Cobalt Stike Beacon Detected – 78[.]128[.]112[.]131:443

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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 2021-11-16T01:41:34.794772

Cobalt Strike
Cobalt Strike

General Information

2.6346890526372254e+41
Cloud Provider
Cloud Region
Service
Domains4vendeta[.]com
Hostnamesip-112-131[.]4vendeta[.]com
HTTP Host78[.]128[.]112[.]131
ISPBalkan Internet Exchange Ltd
ORGLir.bg EOOD
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 SERVERApache
HTTP SITEMAPN/A
HTTP SITEMAP HASHN/A
HTTP TITLEN/A
LOCATION (AREA CODE)N/A
LOCATION (CITY)Sofia
LOCATION (COUNTRY CODE)BG
LOCATION (COUNTRY NAME)Bulgaria
LOCATION (LATITUDE)42.69751
LOCATION (LONGITUDE)23.32415
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)3b48ed3eae4ae1557382fceccc114483867e5abc
SSL ISSUED20211105172828Z
SSL EXPIRES20220203172827Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGS


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientAccept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Referer: http://code[.]jquery[.]com/, Accept-Encoding: gzip, deflate, __cfduid=, Cookie
http-post.clientAccept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Referer: http://code[.]jquery[.]com/, Accept-Encoding: gzip, deflate, __cfduid
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon Jitter37
dns-beacon.strategy_fail_seconds-1
dns-beacon.strategy_rotate_seconds-1
dns-beacon.strategy_fail_x-1
HTTP GET URIinvestmentreaudit[.]com,/jquery-3[.]3[.]1[.]min[.]js,78[.]128[.]112[.]131,/jquery-3[.]3[.]1[.]min[.]js
HTTP POST URI/jquery-3.3.2.min.js
Max GET Size1403644
Port443
post-ex.spawnto_x64%windir%\sysnative\dllhost[.]exe
post-ex.spawnto_x86%windir%\syswow64\dllhost[.]exe
process-inject.startrwx4
process-inject.userwx32
process-inject.allocator1
proxy.behavior2 (Use IE settings)
sleeptime45000
useragent_headerMozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
uses_cookies1
process-inject.executentdll:RtlUserThreadStart, CreateThread, NtQueueApcThread-s, CreateRemoteThread, RtlCreateUserThread
WatermarkN/A
Beacon Stage Cleanup1
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