Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
16/05/2024, 07:31
General
- Target 6575D4BA39394CD5951B20909039EBD1.exe
- Size 659KB
- Sample240516-jcc9dsae96
- SHA256 58bff9dfeb9660c884056b2ffd90e796adbc9e6e6d5292f39609b153c4e2acc0
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
december2nd.ddns.net:65024
-
december2n.duckdns.org:65024
-
2c009a56-c28c-48f4-8875-acf9e1222e9f
-
activate_away_mode
false
-
backup_connection_host
december2n.duckdns.org
- backup_dns_server
-
buffer_size
65535
-
build_time
2024-02-17T09:12:36.211032636Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
65024
-
default_group
NO GREE
-
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
2c009a56-c28c-48f4-8875-acf9e1222e9f
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
december2nd.ddns.net
- primary_dns_server
-
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.
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 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
- 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).
- Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 22 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 26 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\6575D4BA39394CD5951B20909039EBD1.exe"C:\Users\Admin\AppData\Local\Temp\6575D4BA39394CD5951B20909039EBD1.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\6575D4BA39394CD5951B20909039EBD1.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BGhfFrEN.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BGhfFrEN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp825F.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8666.tmp"3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp86C5.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_gdeaus2u.yqh.ps1
tmp825F.tmp
tmp8666.tmp
tmp86C5.tmp
memory/2544-93-0x0000000007C70000-0x0000000007C8A000-memory.dmp
memory/2544-19-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/2544-39-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/2544-65-0x00000000754D0000-0x000000007551C000-memory.dmp
memory/2544-51-0x00000000066A0000-0x00000000066EC000-memory.dmp
memory/2544-16-0x0000000005040000-0x0000000005076000-memory.dmp
memory/2544-22-0x0000000005750000-0x0000000005772000-memory.dmp
memory/2544-17-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/2544-18-0x0000000005800000-0x0000000005E28000-memory.dmp
memory/2544-50-0x0000000006610000-0x000000000662E000-memory.dmp
memory/2544-91-0x0000000007B60000-0x0000000007B6E000-memory.dmp
memory/2544-100-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/2544-88-0x00000000079B0000-0x00000000079BA000-memory.dmp
memory/2544-24-0x0000000005EA0000-0x0000000005F06000-memory.dmp
memory/2544-27-0x0000000005F90000-0x00000000062E4000-memory.dmp
memory/2544-85-0x0000000007820000-0x00000000078C3000-memory.dmp
memory/2544-23-0x0000000005E30000-0x0000000005E96000-memory.dmp
memory/2716-9-0x0000000006E30000-0x0000000006E46000-memory.dmp
memory/2716-15-0x0000000074C4E000-0x0000000074C4F000-memory.dmp
memory/2716-10-0x00000000084A0000-0x000000000851C000-memory.dmp
memory/2716-8-0x0000000006D00000-0x0000000006D10000-memory.dmp
memory/2716-38-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/2716-7-0x0000000005F20000-0x0000000005F3E000-memory.dmp
memory/2716-4-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/2716-5-0x0000000005950000-0x000000000595A000-memory.dmp
memory/2716-6-0x0000000005BE0000-0x0000000005C7C000-memory.dmp
memory/2716-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp
memory/2716-3-0x0000000005990000-0x0000000005A22000-memory.dmp
memory/2716-2-0x0000000005F40000-0x00000000064E4000-memory.dmp
memory/2716-1-0x0000000000EB0000-0x0000000000F5C000-memory.dmp
memory/3944-92-0x0000000007C90000-0x0000000007CA4000-memory.dmp
memory/3944-25-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/3944-63-0x0000000006CA0000-0x0000000006CD2000-memory.dmp
memory/3944-83-0x0000000006C70000-0x0000000006C8E000-memory.dmp
memory/3944-21-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/3944-87-0x0000000007A50000-0x0000000007A6A000-memory.dmp
memory/3944-86-0x00000000080A0000-0x000000000871A000-memory.dmp
memory/3944-101-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/3944-89-0x0000000007CD0000-0x0000000007D66000-memory.dmp
memory/3944-90-0x0000000007C50000-0x0000000007C61000-memory.dmp
memory/3944-64-0x00000000754D0000-0x000000007551C000-memory.dmp
memory/3944-94-0x0000000007D70000-0x0000000007D78000-memory.dmp
memory/3944-40-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/5056-59-0x0000000005000000-0x000000000500A000-memory.dmp
memory/5056-26-0x0000000000400000-0x000000000043A000-memory.dmp
memory/5056-62-0x0000000006180000-0x000000000618A000-memory.dmp
memory/5056-61-0x00000000051C0000-0x00000000051DE000-memory.dmp
memory/5056-60-0x0000000005010000-0x000000000501C000-memory.dmp
memory/5056-104-0x0000000006790000-0x00000000067A2000-memory.dmp
memory/5056-105-0x00000000067A0000-0x00000000067BA000-memory.dmp
memory/5056-106-0x00000000067D0000-0x00000000067DE000-memory.dmp
memory/5056-107-0x00000000067E0000-0x00000000067F2000-memory.dmp
memory/5056-108-0x00000000067F0000-0x00000000067FE000-memory.dmp
memory/5056-109-0x0000000006800000-0x000000000680C000-memory.dmp
memory/5056-110-0x0000000006810000-0x0000000006824000-memory.dmp
memory/5056-111-0x0000000006820000-0x0000000006830000-memory.dmp
memory/5056-112-0x0000000006850000-0x0000000006864000-memory.dmp
memory/5056-113-0x0000000006860000-0x000000000686E000-memory.dmp
memory/5056-114-0x0000000006870000-0x000000000689E000-memory.dmp
memory/5056-115-0x00000000068B0000-0x00000000068C4000-memory.dmp