Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6de41012ddc7c5b…

MALICIOUS

PDF

35.5 KB Created: 2020-04-25 07:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5be1683ba30622a9df031b816664cf20 SHA-1: b4e00805f355fb06468f4c941810243a734590d1 SHA-256: e6de41012ddc7c5b526abb981ab7d193a57fdd52a4945213883b540dba6ecade
70 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files on various domains, suggesting a link farm for SEO manipulation or to host malicious content. One specific URL, http://chichesterfootandankle.org/uploads/1/3/0/3/130323097/130323097.html#anime+battle+mugen+android, is directly embedded in the document body. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick the user into clicking a link.

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://chichesterfootandankle.org/uploads/1/3/0/3/130323097/130323097.html#anime+battle+mugen+android
    • http://stcsolutionsllc.com/uploads/1/3/0/8/130874608/361247.pdf
    • http://dana-the-explorer.com/uploads/1/3/0/6/130604351/1785780.pdf
    • http://jacobmastudio.com/uploads/1/3/0/6/130622084/bimifo.pdf
    • http://jesus-my-savior.com/uploads/1/3/0/7/130740180/a661f0.pdf
    • http://joshrogers.me/uploads/1/3/0/5/130539403/savejanal.pdf
    • http://aplusnursingservicesinc.com/uploads/1/3/1/4/131407067/morevisub_sawavibi.pdf
    • http://mysolovacations.com/uploads/1/3/1/3/131380848/mupomagurakepaxebu.pdf
    • http://shorejunction.org/uploads/1/3/0/7/130738625/nowesasidob.pdf
    • http://joshrogers.me
    • 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_off000063ae.bin
92e634cb439fed793c175fdcf9c0c7603fdc62bf49abe14f98aca470aca4a1e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63AE 8644 bytes

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