Analysis
- max time kernel
142s - max time network
159s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
05/02/2024, 21:33
General
- Target 930e20f4d299bfc6fbd8f7ef9b3af0fe.exe
- Size 1.1MB
- Sample240205-1emdhshaa9
- SHA256 c3708b8a488352fd42611ad2b26c69bf8dd0c06a670a044351d064488e5789b1
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
79.134.225.100:1985
-
127.0.0.1:1985
-
b10f8b74-4448-4597-840b-1e44a5084bfc
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-04-30T10:29:24.181451236Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1985
-
default_group
OBO
-
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
b10f8b74-4448-4597-840b-1e44a5084bfc
-
mutex_timeout
5000
-
prevent_system_sleep
true
-
primary_connection_host
79.134.225.100
-
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.
- CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
- 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).
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\930e20f4d299bfc6fbd8f7ef9b3af0fe.exe"C:\Users\Admin\AppData\Local\Temp\930e20f4d299bfc6fbd8f7ef9b3af0fe.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\930e20f4d299bfc6fbd8f7ef9b3af0fe.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
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
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_vjmdr4ob.g4j.ps1
memory/740-6-0x00000000054C0000-0x00000000054CA000-memory.dmp
memory/740-8-0x0000000002E40000-0x0000000002E52000-memory.dmp
memory/740-3-0x0000000005A40000-0x0000000005FE4000-memory.dmp
memory/740-4-0x0000000005530000-0x00000000055C2000-memory.dmp
memory/740-5-0x00000000057B0000-0x00000000057C0000-memory.dmp
memory/740-16-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/740-7-0x00000000055D0000-0x0000000005626000-memory.dmp
memory/740-2-0x00000000053F0000-0x000000000548C000-memory.dmp
memory/740-9-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/740-10-0x00000000057B0000-0x00000000057C0000-memory.dmp
memory/740-11-0x0000000006F20000-0x0000000006FA2000-memory.dmp
memory/740-12-0x0000000007000000-0x000000000703A000-memory.dmp
memory/740-1-0x0000000000910000-0x0000000000A2A000-memory.dmp
memory/740-0-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/2592-34-0x0000000005630000-0x0000000005640000-memory.dmp
memory/2592-15-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/2592-73-0x0000000005630000-0x0000000005640000-memory.dmp
memory/2592-19-0x0000000005630000-0x0000000005640000-memory.dmp
memory/2592-72-0x0000000005630000-0x0000000005640000-memory.dmp
memory/2592-71-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/2592-26-0x00000000058B0000-0x00000000058CE000-memory.dmp
memory/2592-25-0x0000000005610000-0x000000000561A000-memory.dmp
memory/2592-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2592-33-0x00000000060F0000-0x00000000060FA000-memory.dmp
memory/4972-45-0x000000007F310000-0x000000007F320000-memory.dmp
memory/4972-58-0x0000000006D20000-0x0000000006DC3000-memory.dmp
memory/4972-22-0x0000000004DB0000-0x00000000053D8000-memory.dmp
memory/4972-39-0x00000000056F0000-0x0000000005756000-memory.dmp
memory/4972-40-0x0000000005890000-0x00000000058F6000-memory.dmp
memory/4972-41-0x0000000005950000-0x0000000005CA4000-memory.dmp
memory/4972-42-0x0000000005CE0000-0x0000000005CFE000-memory.dmp
memory/4972-43-0x0000000005E00000-0x0000000005E4C000-memory.dmp
memory/4972-44-0x00000000022E0000-0x00000000022F0000-memory.dmp
memory/4972-17-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/4972-46-0x0000000006CE0000-0x0000000006D12000-memory.dmp
memory/4972-47-0x0000000070C00000-0x0000000070C4C000-memory.dmp
memory/4972-57-0x00000000062C0000-0x00000000062DE000-memory.dmp
memory/4972-32-0x0000000005550000-0x0000000005572000-memory.dmp
memory/4972-59-0x0000000007650000-0x0000000007CCA000-memory.dmp
memory/4972-60-0x0000000007010000-0x000000000702A000-memory.dmp
memory/4972-61-0x0000000007080000-0x000000000708A000-memory.dmp
memory/4972-62-0x0000000007290000-0x0000000007326000-memory.dmp
memory/4972-63-0x0000000007210000-0x0000000007221000-memory.dmp
memory/4972-64-0x0000000007240000-0x000000000724E000-memory.dmp
memory/4972-65-0x0000000007250000-0x0000000007264000-memory.dmp
memory/4972-66-0x0000000007350000-0x000000000736A000-memory.dmp
memory/4972-67-0x0000000007330000-0x0000000007338000-memory.dmp
memory/4972-70-0x0000000075020000-0x00000000757D0000-memory.dmp
memory/4972-21-0x00000000022E0000-0x00000000022F0000-memory.dmp
memory/4972-20-0x00000000022E0000-0x00000000022F0000-memory.dmp
memory/4972-18-0x0000000004740000-0x0000000004776000-memory.dmp