Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d544115e39c3eb9…

MALICIOUS

PDF

56.9 KB Created: 2020-04-03 08:50:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3c85371be028fb22295475184d3ab178 SHA-1: 58baeb6658a8196e2096502f195509e8fddb4ec8 SHA-256: 8d544115e39c3eb98a7fee98d0a7a7f9f286707dba82b7d276088173882d9a11
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to distribute malicious content. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates that the document contains instructions for executing Windows scripting tools, suggesting a potential for further malicious activity. The primary intent appears to be directing users to a network of linked PDFs, possibly as a lure or to spread malware.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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://2020blue.org/uploads/1/3/0/5/130588607/130588607.html#test+sindrome+del+ni%C3%B1o+emperador+libro+pdf
    • http://palletguys.ca/uploads/1/3/0/9/130969183/999118.pdf
    • http://foozhealth.com/uploads/1/3/0/6/130639107/49f59d22c3f8.pdf
    • http://blinkofaneyehealng.com/uploads/1/3/1/1/131163876/83be68c0.pdf
    • http://fnmiec.ca/uploads/1/3/0/7/130776895/7831996.pdf
    • http://silvervigor.com/uploads/1/3/0/6/130604349/3722537.pdf
    • http://thecurlychelle.com/uploads/1/3/0/3/130313529/lodijel.pdf
    • http://fordlanguageandreadingcenter.com/uploads/1/3/0/5/130551049/ef20fb5d489d.pdf
    • http://visitmychurch.org/uploads/1/3/0/5/130545429/genamuwofoxo.pdf
    • http://clppty.com/uploads/1/3/0/6/130604359/wikunivali.pdf
    • http://ckeinsurance.net/uploads/1/3/0/2/130289237/9792260.pdf
    • http://technicalassemblysystemsdoo.com/uploads/1/3/1/1/131164534/4865228.pdf
    • http://goodnesstogeaux.com/uploads/1/3/0/5/130544190/sawegovodalidu.pdf
    • http://squatmovie.com/uploads/1/3/0/7/130740124/sibexirezodinaki.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_off0000b3ad.bin
34b4e37bc448299bc5189ff6ee929dc77bccae63cb609ce7cc45bc1e25d79bdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB3AD 8968 bytes

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