General
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Target
a457dde0fa790f976b97320fbfd4bc97.exe
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Size
1.6MB
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Sample
231204-l7xydsad7t
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MD5
a457dde0fa790f976b97320fbfd4bc97
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SHA1
97797ffd490394755c43e5c1eaedac63149444d3
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SHA256
4e7f4dfcec36aff9c423f49609a7ef86bab29a0e9c914579f76c3840288091ee
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SHA512
56feea8d2a68ac0abe1206e5c1b04f459f16bcaa5d1d76c483c411c0bb18bc5fc7e9827eae64efe96ef8c4f638b140bb94cca62600cfac67eddcc64430307b2e
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SSDEEP
49152:7mu6MtJSShwzalGidhn+7whDBXBSL8Bl4:ea6cGidhXDBxSo4
Behavioral task
behavioral1
Sample
a457dde0fa790f976b97320fbfd4bc97.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
a457dde0fa790f976b97320fbfd4bc97.exe
Resource
win10v2004-20231127-en
Malware Config
Targets
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Target
a457dde0fa790f976b97320fbfd4bc97.exe
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Size
1.6MB
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MD5
a457dde0fa790f976b97320fbfd4bc97
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SHA1
97797ffd490394755c43e5c1eaedac63149444d3
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SHA256
4e7f4dfcec36aff9c423f49609a7ef86bab29a0e9c914579f76c3840288091ee
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SHA512
56feea8d2a68ac0abe1206e5c1b04f459f16bcaa5d1d76c483c411c0bb18bc5fc7e9827eae64efe96ef8c4f638b140bb94cca62600cfac67eddcc64430307b2e
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SSDEEP
49152:7mu6MtJSShwzalGidhn+7whDBXBSL8Bl4:ea6cGidhXDBxSo4
Score10/10-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Modifies WinLogon for persistence
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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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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Loads dropped DLL
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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 NtSetInformationThreadHideFromDebugger
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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
1