General
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Target
aeas.exe
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Size
918KB
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Sample
240413-kwfz3ace53
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MD5
da4e713ae910ed87d01aee5ba13baca0
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SHA1
6c7da14a0cb3cbfa3f8099e48af9ec0a4b1e23b3
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SHA256
54a9de19f630c92a3c6cb9f0ccce3e916a600232fc68429678bbf70d043fb77d
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SHA512
690e6e7218fa4a6506a0428cc9159bf353762a1a47b5874b9dd07a6c7928f4d71b6b2b8fb189e98445a18b014a6f324f964a6999a1c0c6c46dc26b343a898cab
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SSDEEP
12288:30XCGPSX0zbyD+ndg+QCImGYUl9qyzlkE2kUNCg+34ai5V2Xopqi1n07dG1lFlWR:D2C4MROxnF96rrcI0AilFEvxHjzHQu
Malware Config
Extracted
orcus
s7vety-47274.portmap.host:47274
dd6ac135bc344ba3be035bc19a9835dc
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autostart_method
Registry
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enable_keylogger
false
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install_path
%temp%\Windows Updater\updateclient.exe
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reconnect_delay
10000
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registry_keyname
Orcus
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taskscheduler_taskname
Orcus
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watchdog_path
AppData\OrcusWatchdog.exe
Targets
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Target
aeas.exe
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Size
918KB
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MD5
da4e713ae910ed87d01aee5ba13baca0
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SHA1
6c7da14a0cb3cbfa3f8099e48af9ec0a4b1e23b3
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SHA256
54a9de19f630c92a3c6cb9f0ccce3e916a600232fc68429678bbf70d043fb77d
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SHA512
690e6e7218fa4a6506a0428cc9159bf353762a1a47b5874b9dd07a6c7928f4d71b6b2b8fb189e98445a18b014a6f324f964a6999a1c0c6c46dc26b343a898cab
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SSDEEP
12288:30XCGPSX0zbyD+ndg+QCImGYUl9qyzlkE2kUNCg+34ai5V2Xopqi1n07dG1lFlWR:D2C4MROxnF96rrcI0AilFEvxHjzHQu
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Orcus main payload
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Orcurs Rat Executable
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Modifies Windows Firewall
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Sets DLL path for service in the registry
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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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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Modifies WinLogon
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3