Malicious PDF — malware analysis report

Static analysis result for SHA-256 b07b38bd54fa3067…

MALICIOUS

PDF

40.2 KB Created: 2020-06-16 18:47:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 972cbfb8c847941e8e280b864ab041d2 SHA-1: 0fd4c440489384a16ef241a25d2976c02fafbfb1 SHA-256: b07b38bd54fa3067a15c0f2503ece2002d62dca24042af68b44c3687441b1b76
70 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a link farm, indicating a large number of external links pointing to various domains. The document body, though partially corrupted, contains the text 'Wedding at cana worksheet' and lists numerous URLs, suggesting a lure to a network of SEO-optimized content. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further supports the idea that the document is designed to trick users into clicking links.

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://barefootbusinessbloggers.com/uploads/1/3/1/4/131438847/131438847.html#wedding+at+cana+worksheet
    • http://jessbennettillustration.com/uploads/1/3/0/6/130620976/7599253.pdf
    • http://3strandedcord.com/uploads/1/3/2/3/132302802/24cd30442.pdf
    • http://thorswiftphotography.com/uploads/1/3/0/4/130476699/4941860.pdf
    • http://agreetogrow.com/uploads/1/3/0/3/130379429/b346efeb5b9c.pdf
    • http://mdfitnessconsulting.com/uploads/1/3/0/7/130740193/1470970.pdf
    • http://craftyourvoice.com/uploads/1/3/1/3/131384484/3300333.pdf
    • http://katrikanerva.com/uploads/1/3/0/7/130740477/1398574.pdf
    • http://hostmaster.medevalserv.com/uploads/1/3/0/6/130620773/2666251.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_off00006094.bin
0ed2afe6a636166bb1578eb03932cf91f1685f90556ba44736a23c6fe52f0440		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6094 5124 bytes
font_01_sfnt_off0000720a.bin
c49fa775768db2d8d4d00634298f8b7bbebbb5fdd436f167fa8025b5f4acb7d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x720A 10356 bytes

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