Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff0d7ef5bc2d32fe…

MALICIOUS

PDF

36.9 KB Created: 2020-05-07 05:45:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 00889b5dd6b4ad9984555576c07c05b1 SHA-1: 34e3a601c8e07406978a19fb016c8b6d2c479448 SHA-256: ff0d7ef5bc2d32fea6d891b7e61c204666ff1d92541a72799823b38f4b22e3c0
92 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body mentions 'Arena of Valor guide app', suggesting a lure to attract users. The PDF_SEO_LINK_FARM heuristic firing indicates a large number of external links, many of which are numeric or slug-based, further supporting the SEO poisoning or link farm attack pattern. The ML_NYX_PDF_MALICIOUS heuristic strongly suggests malicious intent.

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://juliejesternewman.com/uploads/1/3/0/2/130289690/130289690.html#arena+of+valor+guide+app
    • http://synecticteaming.org/uploads/1/3/0/2/130272513/1c1bca.pdf
    • http://skypikeproductions.com/uploads/1/3/0/2/130273733/331406c108.pdf
    • http://kinseyandcompany.org/uploads/1/3/0/6/130639521/847858.pdf
    • http://lospublishing.com/uploads/1/3/0/6/130620845/1355cd2d4e80b14.pdf
    • http://transark.us/uploads/1/3/0/7/130776647/difulizapeduxaxej.pdf
    • http://meinegl�ckswelle.de/uploads/1/3/0/5/130551994/bawux.pdf
    • http://studio10glamour.com/uploads/1/3/0/5/130541313/fexujamulo.pdf
    • http://oxygentraveladvisors.com/uploads/1/3/1/3/131398459/813184.pdf
    • http://westmonroegolfcarts.com/uploads/1/3/0/2/130289543/luzazawajet-pazutidifaduv-maziwir.pdf
    • http://loren-brown.com/uploads/1/3/0/7/130776592/nuluxijekanivan-fodevipamep-timizi.pdf
    • http://start-right.us/uploads/1/3/1/3/131398491/8b1c456.pdf
    • http://studiobyariver.com/uploads/1/3/0/4/130483509/2098042.pdf
    • http://michelejoyjewelry.com/uploads/1/3/1/1/131164266/60c9e6317.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off000063b3.bin
579da53c58ae20b226e3926cebda8dbadfa721a210b2da58e03c3e50feada4b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B3 11112 bytes

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