Malicious PDF — malware analysis report

Static analysis result for SHA-256 a75feb0dbbda5a9e…

MALICIOUS

PDF

37.8 KB Created: 2020-04-06 03:10:05 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 831de83774b8cf04563d03b0170bf84b SHA-1: 0d262bb5aa3191a050680fcd6250ffd638d156e9 SHA-256: a75feb0dbbda5a9e6d0346e4fa9ef1be1f870c812b39e7f02a42c2a262b9b9dc
62 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to a heuristic firing indicating a large farm of external links. The document body contains numerous URLs, many of which appear to be part of a link farm designed to host further malicious content. The primary intent appears to be directing users to potentially harmful websites.

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://yourchairmansclub.us/uploads/1/3/0/8/130874332/130874332.html#c+malloc+in+shared+library
    • http://chantalemerchant.com/uploads/1/3/0/6/130640053/dcd42995.pdf
    • http://ryersonassociates.com/uploads/1/3/0/9/130969278/fotove.pdf
    • http://kelciemeehan.com/uploads/1/3/0/4/130478433/finaledevoxufubi.pdf
    • http://medicaltourism.tips/uploads/1/3/0/7/130739324/3129971.pdf
    • http://sharetact.com/uploads/1/3/0/2/130289290/jabor-vetubinid-buxuti-xixefidukop.pdf
    • http://longnecklagooneec.com/uploads/1/3/0/2/130289570/69d76143a7.pdf
    • http://adonprgp.com/uploads/1/3/0/6/130605156/zuvero.pdf
    • http://barrasfordgarage.com/uploads/1/3/0/6/130621596/nozigizoxozodibejopi.pdf
    • http://work4utopialtd.com/uploads/1/3/0/2/130274338/xaride.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_off000068d5.bin
51a27b2f508b92c5fe8485073a9979b8392811876a6c58d1240930235ffd9566		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68D5 8800 bytes

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