Malicious PDF — malware analysis report

Static analysis result for SHA-256 c41c0695c38bb43d…

MALICIOUS

PDF

41.1 KB Created: 2020-05-02 19:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 01fdf49278cf8b8c06bc9fdfb491e78c SHA-1: 454687207778d06337a7f8f56c6961f5446279aa SHA-256: c41c0695c38bb43dac9c2b4027c92c3d2241d2329f9d6c49f94d4edd2e249359
70 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDF files hosted on various domains, indicative of a link farm or a phishing lure. The presence of a 'download button' heuristic further suggests an attempt to trick the user into downloading malicious content. The primary URL http://secure-pof.com/uploads/1/3/1/4/131407214/131407214.html#cute+cartoon+font+free is likely the initial landing page for this campaign.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://secure-pof.com/uploads/1/3/1/4/131407214/131407214.html#cute+cartoon+font+free
    • http://organikthredz.com/uploads/1/3/0/7/130739034/sobad_xapar.pdf
    • http://charming2atee.net/uploads/1/3/0/6/130620801/pegamoburajo.pdf
    • http://ricksmobilerv.com/uploads/1/3/0/4/130488500/cf6b61.pdf
    • http://safetyharborroofing.com/uploads/1/3/0/6/130620313/8158609.pdf
    • http://spindolyns.com/uploads/1/3/0/5/130551675/4321016.pdf
    • http://tspicey.com/uploads/1/3/0/9/130969477/xosudomenekiv_tinon_saxepuj.pdf
    • http://bluebirdinspectors.com/uploads/1/3/0/3/130313323/6346639.pdf
    • http://capitalcommercialpainting.com/uploads/1/3/0/5/130588543/973118df5.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_off00007302.bin
6a9f33ce0a064bd521dd0f008f7934449f92aa2991818fb8aed19da10d546998		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7302 10372 bytes

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