Analysis
- max time kernel
140s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
17/05/2024, 03:56
General
- Target 6WWUgqjTcGWPAyI.exe
- Size 697KB
- Sample240517-ehb63age29
- SHA256 62ce4e89f91a70f82f5a61bf76c4ab592982f761eef609bd7ea7b196f9415e83
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
december2n.duckdns.org:65140
-
december2nd.ddns.net:65140
-
899d14c1-6714-492c-b745-3165bff717a5
-
activate_away_mode
false
-
backup_connection_host
december2nd.ddns.net
- backup_dns_server
-
buffer_size
65535
-
build_time
2024-02-27T02:16:51.671967236Z
-
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
65140
-
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
899d14c1-6714-492c-b745-3165bff717a5
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
december2n.duckdns.org
- 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 17 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\6WWUgqjTcGWPAyI.exe"C:\Users\Admin\AppData\Local\Temp\6WWUgqjTcGWPAyI.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\6WWUgqjTcGWPAyI.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\aJDyPjUKcXvqr.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\aJDyPjUKcXvqr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA18F.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 "DPI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA6DF.tmp"3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DPI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA9AE.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_y45wfchz.h0r.ps1
tmpA18F.tmp
tmpA6DF.tmp
tmpA9AE.tmp
memory/3308-20-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/3308-46-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/3308-77-0x0000000075A70000-0x0000000075ABC000-memory.dmp
memory/3308-98-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/3308-38-0x0000000005B00000-0x0000000005E54000-memory.dmp
memory/3308-19-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/3308-17-0x0000000005240000-0x0000000005868000-memory.dmp
memory/3308-16-0x0000000002820000-0x0000000002856000-memory.dmp
memory/3956-110-0x0000000006B10000-0x0000000006B24000-memory.dmp
memory/3956-106-0x0000000006AB0000-0x0000000006ABE000-memory.dmp
memory/3956-102-0x0000000006A50000-0x0000000006A62000-memory.dmp
memory/3956-103-0x0000000006A60000-0x0000000006A7A000-memory.dmp
memory/3956-61-0x0000000005040000-0x000000000504C000-memory.dmp
memory/3956-113-0x0000000006B70000-0x0000000006B84000-memory.dmp
memory/3956-104-0x0000000006A90000-0x0000000006A9E000-memory.dmp
memory/3956-63-0x0000000005F60000-0x0000000005F6A000-memory.dmp
memory/3956-112-0x0000000006B40000-0x0000000006B6E000-memory.dmp
memory/3956-108-0x0000000006AD0000-0x0000000006AE4000-memory.dmp
memory/3956-62-0x0000000005F40000-0x0000000005F5E000-memory.dmp
memory/3956-105-0x0000000006AA0000-0x0000000006AB2000-memory.dmp
memory/3956-47-0x0000000000400000-0x000000000043A000-memory.dmp
memory/3956-111-0x0000000006B30000-0x0000000006B3E000-memory.dmp
memory/3956-60-0x0000000005020000-0x000000000502A000-memory.dmp
memory/3956-109-0x0000000006B00000-0x0000000006B10000-memory.dmp
memory/3956-107-0x0000000006AC0000-0x0000000006ACC000-memory.dmp
memory/4044-50-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4044-11-0x00000000751FE000-0x00000000751FF000-memory.dmp
memory/4044-2-0x0000000005240000-0x00000000057E4000-memory.dmp
memory/4044-1-0x0000000000100000-0x00000000001B4000-memory.dmp
memory/4044-18-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4044-5-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4044-7-0x0000000009BD0000-0x0000000009BDC000-memory.dmp
memory/4044-8-0x00000000024D0000-0x00000000024E0000-memory.dmp
memory/4044-3-0x0000000004BB0000-0x0000000004C42000-memory.dmp
memory/4044-4-0x0000000004C50000-0x0000000004C5A000-memory.dmp
memory/4044-0-0x00000000751FE000-0x00000000751FF000-memory.dmp
memory/4044-9-0x0000000006090000-0x000000000610C000-memory.dmp
memory/4044-6-0x0000000004E50000-0x0000000004E72000-memory.dmp
memory/4044-10-0x0000000009C80000-0x0000000009D1C000-memory.dmp
memory/4292-25-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4292-89-0x0000000007B00000-0x0000000007B0A000-memory.dmp
memory/4292-90-0x0000000007D00000-0x0000000007D96000-memory.dmp
memory/4292-91-0x0000000007C80000-0x0000000007C91000-memory.dmp
memory/4292-92-0x0000000007CB0000-0x0000000007CBE000-memory.dmp
memory/4292-93-0x0000000007CC0000-0x0000000007CD4000-memory.dmp
memory/4292-94-0x0000000007DC0000-0x0000000007DDA000-memory.dmp
memory/4292-95-0x0000000007DA0000-0x0000000007DA8000-memory.dmp
memory/4292-99-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4292-88-0x0000000007A80000-0x0000000007A9A000-memory.dmp
memory/4292-87-0x00000000080D0000-0x000000000874A000-memory.dmp
memory/4292-76-0x0000000007750000-0x00000000077F3000-memory.dmp
memory/4292-65-0x0000000075A70000-0x0000000075ABC000-memory.dmp
memory/4292-75-0x00000000076F0000-0x000000000770E000-memory.dmp
memory/4292-64-0x0000000007710000-0x0000000007742000-memory.dmp
memory/4292-55-0x0000000006780000-0x00000000067CC000-memory.dmp
memory/4292-51-0x0000000006760000-0x000000000677E000-memory.dmp
memory/4292-49-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4292-21-0x0000000005780000-0x00000000057A2000-memory.dmp
memory/4292-36-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4292-22-0x0000000005820000-0x0000000005886000-memory.dmp
memory/4292-23-0x0000000005890000-0x00000000058F6000-memory.dmp