General
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Target
4a925b21396d0857247c4fda247b4013
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Size
10.0MB
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Sample
231226-b9tzeaega3
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MD5
4a925b21396d0857247c4fda247b4013
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SHA1
94451a7969803fe2f4c7b4fac6e6c3918bb3664d
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SHA256
eba4e98e32ac6ae21675ef2f0367ebae91008cd0948d9f2d7b4d4d162ef5275b
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SHA512
ca6b483d821cc5d477dd6d15c50ff7a6469285f4b7de6add4d2895eb43829ca93c72209a6759270c5087db2bdd63530304378c49b3f64906dbaf806b47c135ab
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SSDEEP
49152:hfunoRgSFuY+258phuinSjIiFjaLcfvSuhhlD/7dvU+J4NES8C9GqMime+2mVVG9:h2YgSFy
Static task
static1
Behavioral task
behavioral1
Sample
4a925b21396d0857247c4fda247b4013.exe
Resource
win7-20231215-en
Malware Config
Extracted
nanocore
1.2.2.0
desdemone.ddns.net:54984
389ac8e1-237e-4496-aaad-e6c59071c44b
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activate_away_mode
true
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backup_connection_host
desdemone.ddns.net
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2021-05-10T23:44:45.859137736Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
54984
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default_group
Default
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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
389ac8e1-237e-4496-aaad-e6c59071c44b
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
desdemone.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
5000
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run_delay
0
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run_on_startup
false
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set_critical_process
true
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timeout_interval
5000
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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
4a925b21396d0857247c4fda247b4013
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Size
10.0MB
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MD5
4a925b21396d0857247c4fda247b4013
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SHA1
94451a7969803fe2f4c7b4fac6e6c3918bb3664d
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SHA256
eba4e98e32ac6ae21675ef2f0367ebae91008cd0948d9f2d7b4d4d162ef5275b
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SHA512
ca6b483d821cc5d477dd6d15c50ff7a6469285f4b7de6add4d2895eb43829ca93c72209a6759270c5087db2bdd63530304378c49b3f64906dbaf806b47c135ab
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SSDEEP
49152:hfunoRgSFuY+258phuinSjIiFjaLcfvSuhhlD/7dvU+J4NES8C9GqMime+2mVVG9:h2YgSFy
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Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1