Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
11/05/2024, 08:25
General
- Target ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe
- Size 945KB
- Sample240511-kbshcsbe26
- SHA256 ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c
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 18 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe"C:\Users\Admin\AppData\Local\Temp\ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.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\ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.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\fupTmRCVq.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\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp877F.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⤵
- 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 "UDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8B38.tmp"3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8C72.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_x15cpm0d.4ww.ps1
tmp877F.tmp
tmp8B38.tmp
tmp8C72.tmp
memory/4072-65-0x0000000075B90000-0x0000000075BDC000-memory.dmp
memory/4072-46-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4072-102-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4072-90-0x0000000007D10000-0x0000000007DA6000-memory.dmp
memory/4072-86-0x0000000007740000-0x00000000077E3000-memory.dmp
memory/4072-16-0x00000000051B0000-0x00000000051E6000-memory.dmp
memory/4072-76-0x00000000076D0000-0x00000000076EE000-memory.dmp
memory/4072-17-0x0000000005970000-0x0000000005F98000-memory.dmp
memory/4072-18-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4072-19-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4072-21-0x00000000056B0000-0x00000000056D2000-memory.dmp
memory/4072-64-0x00000000076F0000-0x0000000007722000-memory.dmp
memory/4072-52-0x00000000067E0000-0x000000000682C000-memory.dmp
memory/4072-23-0x00000000058F0000-0x0000000005956000-memory.dmp
memory/4072-22-0x00000000057D0000-0x0000000005836000-memory.dmp
memory/4072-51-0x0000000006750000-0x000000000676E000-memory.dmp
memory/4072-32-0x00000000061A0000-0x00000000064F4000-memory.dmp
memory/4492-88-0x0000000007B30000-0x0000000007B4A000-memory.dmp
memory/4492-92-0x0000000007D60000-0x0000000007D6E000-memory.dmp
memory/4492-101-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4492-89-0x0000000007BA0000-0x0000000007BAA000-memory.dmp
memory/4492-48-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4492-95-0x0000000007E50000-0x0000000007E58000-memory.dmp
memory/4492-25-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4492-94-0x0000000007E70000-0x0000000007E8A000-memory.dmp
memory/4492-93-0x0000000007D70000-0x0000000007D84000-memory.dmp
memory/4492-87-0x0000000008180000-0x00000000087FA000-memory.dmp
memory/4492-75-0x0000000075B90000-0x0000000075BDC000-memory.dmp
memory/4492-26-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4492-91-0x0000000007D30000-0x0000000007D41000-memory.dmp
memory/4708-63-0x0000000006A80000-0x0000000006A8A000-memory.dmp
memory/4708-62-0x0000000006950000-0x000000000696E000-memory.dmp
memory/4708-61-0x00000000058F0000-0x00000000058FC000-memory.dmp
memory/4708-60-0x00000000058E0000-0x00000000058EA000-memory.dmp
memory/4708-47-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4852-15-0x00000000752EE000-0x00000000752EF000-memory.dmp
memory/4852-10-0x0000000008CD0000-0x0000000008D6C000-memory.dmp
memory/4852-7-0x00000000062C0000-0x00000000062D0000-memory.dmp
memory/4852-0-0x00000000752EE000-0x00000000752EF000-memory.dmp
memory/4852-9-0x0000000006730000-0x00000000067AC000-memory.dmp
memory/4852-6-0x00000000056D0000-0x00000000056EE000-memory.dmp
memory/4852-3-0x00000000050B0000-0x0000000005142000-memory.dmp
memory/4852-4-0x0000000005290000-0x000000000529A000-memory.dmp
memory/4852-24-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4852-50-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/4852-2-0x0000000005710000-0x0000000005CB4000-memory.dmp
memory/4852-1-0x00000000005E0000-0x00000000006D2000-memory.dmp
memory/4852-8-0x00000000062F0000-0x0000000006306000-memory.dmp
memory/4852-5-0x00000000752E0000-0x0000000075A90000-memory.dmp