Analysis
-
max time kernel
139s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
05-11-2024 02:29
Static task
static1
Behavioral task
behavioral1
Sample
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe
Resource
win7-20240903-en
General
-
Target
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe
-
Size
720KB
-
MD5
782965f857a2c2dbc179b7e016386f61
-
SHA1
3d16a97e2733daa4c2313035e134e763497bb948
-
SHA256
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a
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SHA512
a1c98f6c20b9b5692069ac79d43ed06481faf963da10ad24b83bf4d76c44db2fca87e5237205be1767b83781ea63e0d8993dfc86bb08743e6756482771e01272
-
SSDEEP
12288:2lx+dhZfm1NjNJrhCByke+7/wrhQUKLxfguWTe/OSzT7Ad9hg7pzm9owtSE3:w+d/f+Njt+7IrylxfguWTelK39oL
Malware Config
Extracted
nanocore
1.2.2.0
66.63.187.113:1664
a376f716-2f77-4943-a431-3a3bcb53b7c0
-
activate_away_mode
true
-
backup_connection_host
66.63.187.113
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2024-08-05T03:49:33.827385136Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1664
-
default_group
CAT
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
a376f716-2f77-4943-a431-3a3bcb53b7c0
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
66.63.187.113
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
true
-
timeout_interval
5000
-
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.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\PCI Subsystem = "C:\\Program Files (x86)\\PCI Subsystem\\pciss.exe" 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe -
Processes:
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exedescription pid process target process PID 4156 set thread context of 4012 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe -
Drops file in Program Files directory 2 IoCs
Processes:
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exedescription ioc process File created C:\Program Files (x86)\PCI Subsystem\pciss.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe File opened for modification C:\Program Files (x86)\PCI Subsystem\pciss.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.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 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
schtasks.exeschtasks.exe2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exepowershell.exedescription ioc process 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 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 2816 schtasks.exe 4988 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exepowershell.exe2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exepid process 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 5068 powershell.exe 5068 powershell.exe 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exepid process 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exepowershell.exe2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exedescription pid process Token: SeDebugPrivilege 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe Token: SeDebugPrivilege 5068 powershell.exe Token: SeDebugPrivilege 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exedescription pid process target process PID 4156 wrote to memory of 5068 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe powershell.exe PID 4156 wrote to memory of 5068 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe powershell.exe PID 4156 wrote to memory of 5068 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe powershell.exe PID 4156 wrote to memory of 3204 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 3204 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 3204 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 4012 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 4012 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 4012 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 4012 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 4012 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 4012 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 4012 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4156 wrote to memory of 4012 4156 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe PID 4012 wrote to memory of 2816 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe schtasks.exe PID 4012 wrote to memory of 2816 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe schtasks.exe PID 4012 wrote to memory of 2816 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe schtasks.exe PID 4012 wrote to memory of 4988 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe schtasks.exe PID 4012 wrote to memory of 4988 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe schtasks.exe PID 4012 wrote to memory of 4988 4012 2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe"C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4156 -
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\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5068
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-
C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe"C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe"2⤵PID:3204
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-
C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe"C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.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:4012 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "PCI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDAFE.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2816
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "PCI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDD41.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4988
-
-
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
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
1KB
MD5df4d0e9c3f264d12150e22239d449c59
SHA190649a3bb8a2853535b8944966adf577192f6698
SHA2562d2ad709a852677b5174d6831d875fd009a38a7df6d8e4b17b97beff2a3d5550
SHA51259110fb883f45870a5e482f1c3c0344707cd9466e56867818fa0c652f8faa145fa423d34b0ee36a4457cd142b94acc693b1a9ed8f853bccb39dc08826797a469
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Filesize
1KB
MD509063e7cc0d66a9aed53f2e2d2409103
SHA196f8fa15b5a3b2646f6691770a158c69ea7405a4
SHA256369b159ef60c988373a3c85e0b10b5ff2178504465f11965ab0d66f14124f9a1
SHA512c460a3cab70270c5cefe0464df6ddb9d50bb58ac9c49c7e62c9a55cc6bc30b6411cbc28ae418dd91b1ba1190f8394ccd937452ae70d7062740207d2ffc68e2ec