Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f95e4e4b9b14911…

MALICIOUS

PDF

44.7 KB Created: 2020-04-14 03:44:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3eb871bb5f682a73178fbe726f2bf158 SHA-1: 41b0f6da78eec0efe940ec969d91f2a8c9cb7e38 SHA-256: 9f95e4e4b9b14911f15139752197ea503acd163bf1924ac63e99a67b9f46bc12
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a mass of external links, masquerading as a memorial service notice template, to likely redirect users to malicious content. The heuristic PDF_SEO_LINK_FARM indicates a large number of generated links, and PDF_URI points to a specific external URL. The document body is heavily obfuscated, preventing a deeper analysis of its specific content or intent beyond the link farm.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://dmtrade.eu/uploads/1/3/0/7/130776316/130776316.html#memorial+service+notice+template
    • http://pepemoriba.org/uploads/1/3/0/2/130271128/a914e79.pdf
    • http://megroa.com/uploads/1/3/1/3/131380755/98e73a42edd3c7.pdf
    • http://wholesalekratom.us/uploads/1/3/0/5/130541465/b6fae33531cb3f.pdf
    • http://nextgensecuritysolution.com/uploads/1/3/0/6/130620781/178c07a1.pdf
    • http://legendzofocala.com/uploads/1/3/1/3/131379824/zofet_dalumumodosol.pdf
    • http://kimberleyhodges.com/uploads/1/3/0/3/130379928/6b378.pdf
    • http://sevensistersfarm.net/uploads/1/3/0/6/130605078/dusezuvafazal.pdf
    • http://bodymindcoffee.com/uploads/1/3/0/6/130639510/dabipij_ripozipajukoj_badupa.pdf
    • http://thefestivetree.in/uploads/1/3/1/4/131453793/makisalezaw.pdf
    • http://theyearofradicalchange.com/uploads/1/3/0/8/130874305/8015612.pdf
    • http://ucscustombuilders.com/uploads/1/3/0/6/130605442/mugife-nasumijin-jizexevo-vejavologimipat.pdf
    • http://apexturnovers.com/uploads/1/3/0/5/130539455/a313cbdb1c8e0.pdf
    • http://shubla.com/uploads/1/3/1/4/131453146/lelegu.pdf
    • http://thefestivetree.in/uploads/1/3/1/4/
    • 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_off00007c82.bin
bd1105106aab0cb59746650300c842558cc99b29e7f51c07ceeb55836cd68494		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C82 7876 bytes
font_01_sfnt_off00009b17.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B17 2616 bytes

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