Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6f888e9e4c2dc30…

MALICIOUS

PDF

46.8 KB Created: 2020-03-29 15:18:41 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b7fe59281e9cac459b61adb0b5bc8ec6 SHA-1: 6d8cfb206c23972c31db4203e2ca3607d64e1d1a SHA-256: d6f888e9e4c2dc305bf4763b65903fd5bde5a0fc974931e3559de27184085d6a
92 Risk Score

Malware Insights

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

The PDF contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially corrupted, contains text related to a French-Spanish dictionary and references the wkhtmltopdf tool, suggesting a lure to a fake resource. The primary intent appears to be redirecting users to malicious websites hosted on these domains, likely for further payload delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://74-123-77-115.mgwnet.com/uploads/1/3/0/6/130639023/130639023.html#diccionario+franc%C3%A9s+espa%C3%B1ol+online+larousse
    • http://prime-windows.com/uploads/1/3/0/2/130270752/1f2ec29c4d568.pdf
    • http://laurikopo.com/uploads/1/3/0/2/130274330/3434123.pdf
    • http://johncampbellprofile.com/uploads/1/3/0/3/130324207/mezijes.pdf
    • http://spatzen.hu/uploads/1/3/1/3/131381681/muwilosorebixeg.pdf
    • http://mycpmc.com/uploads/1/3/0/5/130539049/fd9310dc8a8.pdf
    • http://azeriwithus.com/uploads/1/3/0/4/130490338/6679598.pdf
    • http://peachtreehome.net/uploads/1/3/0/6/130604028/damizubapun-zelap.pdf
    • http://kylebragger.net/uploads/1/3/0/7/130738890/nofuzigaduzo-domunobo.pdf
    • http://pottershouse.cc/uploads/1/3/0/5/130551198/253cc3bb649b6.pdf
    • http://prettycreationsllc.com/uploads/1/3/1/0/131070723/mipukibikevenipavon.pdf
    • http://drjeffscott.com/uploads/1/3/0/5/130551067/zuvafuvur-pojito-lugefavaxa.pdf
    • http://beaumontflooring.com/uploads/1/3/0/5/130588475/vekalodapebezilamapo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b4b.bin
5ba0593c181c2ffb9228eb4a84b87034a81f3504aa00980a389ee6f05d9b30e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B4B 9320 bytes
font_01_sfnt_off00008cb7.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB7 2652 bytes
font_02_sfnt_off00009620.bin
b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9620 16036 bytes

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