General
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Target
Stellar.exe
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Size
6.1MB
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Sample
250105-zjmdmsvrds
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MD5
f034b97fd20e082477a3bc36d941cbf4
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SHA1
6e1b18afe72f9060983cb53bcf2e858b7517e0aa
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SHA256
7c7bd6b6eae68733dba57de0fd87f64efa1b95a574d62a878296d87f9512d0d7
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SHA512
dfa3b17102c47577e07f5bd0a585f85d558b8eaa54bc783342bd6f81a14b861fd260674e039abf16e39d4dc7a9c4a6b352c3f53b64086c00d624727cda43cb9f
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SSDEEP
196608:RaiSkSIlLTUcwti7TQl2NgVg01MWAXAkuujCPX9YG9he5GnQCAJKN:QkSopwtQQl2aOtXADu8X9Y95GQLJ
Static task
static1
Behavioral task
behavioral1
Sample
Stellar.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
Stellar.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
asyncrat
1.0.7
Default
51.89.44.68:8848
etb3t1tr5n
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delay
1
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install
true
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install_file
svchost.exe
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install_folder
%Temp%
Targets
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Target
Stellar.exe
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Size
6.1MB
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MD5
f034b97fd20e082477a3bc36d941cbf4
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SHA1
6e1b18afe72f9060983cb53bcf2e858b7517e0aa
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SHA256
7c7bd6b6eae68733dba57de0fd87f64efa1b95a574d62a878296d87f9512d0d7
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SHA512
dfa3b17102c47577e07f5bd0a585f85d558b8eaa54bc783342bd6f81a14b861fd260674e039abf16e39d4dc7a9c4a6b352c3f53b64086c00d624727cda43cb9f
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SSDEEP
196608:RaiSkSIlLTUcwti7TQl2NgVg01MWAXAkuujCPX9YG9he5GnQCAJKN:QkSopwtQQl2aOtXADu8X9Y95GQLJ
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Asyncrat family
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Async RAT payload
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Downloads MZ/PE file
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Uses browser remote debugging
Can be used control the browser and steal sensitive information such as credentials and session cookies.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Accesses Microsoft Outlook profiles
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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MITRE ATT&CK Enterprise v15
Persistence
Event Triggered Execution
1Netsh Helper DLL
1Modify Authentication Process
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Modify Authentication Process
1Steal Web Session Cookie
1Unsecured Credentials
1Credentials In Files
1