Cobalt Stike Beacon Detected – 137[.]184[.]143[.]170:443

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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 2021-11-16T03:33:14.541162

Cobalt Strike
Cobalt Strike

General Information

4.232042088650521e+41
Cloud ProviderDigitalOcean
Cloud Regionus-nj
ServiceN/A
DomainsN/A
HostnamesN/A
HTTP Host137[.]184[.]143[.]170
ISPDigitalOcean, LLC
ORGDigitalOcean, 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)North Bergen
LOCATION (COUNTRY CODE)US
LOCATION (COUNTRY NAME)United States
LOCATION (LATITUDE)40.80427
LOCATION (LONGITUDE)-74.01208
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)7def49ff2fd3e4834ae4b3f25f42446d2a541565
SSL ISSUED20211001135901Z
SSL EXPIRES20211230135900Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGScloud


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientutmac=UA-2300986-2, utmcn=1, utmcs=ISO-8859-1, utmsr=1280×1024, utmsc=32-bit, utmul=en-US, __utma, utmcc
http-post.clientContent-Type: application/octet-stream, UA-890, -2, utmac, utmcs=ISO-8859-1, utmsr=1280×1024, utmsc=32-bit, utmul=en-US
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon Jitter31
dns-beacon.strategy_fail_seconds-1
dns-beacon.strategy_rotate_seconds-1
dns-beacon.strategy_fail_x-1
HTTP GET URIrs1[.]us,/__utm[.]gif
HTTP POST URI/___utm.gif
Max GET Size1398144
Port443
post-ex.spawnto_x64%windir%\sysnative\svchost[.]exe -k netsvcs
post-ex.spawnto_x86%windir%\syswow64\svchost[.]exe -k netsvcs
process-inject.startrwx64
process-inject.userwx32
process-inject.allocator1
proxy.behavior2 (Use IE settings)
sleeptime60000
useragent_headerMozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
uses_cookiesN/A
process-inject.executentdll:RtlUserThreadStart, CreateThread, NtQueueApcThread-s, CreateRemoteThread, RtlCreateUserThread
Watermark28779199
Beacon Stage Cleanup1
Available for Amazon Prime