3c.bin
d71f2bcdc533a11d1cb0ef420073cbd2523b96a811da7a8e1126b801be62864e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3C 4812 bytes
font_01_sfnt_off00006d7b.bin
be57923f90f77026bb4ed873bb672e55ad1a7669fe2c57abfae02d98bbaafe08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7B 10876 bytes

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