Analysis
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max time kernel
103s -
max time network
111s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
06-12-2024 03:46
Static task
static1
Behavioral task
behavioral1
Sample
2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe
Resource
win7-20240903-en
General
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Target
2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe
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Size
503KB
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MD5
2d43dd5a629f5b5ced165a6957fa7a20
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SHA1
4326924c72002a52b073789dc647bc5d65edfc07
-
SHA256
2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28
-
SHA512
eec014d7069cd6edcc90d60df742f7961dca0a65f15d0c18f310754df7e21e018707220130ecd3d65cefc5084872391bdff6b32d9d09c9ad74652be513e160fb
-
SSDEEP
12288:eVGgMOAslYbn5vK2w7CeEBOB8tfjHmdqC:btslYbN2Ebt7HmdqC
Malware Config
Extracted
nanocore
1.2.2.0
212.192.241.19:9530
0e53723b-45a2-4610-9e0f-bcbf71098cb0
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activate_away_mode
false
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-07-26T03:05:48.681858136Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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clear_access_control
true
-
clear_zone_identifier
false
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connect_delay
4000
-
connection_port
9530
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default_group
Saint
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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
-
max_packet_size
1.048576e+07
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mutex
0e53723b-45a2-4610-9e0f-bcbf71098cb0
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mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
212.192.241.19
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primary_dns_server
8.8.8.8
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request_elevation
false
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restart_delay
5000
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run_delay
0
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run_on_startup
false
-
set_critical_process
false
-
timeout_interval
5000
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use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
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Nanocore family
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2436 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe" 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4700 set thread context of 1812 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 103 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\SMTP Subsystem\smtpss.exe 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe File opened for modification C:\Program Files (x86)\SMTP Subsystem\smtpss.exe 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1256 schtasks.exe 1792 schtasks.exe 2404 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2436 powershell.exe 2436 powershell.exe 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2436 powershell.exe Token: SeDebugPrivilege 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe Token: SeDebugPrivilege 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4700 wrote to memory of 2436 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 100 PID 4700 wrote to memory of 2436 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 100 PID 4700 wrote to memory of 2436 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 100 PID 4700 wrote to memory of 1256 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 102 PID 4700 wrote to memory of 1256 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 102 PID 4700 wrote to memory of 1256 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 102 PID 4700 wrote to memory of 1812 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 103 PID 4700 wrote to memory of 1812 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 103 PID 4700 wrote to memory of 1812 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 103 PID 4700 wrote to memory of 1812 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 103 PID 4700 wrote to memory of 1812 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 103 PID 4700 wrote to memory of 1812 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 103 PID 4700 wrote to memory of 1812 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 103 PID 4700 wrote to memory of 1812 4700 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 103 PID 1812 wrote to memory of 1792 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 105 PID 1812 wrote to memory of 1792 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 105 PID 1812 wrote to memory of 1792 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 105 PID 1812 wrote to memory of 2404 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 107 PID 1812 wrote to memory of 2404 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 107 PID 1812 wrote to memory of 2404 1812 2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe 107
Processes
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C:\Users\Admin\AppData\Local\Temp\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe"C:\Users\Admin\AppData\Local\Temp\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4700 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2436
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qvSCyEhVKRwxif" /XML "C:\Users\Admin\AppData\Local\Temp\tmp50BB.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1256
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C:\Users\Admin\AppData\Local\Temp\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe"C:\Users\Admin\AppData\Local\Temp\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28N.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5290.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1792
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp536B.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2404
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-
Network
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
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
1KB
MD5099b1473fe5016319a7a8f6b52fff11d
SHA1b3c2edb05a6dffe2de18cc34c17f08f92f05db6d
SHA2561344c596509bfd03e4b3deeed882095f02619b15c6843cd08fac4cbd332b0d73
SHA51221a50f34624fe8cda3deae8222e6a6af66f805fca2bb709166d827d039ba2ab8ec61f812511d3433102adb365afca6e9b843fed9ec1f214c54eefd9ddc04b6cf
-
Filesize
1KB
MD50339b45ef206f4becc88be0d65e24b9e
SHA16503a1851f4ccd8c80a31f96bd7ae40d962c9fad
SHA2563d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83
SHA512c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551