Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d020d87ea0183a…

MALICIOUS

PDF

31.3 KB Created: 2020-05-13 15:03:29 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6d657e3608daf9d572c2867e3a30d067 SHA-1: 9448a39704502af33607a387493eafb53b05e5be SHA-256: 47d020d87ea0183ac0f490c96e33c4c3d575173de73810bbafc85db4d6d4b2a9
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links to various domains, many of which appear to be part of a link farm. The document body contains text related to 'Forecast sheet excel how to use' and includes several of these external URLs. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a malicious intent to redirect users to potentially harmful content or to manipulate search engine rankings. 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://un-guilty.com/uploads/1/3/0/2/130288661/130288661.html#forecast+sheet+excel+how+to+use
    • http://bingemate.net/uploads/1/3/1/4/131406659/roles.pdf
    • http://innesskirkna.com/uploads/1/3/0/4/130483751/595213.pdf
    • http://virginisu.com/uploads/1/3/1/1/131164439/jojididobobaxit.pdf
    • http://21stdigitalarmory.com/uploads/1/3/0/6/130639037/7625263.pdf
    • http://simplysoinc.com/uploads/1/3/0/5/130546183/d3d9bf8b5.pdf
    • http://yourdowntownmarket.com/uploads/1/3/0/7/130775889/201875.pdf
    • http://commonrefresh.com/uploads/1/3/0/5/130588710/edb3c.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_off00005148.bin
5d885acba1e168084593285a7e4090acb60210fbaaf6b0049d7e0e69c3a78f61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5148 9752 bytes

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