Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
19/03/2024, 21:56
General
- Target d733dc46dfe2566e8421041c3b2fb021.exe
- Size 1.3MB
- Sample240319-1tk41agg44
- SHA256 c2ddc44452303e28a0cd78f87dca6bcb961c588307f2158e5c03d39191312128
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.
- 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\d733dc46dfe2566e8421041c3b2fb021.exe"C:\Users\Admin\AppData\Local\Temp\d733dc46dfe2566e8421041c3b2fb021.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\d733dc46dfe2566e8421041c3b2fb021.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
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Downloads
__PSScriptPolicyTest_4ta0wuim.d5n.ps1
memory/316-55-0x0000000004750000-0x0000000004760000-memory.dmp
memory/316-56-0x0000000006B00000-0x0000000006BA3000-memory.dmp
memory/316-68-0x0000000074F50000-0x0000000075700000-memory.dmp
memory/316-65-0x0000000007160000-0x0000000007168000-memory.dmp
memory/316-64-0x0000000007180000-0x000000000719A000-memory.dmp
memory/316-63-0x0000000007080000-0x0000000007094000-memory.dmp
memory/316-62-0x0000000007070000-0x000000000707E000-memory.dmp
memory/316-61-0x0000000007040000-0x0000000007051000-memory.dmp
memory/316-60-0x00000000070C0000-0x0000000007156000-memory.dmp
memory/316-33-0x00000000054D0000-0x0000000005536000-memory.dmp
memory/316-59-0x0000000006EB0000-0x0000000006EBA000-memory.dmp
memory/316-58-0x0000000006E40000-0x0000000006E5A000-memory.dmp
memory/316-57-0x0000000007480000-0x0000000007AFA000-memory.dmp
memory/316-39-0x0000000005B00000-0x0000000005B1E000-memory.dmp
memory/316-16-0x00000000021F0000-0x0000000002226000-memory.dmp
memory/316-17-0x0000000074F50000-0x0000000075700000-memory.dmp
memory/316-54-0x0000000004750000-0x0000000004760000-memory.dmp
memory/316-19-0x0000000004750000-0x0000000004760000-memory.dmp
memory/316-20-0x0000000004D90000-0x00000000053B8000-memory.dmp
memory/316-53-0x0000000006AE0000-0x0000000006AFE000-memory.dmp
memory/316-41-0x000000007EED0000-0x000000007EEE0000-memory.dmp
memory/316-25-0x0000000004B40000-0x0000000004B62000-memory.dmp
memory/316-43-0x0000000070B30000-0x0000000070B7C000-memory.dmp
memory/316-42-0x00000000060E0000-0x0000000006112000-memory.dmp
memory/316-40-0x0000000005B40000-0x0000000005B8C000-memory.dmp
memory/316-27-0x0000000005460000-0x00000000054C6000-memory.dmp
memory/316-38-0x0000000005640000-0x0000000005994000-memory.dmp
memory/1604-15-0x0000000074F50000-0x0000000075700000-memory.dmp
memory/1604-5-0x0000000005340000-0x000000000534A000-memory.dmp
memory/1604-11-0x0000000002C20000-0x0000000002C5A000-memory.dmp
memory/1604-2-0x00000000058E0000-0x0000000005E84000-memory.dmp
memory/1604-3-0x0000000005280000-0x0000000005312000-memory.dmp
memory/1604-4-0x0000000005240000-0x0000000005250000-memory.dmp
memory/1604-10-0x0000000006BF0000-0x0000000006C9A000-memory.dmp
memory/1604-6-0x0000000006A20000-0x0000000006ABC000-memory.dmp
memory/1604-0-0x0000000000720000-0x000000000087C000-memory.dmp
memory/1604-7-0x0000000005820000-0x0000000005832000-memory.dmp
memory/1604-8-0x0000000074F50000-0x0000000075700000-memory.dmp
memory/1604-1-0x0000000074F50000-0x0000000075700000-memory.dmp
memory/1604-9-0x0000000005240000-0x0000000005250000-memory.dmp
memory/4404-12-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4404-26-0x0000000005CC0000-0x0000000005CCA000-memory.dmp
memory/4404-14-0x0000000074F50000-0x0000000075700000-memory.dmp
memory/4404-18-0x0000000005A40000-0x0000000005A50000-memory.dmp
memory/4404-23-0x0000000005990000-0x000000000599A000-memory.dmp
memory/4404-24-0x0000000005C90000-0x0000000005CAE000-memory.dmp
memory/4404-69-0x0000000074F50000-0x0000000075700000-memory.dmp
memory/4404-70-0x0000000005A40000-0x0000000005A50000-memory.dmp