Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
11/05/2024, 08:27
General
- Target ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe
- Size 945KB
- Sample240511-kcrmfsbe93
- 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 14 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\tmpA633.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 "DOS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAB34.tmp"3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DOS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpADA6.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_wini1kp4.gtc.ps1
tmpA633.tmp
tmpAB34.tmp
tmpADA6.tmp
memory/64-92-0x0000000007BB0000-0x0000000007BBE000-memory.dmp
memory/64-19-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/64-86-0x0000000007630000-0x00000000076D3000-memory.dmp
memory/64-90-0x0000000007C00000-0x0000000007C96000-memory.dmp
memory/64-65-0x0000000075690000-0x00000000756DC000-memory.dmp
memory/64-15-0x0000000005090000-0x00000000050C6000-memory.dmp
memory/64-64-0x00000000075E0000-0x0000000007612000-memory.dmp
memory/64-18-0x0000000005890000-0x0000000005EB8000-memory.dmp
memory/64-17-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/64-22-0x0000000005790000-0x00000000057B2000-memory.dmp
memory/64-20-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/64-27-0x00000000060A0000-0x00000000063F4000-memory.dmp
memory/64-24-0x0000000006030000-0x0000000006096000-memory.dmp
memory/64-101-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/64-23-0x0000000005EC0000-0x0000000005F26000-memory.dmp
memory/452-61-0x0000000005A20000-0x0000000005A2C000-memory.dmp
memory/452-62-0x0000000005A30000-0x0000000005A4E000-memory.dmp
memory/452-60-0x0000000005750000-0x000000000575A000-memory.dmp
memory/452-44-0x0000000000400000-0x000000000043A000-memory.dmp
memory/452-63-0x00000000068A0000-0x00000000068AA000-memory.dmp
memory/4336-5-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/4336-4-0x0000000004E30000-0x0000000004E3A000-memory.dmp
memory/4336-50-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/4336-3-0x0000000004E40000-0x0000000004ED2000-memory.dmp
memory/4336-0-0x0000000074E1E000-0x0000000074E1F000-memory.dmp
memory/4336-2-0x0000000005350000-0x00000000058F4000-memory.dmp
memory/4336-1-0x0000000000470000-0x0000000000562000-memory.dmp
memory/4336-7-0x0000000005150000-0x0000000005160000-memory.dmp
memory/4336-28-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/4336-6-0x0000000005100000-0x000000000511E000-memory.dmp
memory/4336-16-0x0000000074E1E000-0x0000000074E1F000-memory.dmp
memory/4336-10-0x0000000008B30000-0x0000000008BCC000-memory.dmp
memory/4336-9-0x00000000063A0000-0x000000000641C000-memory.dmp
memory/4336-8-0x0000000005180000-0x0000000005196000-memory.dmp
memory/4584-34-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/4584-75-0x0000000075690000-0x00000000756DC000-memory.dmp
memory/4584-87-0x00000000079A0000-0x000000000801A000-memory.dmp
memory/4584-88-0x0000000007350000-0x000000000736A000-memory.dmp
memory/4584-89-0x00000000073D0000-0x00000000073DA000-memory.dmp
memory/4584-85-0x00000000065E0000-0x00000000065FE000-memory.dmp
memory/4584-91-0x0000000007550000-0x0000000007561000-memory.dmp
memory/4584-54-0x0000000006020000-0x000000000603E000-memory.dmp
memory/4584-93-0x0000000007590000-0x00000000075A4000-memory.dmp
memory/4584-94-0x0000000007690000-0x00000000076AA000-memory.dmp
memory/4584-95-0x0000000007670000-0x0000000007678000-memory.dmp
memory/4584-55-0x0000000006060000-0x00000000060AC000-memory.dmp
memory/4584-26-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/4584-102-0x0000000074E10000-0x00000000755C0000-memory.dmp
memory/4584-25-0x0000000074E10000-0x00000000755C0000-memory.dmp