Malicious PDF — malware analysis report

Static analysis result for SHA-256 c269f149f6b76ca8…

MALICIOUS

PDF

49.4 KB Created: 2020-03-20 03:01:55 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4f34d3f31a124fc54c98782465279ec7 SHA-1: 8e4a1e88e11863678f178f130cc614f0a2cb6bc7 SHA-256: c269f149f6b76ca8c84ccb098e88504aa713bb05b7b2edf3edec2350766b0a6a
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 SEO poisoning tactic. The document body contains text related to 'Prentice hall foundations geometry pdf', likely a lure to make the document appear legitimate. No scripts were extracted from this sample.

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://lifteens.com/uploads/1/3/0/3/130324440/130324440.html#prentice+hall+foundations+geometry+pdf
    • http://kehonsielu.com/uploads/1/3/0/3/130323748/xavuwesaniwima-jowon.pdf
    • http://webdisk.videoray.no/uploads/1/3/0/4/130489627/3284225.pdf
    • http://hostmaster.iamastick.com/uploads/1/3/0/7/130739316/kubedetaxoxe.pdf
    • http://geigertronics.com/uploads/1/3/0/5/130589328/966367.pdf
    • http://www.jjeng120.com/uploads/1/3/0/6/130621916/7033579.pdf
    • http://www.simplysupportive.net/uploads/1/3/0/7/130738705/6820485.pdf
    • http://meteorite-village-happytour.com/uploads/1/3/0/7/130739525/8038708.pdf
    • http://doverlions.org.uk/uploads/1/3/0/2/130287513/5532616.pdf
    • http://ealawrayauthor.com/uploads/1/3/0/7/130775889/zobon.pdf
    • http://ambriage.org/uploads/1/3/0/7/130775063/7f953fe9b3.pdf
    • http://gateoflifeac.com/uploads/1/3/0/7/130776413/zuvaloxanatalum.pdf
    • http://florencesaude.com/uploads/1/3/0/4/130476619/6970888.pdf
    • http://shootouthoops.com/uploads/1/3/0/4/130483140/wenixu.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_off00007fd7.bin
14c678e380abefcf6d0168f1b84430bf17ed1c60bd13b1313a3e9f4079466641		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD7 8856 bytes
font_01_sfnt_off0000a18a.bin
c6c28444bcd94379862b6cc7f8cfcdbcdaeb026857ccdb099d87626a561054a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA18A 16092 bytes

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