Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3399f5cd4ca8a94…

MALICIOUS

PDF

39.5 KB Created: 2020-05-22 10:53:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b0ec4cbfc1ea2990210e4fd255feadb SHA-1: 86828c0de25549bf15a31e138a9ad677ea03bc55 SHA-256: c3399f5cd4ca8a945a6d60d2c99a80ff99dd85cf76ceec46c50f9bc93a59808a
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution mechanism. The document body contains fragmented text related to parts and international interchange, along with authoring application details, but does not provide a clear narrative. No scripts were extracted from this sample. The primary attack pattern involves directing users to a multitude of external resources.

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://abedesignstudio.com/uploads/1/3/1/4/131453336/131453336.html#ford+to+international+parts+intercha
    • http://mobull.net/uploads/1/3/1/0/131070590/xapovazavovuvalewigo.pdf
    • http://judoc-cf.com/uploads/1/3/0/6/130603834/tamuxuwixovom_kupotidubafuf_tudarubawi_kokuk.pdf
    • http://shopbyrc.com/uploads/1/3/1/4/131454264/sinuzidanelepuju.pdf
    • http://pwrpitching.com/uploads/1/3/1/6/131606056/vevuguni.pdf
    • http://creativespeechcompany.com/uploads/1/3/1/0/131070357/wuliwilupebibuk-somezelirevup-fedevakozudo-pesonevalopabap.pdf
    • http://dansgeneralstore.ca/uploads/1/3/0/6/130604048/sejufix-navidada-rovulepifud.pdf
    • http://braasch-sicherheit.com/uploads/1/3/0/3/130379769/vezenogakud_dorajekasaz_sitatof_mofifod.pdf
    • http://heartsgreen.com/uploads/1/3/0/8/130874278/poxiduwetefew.pdf
    • http://millenniallust.com/uploads/1/3/0/3/130313378/250129.pdf
    • http://cityvoicesstoke.org.uk/uploads/1/3/0/5/130540284/9665313.pdf
    • http://triaddle.org/uploads/1/3/1/8/131856725/178421dc5b10dcc.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_off00006ebf.bin
62b2fd4b349bbb041db0a9cf67683c29a387f0f02303375a7bb574d64494619c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBF 10616 bytes

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