Analysis
- max time kernel
144s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
10/05/2024, 01:59
General
- Target ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe
- Size 945KB
- Sample240510-cew1ysff73
- 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.
- Detects executables packed with SmartAssembly 1 IoCs
- 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 25 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 29 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\tmp8146.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⤵
-
-
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\tmp853D.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\tmp86E4.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_gk1dqp5y.knv.ps1
tmp8146.tmp
tmp853D.tmp
tmp86E4.tmp
memory/464-39-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/464-4-0x00000000057D0000-0x00000000057DA000-memory.dmp
memory/464-8-0x0000000005C30000-0x0000000005C46000-memory.dmp
memory/464-9-0x0000000006E30000-0x0000000006EAC000-memory.dmp
memory/464-10-0x00000000093C0000-0x000000000945C000-memory.dmp
memory/464-16-0x00000000743DE000-0x00000000743DF000-memory.dmp
memory/464-1-0x0000000000E20000-0x0000000000F12000-memory.dmp
memory/464-2-0x0000000005EB0000-0x0000000006454000-memory.dmp
memory/464-3-0x00000000057F0000-0x0000000005882000-memory.dmp
memory/464-7-0x0000000005C00000-0x0000000005C10000-memory.dmp
memory/464-6-0x0000000005A20000-0x0000000005A3E000-memory.dmp
memory/464-0-0x00000000743DE000-0x00000000743DF000-memory.dmp
memory/464-5-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/1028-112-0x0000000007330000-0x0000000007344000-memory.dmp
memory/1028-111-0x0000000007300000-0x0000000007310000-memory.dmp
memory/1028-113-0x0000000007340000-0x000000000734E000-memory.dmp
memory/1028-109-0x00000000072E0000-0x00000000072EC000-memory.dmp
memory/1028-110-0x00000000072F0000-0x0000000007304000-memory.dmp
memory/1028-32-0x0000000000400000-0x000000000043A000-memory.dmp
memory/1028-105-0x0000000007280000-0x000000000729A000-memory.dmp
memory/1028-104-0x0000000007270000-0x0000000007282000-memory.dmp
memory/1028-115-0x0000000007390000-0x00000000073A4000-memory.dmp
memory/1028-108-0x00000000072D0000-0x00000000072DE000-memory.dmp
memory/1028-114-0x0000000007350000-0x000000000737E000-memory.dmp
memory/1028-107-0x00000000072C0000-0x00000000072D2000-memory.dmp
memory/1028-106-0x00000000072B0000-0x00000000072BE000-memory.dmp
memory/1028-62-0x0000000006B20000-0x0000000006B2A000-memory.dmp
memory/1028-61-0x00000000069D0000-0x00000000069EE000-memory.dmp
memory/1028-60-0x0000000005B90000-0x0000000005B9C000-memory.dmp
memory/1028-59-0x0000000005B80000-0x0000000005B8A000-memory.dmp
memory/3196-95-0x0000000007250000-0x0000000007258000-memory.dmp
memory/3196-31-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/3196-74-0x0000000006D80000-0x0000000006D9E000-memory.dmp
memory/3196-64-0x0000000074C60000-0x0000000074CAC000-memory.dmp
memory/3196-85-0x0000000006DF0000-0x0000000006E93000-memory.dmp
memory/3196-38-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/3196-40-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/3196-102-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/3196-89-0x00000000071B0000-0x0000000007246000-memory.dmp
memory/3196-90-0x0000000007130000-0x0000000007141000-memory.dmp
memory/3196-91-0x0000000007160000-0x000000000716E000-memory.dmp
memory/3196-63-0x0000000006DA0000-0x0000000006DD2000-memory.dmp
memory/3196-93-0x0000000007270000-0x000000000728A000-memory.dmp
memory/4012-92-0x00000000070B0000-0x00000000070C4000-memory.dmp
memory/4012-53-0x0000000005C10000-0x0000000005C5C000-memory.dmp
memory/4012-50-0x0000000005B50000-0x0000000005B6E000-memory.dmp
memory/4012-101-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/4012-88-0x0000000006EE0000-0x0000000006EEA000-memory.dmp
memory/4012-86-0x00000000074C0000-0x0000000007B3A000-memory.dmp
memory/4012-87-0x0000000006E70000-0x0000000006E8A000-memory.dmp
memory/4012-23-0x0000000005290000-0x00000000052F6000-memory.dmp
memory/4012-24-0x0000000005300000-0x0000000005366000-memory.dmp
memory/4012-75-0x0000000074C60000-0x0000000074CAC000-memory.dmp
memory/4012-30-0x0000000005510000-0x0000000005864000-memory.dmp
memory/4012-22-0x0000000004B80000-0x0000000004BA2000-memory.dmp
memory/4012-21-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/4012-19-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/4012-18-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/4012-17-0x0000000004C60000-0x0000000005288000-memory.dmp
memory/4012-15-0x0000000004580000-0x00000000045B6000-memory.dmp