Analysis
- max time kernel
140s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
29/04/2024, 04:26
General
- Target gK5vkTm6WAcfbiz.exe
- Size 630KB
- Sample240429-e2hsysab77
- SHA256 0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
december2nd.ddns.net:64418
-
december2n.duckdns.org:64418
-
a73ea09a-fffa-47fc-8cf2-8699258828eb
-
activate_away_mode
false
-
backup_connection_host
december2n.duckdns.org
- backup_dns_server
-
buffer_size
65538
-
build_time
2024-02-03T01:52:12.147368736Z
-
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
64418
-
default_group
NO GREE
-
enable_debug_mode
true
-
gc_threshold
1.0485772e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.0485772e+07
-
mutex
a73ea09a-fffa-47fc-8cf2-8699258828eb
-
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
false
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8009
Signatures
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- 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).
- 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 5 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\gK5vkTm6WAcfbiz.exe"C:\Users\Admin\AppData\Local\Temp\gK5vkTm6WAcfbiz.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\gK5vkTm6WAcfbiz.exe"2⤵
- 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\ZYoQJBONC.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZYoQJBONC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp97EA.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\gK5vkTm6WAcfbiz.exe"C:\Users\Admin\AppData\Local\Temp\gK5vkTm6WAcfbiz.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- 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 "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9C9E.tmp"3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WPA Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9E93.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_cfcxwefq.by3.ps1
tmp97EA.tmp
tmp9C9E.tmp
tmp9E93.tmp
memory/2976-84-0x0000000006AF0000-0x0000000006B93000-memory.dmp
memory/2976-41-0x0000000005480000-0x00000000057D4000-memory.dmp
memory/2976-99-0x0000000074910000-0x00000000750C0000-memory.dmp
memory/2976-93-0x0000000007120000-0x0000000007128000-memory.dmp
memory/2976-91-0x0000000007040000-0x0000000007054000-memory.dmp
memory/2976-90-0x0000000007030000-0x000000000703E000-memory.dmp
memory/2976-19-0x0000000004500000-0x0000000004510000-memory.dmp
memory/2976-18-0x0000000074910000-0x00000000750C0000-memory.dmp
memory/2976-17-0x0000000004510000-0x0000000004546000-memory.dmp
memory/2976-20-0x0000000004B80000-0x00000000051A8000-memory.dmp
memory/2976-87-0x0000000006E70000-0x0000000006E7A000-memory.dmp
memory/2976-86-0x0000000006E00000-0x0000000006E1A000-memory.dmp
memory/2976-63-0x00000000751C0000-0x000000007520C000-memory.dmp
memory/2976-24-0x0000000005320000-0x0000000005386000-memory.dmp
memory/2976-74-0x0000000005FE0000-0x0000000005FFE000-memory.dmp
memory/2976-25-0x0000000005390000-0x00000000053F6000-memory.dmp
memory/2976-23-0x0000000004AF0000-0x0000000004B12000-memory.dmp
memory/3016-85-0x0000000007530000-0x0000000007BAA000-memory.dmp
memory/3016-62-0x0000000006B50000-0x0000000006B82000-memory.dmp
memory/3016-100-0x0000000074910000-0x00000000750C0000-memory.dmp
memory/3016-92-0x0000000007230000-0x000000000724A000-memory.dmp
memory/3016-49-0x0000000005BA0000-0x0000000005BBE000-memory.dmp
memory/3016-50-0x0000000005C50000-0x0000000005C9C000-memory.dmp
memory/3016-89-0x00000000070F0000-0x0000000007101000-memory.dmp
memory/3016-88-0x0000000007170000-0x0000000007206000-memory.dmp
memory/3016-21-0x0000000074910000-0x00000000750C0000-memory.dmp
memory/3016-22-0x0000000002510000-0x0000000002520000-memory.dmp
memory/3016-64-0x00000000751C0000-0x000000007520C000-memory.dmp
memory/3708-14-0x0000000074910000-0x00000000750C0000-memory.dmp
memory/3708-3-0x00000000054F0000-0x0000000005582000-memory.dmp
memory/3708-8-0x00000000066C0000-0x00000000066D6000-memory.dmp
memory/3708-6-0x00000000059C0000-0x00000000059D8000-memory.dmp
memory/3708-1-0x0000000074910000-0x00000000750C0000-memory.dmp
memory/3708-0-0x0000000000A40000-0x0000000000AE4000-memory.dmp
memory/3708-7-0x00000000066B0000-0x00000000066BE000-memory.dmp
memory/3708-2-0x0000000005A00000-0x0000000005FA4000-memory.dmp
memory/3708-16-0x00000000056A0000-0x00000000056B0000-memory.dmp
memory/3708-9-0x0000000006740000-0x00000000067BC000-memory.dmp
memory/3708-4-0x00000000056A0000-0x00000000056B0000-memory.dmp
memory/3708-5-0x00000000054E0000-0x00000000054EA000-memory.dmp
memory/3708-10-0x0000000008ED0000-0x0000000008F6C000-memory.dmp
memory/3708-48-0x0000000074910000-0x00000000750C0000-memory.dmp
memory/4516-61-0x0000000006160000-0x000000000616A000-memory.dmp
memory/4516-58-0x00000000050B0000-0x00000000050BA000-memory.dmp
memory/4516-60-0x0000000005440000-0x000000000545E000-memory.dmp
memory/4516-46-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4516-59-0x00000000050C0000-0x00000000050CC000-memory.dmp