Analysis
- max time kernel
114s - max time network
122s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
30/09/2024, 15:23
General
- Target 4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe
- Size 629KB
- Sample240930-sstezswfmc
- SHA256 4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
pnauco5.ddns.net:1664
-
cde38e58-d99c-4068-b775-59569bc2e8ce
-
activate_away_mode
true
-
backup_connection_host
pnauco5.ddns.net
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2024-07-03T06:48:27.569053036Z
-
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
1664
-
default_group
NEW
-
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
cde38e58-d99c-4068-b775-59569bc2e8ce
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
pnauco5.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 1 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 5 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 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe"C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe"C:\Users\Admin\AppData\Local\Temp\4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.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 "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9F19.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA17C.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4324,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=4340 /prefetch:81⤵
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
4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226N.exe.log
__PSScriptPolicyTest_tnlsrtkf.wty.ps1
tmp9F19.tmp
tmpA17C.tmp
memory/3944-4-0x0000000074600000-0x0000000074DB0000-memory.dmp
memory/3944-5-0x00000000052C0000-0x00000000052CA000-memory.dmp
memory/3944-6-0x0000000006B90000-0x0000000006BA2000-memory.dmp
memory/3944-7-0x000000007460E000-0x000000007460F000-memory.dmp
memory/3944-8-0x0000000074600000-0x0000000074DB0000-memory.dmp
memory/3944-9-0x0000000006E60000-0x0000000006EDA000-memory.dmp
memory/3944-10-0x0000000009560000-0x00000000095FC000-memory.dmp
memory/3944-3-0x0000000005200000-0x0000000005292000-memory.dmp
memory/3944-2-0x0000000005860000-0x0000000005E04000-memory.dmp
memory/3944-15-0x0000000074600000-0x0000000074DB0000-memory.dmp
memory/3944-0-0x000000007460E000-0x000000007460F000-memory.dmp
memory/3944-1-0x0000000000780000-0x0000000000824000-memory.dmp
memory/4224-39-0x0000000006120000-0x000000000616C000-memory.dmp
memory/4224-18-0x0000000004CF0000-0x0000000005318000-memory.dmp
memory/4224-20-0x0000000004CA0000-0x0000000004CC2000-memory.dmp
memory/4224-83-0x0000000074600000-0x0000000074DB0000-memory.dmp
memory/4224-23-0x0000000005500000-0x0000000005566000-memory.dmp
memory/4224-17-0x0000000074600000-0x0000000074DB0000-memory.dmp
memory/4224-22-0x0000000005490000-0x00000000054F6000-memory.dmp
memory/4224-35-0x0000000005570000-0x00000000058C4000-memory.dmp
memory/4224-36-0x0000000074600000-0x0000000074DB0000-memory.dmp
memory/4224-16-0x0000000002240000-0x0000000002276000-memory.dmp
memory/4224-38-0x0000000005B60000-0x0000000005B7E000-memory.dmp
memory/4224-64-0x0000000007090000-0x00000000070A1000-memory.dmp
memory/4224-80-0x00000000071B0000-0x00000000071B8000-memory.dmp
memory/4224-79-0x00000000071D0000-0x00000000071EA000-memory.dmp
memory/4224-78-0x00000000070D0000-0x00000000070E4000-memory.dmp
memory/4224-77-0x00000000070C0000-0x00000000070CE000-memory.dmp
memory/4224-47-0x00000000060C0000-0x00000000060F2000-memory.dmp
memory/4224-48-0x00000000701A0000-0x00000000701EC000-memory.dmp
memory/4224-58-0x0000000006100000-0x000000000611E000-memory.dmp
memory/4224-59-0x0000000006E20000-0x0000000006EC3000-memory.dmp
memory/4224-60-0x0000000007550000-0x0000000007BCA000-memory.dmp
memory/4224-61-0x0000000006220000-0x000000000623A000-memory.dmp
memory/4224-62-0x0000000006F00000-0x0000000006F0A000-memory.dmp
memory/4224-63-0x0000000007110000-0x00000000071A6000-memory.dmp
memory/4468-14-0x0000000074600000-0x0000000074DB0000-memory.dmp
memory/4468-67-0x0000000006A60000-0x0000000006A7A000-memory.dmp
memory/4468-66-0x0000000006A50000-0x0000000006A62000-memory.dmp
memory/4468-70-0x0000000006AB0000-0x0000000006ABE000-memory.dmp
memory/4468-71-0x0000000006AC0000-0x0000000006AD4000-memory.dmp
memory/4468-69-0x0000000006AA0000-0x0000000006AB2000-memory.dmp
memory/4468-68-0x0000000006A90000-0x0000000006A9E000-memory.dmp
memory/4468-72-0x0000000006AD0000-0x0000000006AE0000-memory.dmp
memory/4468-73-0x0000000006AF0000-0x0000000006B04000-memory.dmp
memory/4468-75-0x0000000006B20000-0x0000000006B4E000-memory.dmp
memory/4468-76-0x0000000006B60000-0x0000000006B74000-memory.dmp
memory/4468-74-0x0000000006B10000-0x0000000006B1E000-memory.dmp
memory/4468-43-0x00000000052C0000-0x00000000052CA000-memory.dmp
memory/4468-45-0x0000000006200000-0x000000000620A000-memory.dmp
memory/4468-44-0x00000000052D0000-0x00000000052EE000-memory.dmp
memory/4468-11-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4468-24-0x0000000074600000-0x0000000074DB0000-memory.dmp
memory/4468-85-0x0000000074600000-0x0000000074DB0000-memory.dmp
memory/4468-86-0x0000000074600000-0x0000000074DB0000-memory.dmp