Cobalt Stike Beacon Detected – 45[.]76[.]97[.]205:443

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The Information provided at the time of posting was detected as “Cobalt Strike”. Depending on when you are viewing this article, it may no longer be the case and could be determined as being a false positive. Please do your own additional validation. – RedPacket Security

TimeStamp 2021-11-09T09:47:16.200871

Cobalt Strike
Cobalt Strike

General Information

721152844
Cloud ProviderVultr
Cloud RegionN/A
ServiceN/A
Domainsvultr[.]com
Hostnames45[.]76[.]97[.]205[.]vultr[.]com
HTTP Host45[.]76[.]97[.]205
ISPThe Constant Company, LLC
ORGVultr Holdings, LLC
OSN/A
HTTPN/A
HTTP HTML HASHN/A
HTTP LOCATION/
HTTP REDIRECTS
HTTP ROBOTSN/A
HTTP ROBOTS HASHN/A
HTTP SECURITY.TXTN/A
HTTP SECURITY.TXT HASHN/A
HTTP SERVERN/A
HTTP SITEMAPN/A
HTTP SITEMAP HASHN/A
HTTP TITLEN/A
LOCATION (AREA CODE)N/A
LOCATION (CITY)Tokyo
LOCATION (COUNTRY CODE)JP
LOCATION (COUNTRY NAME)Japan
LOCATION (LATITUDE)35.6895
LOCATION (LONGITUDE)139.69171
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)03bf8e66a1c53f932b824c0529bdcd502b61c6f7
SSL ISSUED20211106131639Z
SSL EXPIRES20221106131639Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGScloud, self-signed


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientHost: 45[.]76[.]97[.]205, Accept: */*, Cookie: MicrosoftApplicationsTelemetryDeviceId=95c18d8-4dce9854;ClientId=1C0F6C5D910F9;MSPAuth=3EkAjDKjI;xid=730bf7;wla42=MktXEcm, wa, path=/calendar
http-post.clientHost: 45[.]76[.]97[.]205, Accept: */*, wa, wla42=, xid=730bf7;, MSPAuth=3EkAjDKjI;, ClientId=1C0F6C5D910F9;, MicrosoftApplicationsTelemetryDeviceId=95c18d8-4dce9854;, Cookie
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon Jitter38
dns-beacon.strategy_fail_seconds-1
dns-beacon.strategy_rotate_seconds-1
dns-beacon.strategy_fail_x-1
HTTP GET URI45[.]76[.]97[.]205,/owa/cm4r8yYfHh–yKwX8LCYGmhiLW80VP2Ya,172[.]104[.]54[.]70,/owa/cm4r8yYfHh–yKwX8LCYGmhiLW80VP2Ya
HTTP POST URI/owa/ddMhXfiaeYKFHCOzRtMbpPULm5VLL5a
Max GET Size1398102
Port443
post-ex.spawnto_x64%windir%\sysnative\logman[.]exe
post-ex.spawnto_x86%windir%\syswow64\logman[.]exe
process-inject.startrwx64
process-inject.userwx32
process-inject.allocator1
proxy.behavior2 (Use IE settings)
sleeptime3000
useragent_headerMozilla/5.0 (Windows NT 6.3; Win64; x64; Trident/7.0; ASTE; rv:11.0) like Gecko
uses_cookies1
process-inject.executentdll.dll:RtlUserThreadStart, NtQueueApcThread-s, SetThreadContext, CreateRemoteThread, kernel32.dll:LoadLibraryA, RtlCreateUserThread
Watermark1234567890
Beacon Stage Cleanup1
Available for Amazon Prime