Analysis
- max time kernel
146s - max time network
150s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
- submitted
24/01/2024, 00:58
General
- Target 710560cc572eb0fc3126539a63ad17f2.exe
- Size 441KB
- Sample240124-bbwqcaebfn
- SHA256 432078fa7618131ceb46a0d4cfec6466e50c28c6514ac03fd486f63f8d101ca7
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
217.138.212.57:2018
-
annapro.linkpc.net:2018
-
bcd083ef-bf90-4541-bf76-579f377e7cee
-
activate_away_mode
true
-
backup_connection_host
annapro.linkpc.net
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-04-30T06:57:40.163177036Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
true
-
connect_delay
4000
-
connection_port
2018
-
default_group
5g
-
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
bcd083ef-bf90-4541-bf76-579f377e7cee
-
mutex_timeout
5000
-
prevent_system_sleep
true
-
primary_connection_host
217.138.212.57
-
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
- Detect ZGRat V1 34 IoCs
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- ZGRat
ZGRat is remote access trojan written in C#.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 2 IoCs
- 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 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 28 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\710560cc572eb0fc3126539a63ad17f2.exe"C:\Users\Admin\AppData\Local\Temp\710560cc572eb0fc3126539a63ad17f2.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Yzjcch.vbs"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\csrsss\msbuildd.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Users\Admin\AppData\Local\Temp\RegAsm.exeC:\Users\Admin\AppData\Local\Temp\RegAsm.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- 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 "WAN Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpFD81.tmp"3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WAN Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpFE1E.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
_Yzjcch.vbs
tmpFD81.tmp
tmpFE1E.tmp
RegAsm.exe
memory/864-2218-0x0000000000380000-0x000000000039E000-memory.dmp
memory/864-2217-0x0000000000370000-0x000000000037A000-memory.dmp
memory/864-2219-0x00000000003E0000-0x00000000003EA000-memory.dmp
memory/864-2203-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1624-2211-0x0000000002BA0000-0x0000000002BE0000-memory.dmp
memory/1624-2212-0x0000000002BA0000-0x0000000002BE0000-memory.dmp
memory/1624-2210-0x000000006F7A0000-0x000000006FD4B000-memory.dmp
memory/1624-2207-0x000000006F7A0000-0x000000006FD4B000-memory.dmp
memory/1624-2220-0x000000006F7A0000-0x000000006FD4B000-memory.dmp
memory/2888-29-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-11-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-51-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-49-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-47-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-45-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-43-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-41-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-39-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-37-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-35-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-33-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-31-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-0-0x0000000000E30000-0x0000000000EA4000-memory.dmp
memory/2888-27-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-23-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-21-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-19-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-17-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-15-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-13-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-53-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-1053-0x00000000009D0000-0x0000000000A10000-memory.dmp
memory/2888-9-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-7-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-6-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-4-0x0000000005020000-0x000000000508E000-memory.dmp
memory/2888-55-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-59-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-2202-0x00000000746D0000-0x0000000074DBE000-memory.dmp
memory/2888-61-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-63-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-65-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-67-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-69-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-57-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-25-0x0000000007FF0000-0x000000000805E000-memory.dmp
memory/2888-5-0x0000000007FF0000-0x0000000008064000-memory.dmp
memory/2888-3-0x00000000746D0000-0x0000000074DBE000-memory.dmp
memory/2888-2-0x00000000009D0000-0x0000000000A10000-memory.dmp
memory/2888-1-0x00000000746D0000-0x0000000074DBE000-memory.dmp