General
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Target
c0917d27811cdd7a7c1267f87cf6135915adbfc7fd4a3f6e74998eef74fae31e
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Size
432KB
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Sample
220520-fs92hseabm
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MD5
937a447b796d4ed07f668c09a18e35a8
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SHA1
bd868b33a905906f46bee0ed427e064313d7b6ef
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SHA256
c0917d27811cdd7a7c1267f87cf6135915adbfc7fd4a3f6e74998eef74fae31e
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SHA512
8e3f6d69ee373dc8ca8d74d8449c0289a6622507123d4133df2d6fd8e51687314c195004fc82502960327aeca0662fc59819c813b94b596b2eea56fa66594fb3
Static task
static1
Behavioral task
behavioral1
Sample
Ekstre.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Ekstre.exe
Resource
win10v2004-20220414-en
Malware Config
Extracted
C:\Users\Admin\AppData\Local\781F780B4E\Log.txt
masslogger
Targets
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Target
Ekstre.exe
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Size
1.2MB
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MD5
4fa8f3fb34c79b408d7c511c892358cf
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SHA1
eded4cc6941f2ebf7d9b08bc98d05190c4d9e054
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SHA256
9343011118ad09e9a63a24adb5cc08f406ffc927230b1be998cb263ebf23eedd
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SHA512
832d9aaa4806edfdafba5fbcd6b46be87a9432ba5f56328b8254a8a8c2d0d5176a0eb2570c3fa36c0e0a94c27f9d28165e824bcd7249defabac6454b963633a8
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main Payload
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MassLogger log file
Detects a log file produced by MassLogger.
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Executes dropped EXE
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL
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Accesses Microsoft Outlook profiles
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Adds Run key to start application
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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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Suspicious use of SetThreadContext
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