Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
08/11/2024, 04:03
General
- Target e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe
- Size 831KB
- Sample241108-emdwfsvfmf
- SHA256 e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870
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
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- Nanocore family
- 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
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\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe"C:\Users\Admin\AppData\Local\Temp\e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.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
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD707.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD91B.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
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
e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870.exe.log
__PSScriptPolicyTest_on3ezr3e.2vw.ps1
tmpD707.tmp
tmpD91B.tmp
memory/3664-69-0x0000000006A80000-0x0000000006A94000-memory.dmp
memory/3664-44-0x0000000006180000-0x000000000619E000-memory.dmp
memory/3664-91-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/3664-90-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/3664-43-0x0000000005600000-0x000000000560A000-memory.dmp
memory/3664-66-0x0000000006A50000-0x0000000006A5E000-memory.dmp
memory/3664-70-0x0000000006A90000-0x0000000006AA0000-memory.dmp
memory/3664-71-0x0000000006AA0000-0x0000000006AB4000-memory.dmp
memory/3664-72-0x0000000006AD0000-0x0000000006ADE000-memory.dmp
memory/3664-14-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/3664-73-0x0000000006AE0000-0x0000000006B0E000-memory.dmp
memory/3664-74-0x0000000006B10000-0x0000000006B24000-memory.dmp
memory/3664-68-0x0000000006A70000-0x0000000006A7E000-memory.dmp
memory/3664-67-0x0000000006A60000-0x0000000006A72000-memory.dmp
memory/3664-65-0x0000000006A20000-0x0000000006A3A000-memory.dmp
memory/3664-64-0x0000000006A10000-0x0000000006A22000-memory.dmp
memory/3664-11-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3664-26-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/3664-45-0x00000000062B0000-0x00000000062BA000-memory.dmp
memory/3960-5-0x0000000005150000-0x000000000515A000-memory.dmp
memory/3960-0-0x000000007502E000-0x000000007502F000-memory.dmp
memory/3960-2-0x00000000057C0000-0x0000000005D64000-memory.dmp
memory/3960-6-0x0000000005430000-0x00000000054CC000-memory.dmp
memory/3960-7-0x000000007502E000-0x000000007502F000-memory.dmp
memory/3960-1-0x00000000005F0000-0x00000000006C6000-memory.dmp
memory/3960-8-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/3960-3-0x00000000050B0000-0x0000000005142000-memory.dmp
memory/3960-9-0x00000000064E0000-0x00000000064FC000-memory.dmp
memory/3960-10-0x0000000002AE0000-0x0000000002B5A000-memory.dmp
memory/3960-4-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/3960-16-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/5044-24-0x0000000005540000-0x00000000055A6000-memory.dmp
memory/5044-48-0x0000000070BE0000-0x0000000070C2C000-memory.dmp
memory/5044-61-0x0000000006CA0000-0x0000000006CBA000-memory.dmp
memory/5044-62-0x0000000006F20000-0x0000000006F2A000-memory.dmp
memory/5044-20-0x0000000004BC0000-0x0000000004BE2000-memory.dmp
memory/5044-19-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/5044-18-0x0000000004E10000-0x0000000005438000-memory.dmp
memory/5044-59-0x0000000006B90000-0x0000000006C33000-memory.dmp
memory/5044-17-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/5044-15-0x0000000000D70000-0x0000000000DA6000-memory.dmp
memory/5044-58-0x00000000060D0000-0x00000000060EE000-memory.dmp
memory/5044-60-0x0000000007590000-0x0000000007C0A000-memory.dmp
memory/5044-47-0x0000000006B50000-0x0000000006B82000-memory.dmp
memory/5044-22-0x0000000004CE0000-0x0000000004D46000-memory.dmp
memory/5044-75-0x0000000007130000-0x00000000071C6000-memory.dmp
memory/5044-32-0x00000000055B0000-0x0000000005904000-memory.dmp
memory/5044-76-0x00000000070B0000-0x00000000070C1000-memory.dmp
memory/5044-78-0x00000000070E0000-0x00000000070EE000-memory.dmp
memory/5044-79-0x00000000070F0000-0x0000000007104000-memory.dmp
memory/5044-80-0x00000000071F0000-0x000000000720A000-memory.dmp
memory/5044-81-0x00000000071D0000-0x00000000071D8000-memory.dmp
memory/5044-89-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/5044-39-0x0000000006130000-0x000000000617C000-memory.dmp
memory/5044-38-0x0000000005B90000-0x0000000005BAE000-memory.dmp