Analysis
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max time kernel
120s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20250211-en -
resource tags
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submitted
16-02-2025 09:20
General
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Target
a8f08895558d9739ef0bf0a091efed1caa803b19dd3278265e829316d654a09fN.exe
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Size
1.0MB
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MD5
1debdf6ab069c985e49a0fa3d89be290
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SHA1
98a75e463b276ee5893d85311c6d1a487bb7f62b
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SHA256
a8f08895558d9739ef0bf0a091efed1caa803b19dd3278265e829316d654a09f
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SHA512
ef11d9588d7c7c59f6ec182aa17fcd8265bb5d0f8f39e5a8716a114aa8f37f72086f6eec547af559b3206950ebe73efef772cce4cd505e5208a5d535d58be966
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SSDEEP
24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/b:Ur9gNGKXYD+naGEsBXUv66k8o4yp5wb
Malware Config
Extracted
nanocore
1.2.2.0
testwork.kozow.com:8906
bd6fc7b5-d48b-4e23-98f7-784bd3ef305c
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activate_away_mode
true
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backup_connection_host
testwork.kozow.com
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2019-02-16T16:47:25.218235636Z
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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
8906
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default_group
star
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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
bd6fc7b5-d48b-4e23-98f7-784bd3ef305c
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
testwork.kozow.com
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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
true
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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
Signatures
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NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
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Nanocore family
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Downloads MZ/PE file 1 IoCs
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Drops startup file 1 IoCs
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Checks whether UAC is enabled 1 TTPs 1 IoCs
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AutoIT Executable 12 IoCs
AutoIT scripts compiled to PE executables.
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Suspicious use of SetThreadContext 1 IoCs
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UPX packed file 13 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of FindShellTrayWindow 3 IoCs
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Suspicious use of SendNotifyMessage 3 IoCs
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Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a8f08895558d9739ef0bf0a091efed1caa803b19dd3278265e829316d654a09fN.exe"C:\Users\Admin\AppData\Local\Temp\a8f08895558d9739ef0bf0a091efed1caa803b19dd3278265e829316d654a09fN.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
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C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI0IiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMyMzYiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDI1MTE0ODAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NTE4Mzk0MDUxIi8-PC9hcHA-PC9yZXF1ZXN0Pg1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4KB
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Filesize
5.7MB
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Filesize
224KB
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Filesize
4KB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
4KB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
4KB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
1.7MB