Analysis
- max time kernel
145s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
11/05/2024, 08:29
General
- Target ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe
- Size 945KB
- Sample240511-kdkwasbf74
- 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 26 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\tmp87FC.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 "UDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8C23.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\tmp8D6C.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_a254yzjm.lq1.ps1
tmp87FC.tmp
tmp8C23.tmp
tmp8D6C.tmp
memory/1156-3-0x0000000005120000-0x00000000051B2000-memory.dmp
memory/1156-16-0x0000000074A0E000-0x0000000074A0F000-memory.dmp
memory/1156-6-0x00000000054E0000-0x00000000054FE000-memory.dmp
memory/1156-7-0x0000000005520000-0x0000000005530000-memory.dmp
memory/1156-8-0x0000000005550000-0x0000000005566000-memory.dmp
memory/1156-9-0x00000000066F0000-0x000000000676C000-memory.dmp
memory/1156-10-0x0000000008E10000-0x0000000008EAC000-memory.dmp
memory/1156-5-0x0000000005100000-0x000000000510A000-memory.dmp
memory/1156-4-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/1156-46-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/1156-2-0x0000000005630000-0x0000000005BD4000-memory.dmp
memory/1156-1-0x0000000000600000-0x00000000006F2000-memory.dmp
memory/1156-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp
memory/1156-50-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/3064-102-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/3064-88-0x0000000007660000-0x000000000767A000-memory.dmp
memory/3064-92-0x0000000007890000-0x000000000789E000-memory.dmp
memory/3064-31-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/3064-47-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/3064-95-0x0000000007980000-0x0000000007988000-memory.dmp
memory/3064-35-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/3064-87-0x0000000007CA0000-0x000000000831A000-memory.dmp
memory/3064-77-0x00000000752B0000-0x00000000752FC000-memory.dmp
memory/4344-62-0x0000000005920000-0x000000000593E000-memory.dmp
memory/4344-63-0x0000000005940000-0x000000000594A000-memory.dmp
memory/4344-60-0x0000000005640000-0x000000000564A000-memory.dmp
memory/4344-48-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4344-61-0x0000000005650000-0x000000000565C000-memory.dmp
memory/4604-45-0x0000000005C10000-0x0000000005F64000-memory.dmp
memory/4604-52-0x00000000067D0000-0x000000000681C000-memory.dmp
memory/4604-51-0x0000000006260000-0x000000000627E000-memory.dmp
memory/4604-65-0x00000000752B0000-0x00000000752FC000-memory.dmp
memory/4604-64-0x0000000007440000-0x0000000007472000-memory.dmp
memory/4604-75-0x0000000007420000-0x000000000743E000-memory.dmp
memory/4604-76-0x0000000007480000-0x0000000007523000-memory.dmp
memory/4604-22-0x00000000052A0000-0x00000000052C2000-memory.dmp
memory/4604-23-0x0000000005980000-0x00000000059E6000-memory.dmp
memory/4604-24-0x00000000059F0000-0x0000000005A56000-memory.dmp
memory/4604-89-0x0000000007600000-0x000000000760A000-memory.dmp
memory/4604-90-0x0000000007810000-0x00000000078A6000-memory.dmp
memory/4604-91-0x0000000007790000-0x00000000077A1000-memory.dmp
memory/4604-20-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/4604-93-0x00000000077D0000-0x00000000077E4000-memory.dmp
memory/4604-94-0x00000000078D0000-0x00000000078EA000-memory.dmp
memory/4604-19-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/4604-18-0x0000000074A00000-0x00000000751B0000-memory.dmp
memory/4604-17-0x0000000005350000-0x0000000005978000-memory.dmp
memory/4604-15-0x0000000004CE0000-0x0000000004D16000-memory.dmp
memory/4604-101-0x0000000074A00000-0x00000000751B0000-memory.dmp