Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa0eb7d638861f65…

MALICIOUS

PDF

38.6 KB Created: 2020-03-27 13:27:58 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 98fcde55a230e0814a3ee9baa9cbfcbf SHA-1: 3946e7593e24504cddb3470fd7b605548ce7ed34 SHA-256: fa0eb7d638861f6531b2402de0a90ab93490fb7ebed583446a24d3dd1626f417
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary purpose appears to be directing users to a variety of websites, potentially for SEO manipulation or to host further malicious content. The ML classifier strongly indicated maliciousness, and the presence of numerous unknown-reputation URLs supports this assessment.

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://treasures4yourheart.com/uploads/1/3/0/7/130776730/130776730.html#que+son+las+necesidades+fisiologicas+de+maslow
    • http://sheri-johnson.com/uploads/1/3/0/9/130969065/nekofadokun-tivuno-xasax-mizulubuvarutov.pdf
    • http://aufproductions.com/uploads/1/3/0/5/130546574/rozet_janewudekagek_begunowev.pdf
    • http://games4android.de/uploads/1/3/0/3/130313158/28a02ebc.pdf
    • http://cart.elkethoms.com/uploads/1/3/0/6/130605186/2044919.pdf
    • http://womenswellness.club/uploads/1/3/0/6/130639827/e10686.pdf
    • http://drrichardarcher.com/uploads/1/3/0/5/130590133/lutatokew.pdf
    • http://dashanren.com/uploads/1/3/0/6/130621569/xibitonijewo-tipujot.pdf
    • http://disspat.com/uploads/1/3/0/4/130493037/gubovodukoxo-nafevakozofe.pdf
    • http://www.static-lineapparel.com/uploads/1/3/0/6/130603811/165596.pdf
    • http://www.didodey.vip/uploads/1/3/0/7/130739994/momowew-lagijifo.pdf
    • http://mushroom-home.com/uploads/1/3/0/7/130738837/bazosamisexogav.pdf
    • http://iamreallife.org/uploads/1/3/0/4/130476661/6830767.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b0d.bin
d1b467286e47e4e2c975ed94336b37ab15b9f5f66bf9f128d40ebbc6d0ff49e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0D 8940 bytes

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