Analysis
- max time kernel
142s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
17/10/2024, 03:37
General
- Target gunzipped.exe
- Size 732KB
- Sample241017-d6f99atfmk
- SHA256 ebab7ddccea1d6b5a5d4e69bf2dccd2684fc00f5955ca5e6bc5bc51833247232
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
udignost01.ddns.net:2024
-
79.110.49.176:2024
-
01a61652-cfc8-4cdd-90f8-a8280cbad3f0
-
activate_away_mode
true
-
backup_connection_host
79.110.49.176
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2024-07-28T11:44:56.682390236Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
2024
-
default_group
pullout
-
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
01a61652-cfc8-4cdd-90f8-a8280cbad3f0
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
udignost01.ddns.net
-
primary_dns_server
8.8.8.8
-
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
- Checks whether UAC is enabled 1 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).
- System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 20 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\gunzipped.exe"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\gunzipped.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- 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\NAytADOHXq.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NAytADOHXq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF9.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp13D1.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1662.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_ilmj02vb.cdz.ps1
tmp13D1.tmp
tmp1662.tmp
tmpFF9.tmp
memory/816-106-0x00000000079D0000-0x00000000079D8000-memory.dmp
memory/816-19-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/816-100-0x0000000007720000-0x000000000772A000-memory.dmp
memory/816-113-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/816-74-0x0000000074FC0000-0x000000007500C000-memory.dmp
memory/816-33-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/816-20-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/1752-103-0x00000000070B0000-0x00000000070BE000-memory.dmp
memory/1752-101-0x0000000007100000-0x0000000007196000-memory.dmp
memory/1752-17-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/1752-16-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/1752-15-0x0000000004590000-0x00000000045C6000-memory.dmp
memory/1752-25-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/1752-24-0x0000000005530000-0x0000000005596000-memory.dmp
memory/1752-23-0x0000000004C50000-0x0000000004CB6000-memory.dmp
memory/1752-27-0x00000000055A0000-0x00000000058F4000-memory.dmp
memory/1752-102-0x0000000007080000-0x0000000007091000-memory.dmp
memory/1752-104-0x00000000070C0000-0x00000000070D4000-memory.dmp
memory/1752-18-0x0000000004D10000-0x0000000005338000-memory.dmp
memory/1752-105-0x00000000071C0000-0x00000000071DA000-memory.dmp
memory/1752-22-0x0000000004AB0000-0x0000000004AD2000-memory.dmp
memory/1752-107-0x00000000071A0000-0x00000000071A8000-memory.dmp
memory/1752-56-0x0000000005B70000-0x0000000005BBC000-memory.dmp
memory/1752-55-0x0000000005B40000-0x0000000005B5E000-memory.dmp
memory/1752-114-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/1752-99-0x0000000006E80000-0x0000000006E9A000-memory.dmp
memory/1752-98-0x00000000074D0000-0x0000000007B4A000-memory.dmp
memory/1752-73-0x0000000006B10000-0x0000000006B2E000-memory.dmp
memory/1752-62-0x0000000006AD0000-0x0000000006B02000-memory.dmp
memory/1752-63-0x0000000074FC0000-0x000000007500C000-memory.dmp
memory/1752-84-0x0000000006B30000-0x0000000006BD3000-memory.dmp
memory/2640-59-0x0000000005D70000-0x0000000005D8E000-memory.dmp
memory/2640-88-0x0000000007330000-0x000000000733E000-memory.dmp
memory/2640-87-0x0000000007300000-0x000000000731A000-memory.dmp
memory/2640-86-0x00000000072F0000-0x0000000007302000-memory.dmp
memory/2640-91-0x0000000007360000-0x000000000736E000-memory.dmp
memory/2640-92-0x0000000007370000-0x0000000007384000-memory.dmp
memory/2640-95-0x00000000073C0000-0x00000000073CE000-memory.dmp
memory/2640-97-0x0000000007410000-0x0000000007424000-memory.dmp
memory/2640-96-0x00000000073D0000-0x00000000073FE000-memory.dmp
memory/2640-94-0x00000000073A0000-0x00000000073B4000-memory.dmp
memory/2640-93-0x0000000007380000-0x0000000007390000-memory.dmp
memory/2640-90-0x0000000007350000-0x000000000735C000-memory.dmp
memory/2640-89-0x0000000007340000-0x0000000007352000-memory.dmp
memory/2640-60-0x0000000006AA0000-0x0000000006AAA000-memory.dmp
memory/2640-26-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2640-58-0x0000000005960000-0x000000000596A000-memory.dmp
memory/4808-0-0x000000007474E000-0x000000007474F000-memory.dmp
memory/4808-39-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/4808-10-0x0000000006870000-0x00000000068EA000-memory.dmp
memory/4808-9-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/4808-8-0x000000007474E000-0x000000007474F000-memory.dmp
memory/4808-7-0x0000000005420000-0x0000000005432000-memory.dmp
memory/4808-6-0x0000000005580000-0x000000000561C000-memory.dmp
memory/4808-5-0x00000000052A0000-0x00000000052AA000-memory.dmp
memory/4808-4-0x0000000074740000-0x0000000074EF0000-memory.dmp
memory/4808-3-0x0000000005330000-0x00000000053C2000-memory.dmp
memory/4808-2-0x0000000005840000-0x0000000005DE4000-memory.dmp
memory/4808-1-0x00000000007F0000-0x00000000008AA000-memory.dmp