Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ff1e322a50e515…

MALICIOUS

PDF

42.4 KB Created: 2020-06-20 00:50:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68217a672ac050f554b962eb38102337 SHA-1: ba545f7795bd6ac23caf01fecb7c0feaef34f566 SHA-256: 94ff1e322a50e515ca49a61588a7d6cdc11a44d5faa35c9e2bb0346bc9c4cbeb
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm or a redirection mechanism designed to obscure the ultimate destination. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this is a malicious pattern. The document body contains text related to 'cardio exercises' which is likely a lure to encourage users to interact with the embedded links.

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://tradelaneservices.com/uploads/1/3/1/4/131453965/131453965.html#good+cardio+exercises+for+indoors
    • http://mail.wv469.com/uploads/1/3/1/3/131398104/tabem.pdf
    • http://encore00066.voyagerwebsites.com/uploads/1/3/1/3/131398077/pedef.pdf
    • http://vlassis-caniaris.com/uploads/1/3/0/7/130776158/497cb4.pdf
    • http://poubellepublishing.com/uploads/1/3/1/4/131455543/7517051.pdf
    • http://my-site-solutions.com/uploads/1/3/0/7/130776420/69eaa3b082dc.pdf
    • http://mta.safehavenworship.com/uploads/1/3/0/7/130740492/kuxavanu-kijunezavo-zifab.pdf
    • http://mail.onlythemotivated.com/uploads/1/3/0/6/130604322/laxinu-zonoj-mitetigipugi-fugumeri.pdf
    • http://nndetailing.com/uploads/1/3/2/3/132303366/rodusibaralazux_sisirilenaju.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a7d.bin
6ab797962f32ce26c8998ae8e1cd84c144cccefa5c74e180ff4112e6804f6773		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7D 4792 bytes
font_01_sfnt_off00007ad0.bin
30511d72106c14f740110c5bbd38934549d6d425dba8f46456ade728e5c6a454		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD0 10216 bytes

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