General
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Target
MicrosoftCorporation.exe
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Size
1.2MB
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Sample
240528-yb2mxsae27
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MD5
f24c087bfd6a5a11079a0ff8ee778593
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SHA1
cbc18f13be5788356fd776b92c17f748ba9b313a
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SHA256
c9f5cfba7202db9fde50c885c96b787258358398b8738e4b3954845ef0936866
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SHA512
0325b5b97e41fd927aa8241f11813ceda7610e9815a18c97fc6257cfd681cf1c799b530f40f1cfab6944a2bc39ab32dc8a8dcb6347a4edb17781b286cc1cbf81
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SSDEEP
24576:vwx9zxRNc+szf5FE0JahIJqnRrOCIRwU0Wfuwj2KD8SUSh8oGaWR:vwxHk+o/EgEsgOV2Wfu+/8S4
Static task
static1
Malware Config
Extracted
asyncrat
0.5.8
OP
20.117.108.240:5612
HssS7dvHeccj
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delay
3
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install
false
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install_folder
%AppData%
Extracted
asyncrat
0.5.8
OS
20.117.108.240:7825
IOr8QBoiV215
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delay
3
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install
false
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install_folder
%AppData%
Targets
-
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Target
MicrosoftCorporation.exe
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Size
1.2MB
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MD5
f24c087bfd6a5a11079a0ff8ee778593
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SHA1
cbc18f13be5788356fd776b92c17f748ba9b313a
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SHA256
c9f5cfba7202db9fde50c885c96b787258358398b8738e4b3954845ef0936866
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SHA512
0325b5b97e41fd927aa8241f11813ceda7610e9815a18c97fc6257cfd681cf1c799b530f40f1cfab6944a2bc39ab32dc8a8dcb6347a4edb17781b286cc1cbf81
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SSDEEP
24576:vwx9zxRNc+szf5FE0JahIJqnRrOCIRwU0Wfuwj2KD8SUSh8oGaWR:vwxHk+o/EgEsgOV2Wfu+/8S4
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Downloads MZ/PE file
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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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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1