General
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Target
fe336762e80da2b170280a2b1b836d90N.exe
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Size
640KB
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Sample
240823-j56reawbnm
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MD5
fe336762e80da2b170280a2b1b836d90
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SHA1
55a234638622e0e67d380cc7f827e71a88ffcba8
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SHA256
73faac219e34398e37026d1bebc1bb198a833ce5a97de2b56dd2a723d27456f6
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SHA512
052966fccf969a883f8a12a0681d089d3c137dc444ff4df8d3b4dca1f8fce1196fb7ff411f0577ae1faea9b07284e9edd49226124c9cb22e4701829e7337d44b
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SSDEEP
12288:b7WYyKnpG9iNdeK0xrhslCO3hF/+iX11Cj0hxIB6XTyG:b7WY1mrmh3Dn0ghxMcTyG
Static task
static1
Behavioral task
behavioral1
Sample
fe336762e80da2b170280a2b1b836d90N.exe
Resource
win7-20240729-en
Malware Config
Extracted
nanocore
1.2.2.0
mattwems38.ddns.net:57268
94.156.65.159:57268
5c44c87f-5c9e-45b6-af06-33037a7e5217
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activate_away_mode
true
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backup_connection_host
94.156.65.159
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2024-05-06T13:32:33.415272936Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
false
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clear_zone_identifier
true
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connect_delay
4000
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connection_port
57268
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default_group
Cbembalyne
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
5c44c87f-5c9e-45b6-af06-33037a7e5217
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
mattwems38.ddns.net
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5009
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run_delay
0
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run_on_startup
false
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set_critical_process
false
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timeout_interval
5008
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Targets
-
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Target
fe336762e80da2b170280a2b1b836d90N.exe
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Size
640KB
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MD5
fe336762e80da2b170280a2b1b836d90
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SHA1
55a234638622e0e67d380cc7f827e71a88ffcba8
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SHA256
73faac219e34398e37026d1bebc1bb198a833ce5a97de2b56dd2a723d27456f6
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SHA512
052966fccf969a883f8a12a0681d089d3c137dc444ff4df8d3b4dca1f8fce1196fb7ff411f0577ae1faea9b07284e9edd49226124c9cb22e4701829e7337d44b
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SSDEEP
12288:b7WYyKnpG9iNdeK0xrhslCO3hF/+iX11Cj0hxIB6XTyG:b7WY1mrmh3Dn0ghxMcTyG
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Adds Run key to start application
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1