General
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Target
0e3be9658e97e3ea844e0d818a0f4731573ec5affe4f42e8d244e0c91717df68
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Size
501KB
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Sample
240615-m3hhks1hmk
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MD5
8b662719e44ab11419fe3e1d7e96cc03
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SHA1
af6c092ff304cd5131cc0295fa8b51a572af5388
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SHA256
0e3be9658e97e3ea844e0d818a0f4731573ec5affe4f42e8d244e0c91717df68
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SHA512
3a441802fad9b3eafe327d6239cb8891551df04ccf555658d8855fbbcdacda3abefc9e627b3a59cf28de9681e348d2cc749cd63514721c9b86e0519ceb57309a
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SSDEEP
12288:iSrH22qla5w/yXbxixFcRMFQIkeNCSo9mbX:iSrH0MW/IbxiYCQIkeNCSB
Static task
static1
Behavioral task
behavioral1
Sample
0e3be9658e97e3ea844e0d818a0f4731573ec5affe4f42e8d244e0c91717df68.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
0e3be9658e97e3ea844e0d818a0f4731573ec5affe4f42e8d244e0c91717df68.exe
Resource
win11-20240508-en
Malware Config
Extracted
asyncrat
0.5.7B
217.64.31.3:8808
217.64.31.3:8437
Windows System Guard Runtime
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delay
3
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install
false
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install_file
Windows Session Manager
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install_folder
%AppData%
Targets
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Target
0e3be9658e97e3ea844e0d818a0f4731573ec5affe4f42e8d244e0c91717df68
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Size
501KB
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MD5
8b662719e44ab11419fe3e1d7e96cc03
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SHA1
af6c092ff304cd5131cc0295fa8b51a572af5388
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SHA256
0e3be9658e97e3ea844e0d818a0f4731573ec5affe4f42e8d244e0c91717df68
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SHA512
3a441802fad9b3eafe327d6239cb8891551df04ccf555658d8855fbbcdacda3abefc9e627b3a59cf28de9681e348d2cc749cd63514721c9b86e0519ceb57309a
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SSDEEP
12288:iSrH22qla5w/yXbxixFcRMFQIkeNCSo9mbX:iSrH0MW/IbxiYCQIkeNCSB
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Detect PureCrypter injector
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Modifies WinLogon for persistence
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PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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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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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1