Analysis
-
max time kernel
141s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
03-08-2024 01:56
Static task
static1
Behavioral task
behavioral1
Sample
a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
Resource
win7-20240704-en
General
-
Target
a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe
-
Size
591KB
-
MD5
36d910db5480443e681e9ccaae98daa5
-
SHA1
37aede51253ea0e6e3c032e5131e51285654e711
-
SHA256
a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343
-
SHA512
e7556c058431cc618d0482e108f6fb78427c751c661c32c1d006a4bdc63f5a6801b08e7aee87b9a0e8025be33ce7a11d2ee7360725552630552ef1bd4d97e50c
-
SSDEEP
12288:6XHafsJMsvTewct5Fc4QqGNwTgQToxuf0NsUcp2Zi7XLVH9EW:WafQMUTe5e4QpwI00NmOM0
Malware Config
Extracted
nanocore
1.2.2.0
213.152.161.181:45808
724426ed-9454-4c88-a403-247ed8c8ccb6
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
84.200.70.40
-
buffer_size
65535
-
build_time
2024-03-23T08:16:32.230976436Z
-
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
45808
-
default_group
Default
-
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
724426ed-9454-4c88-a403-247ed8c8ccb6
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
213.152.161.181
-
primary_dns_server
84.200.69.80
-
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
-
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.
Processes:
a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DNS Monitor = "C:\\Program Files (x86)\\DNS Monitor\\dnsmon.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exedescription pid process target process PID 2216 set thread context of 4412 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe RegSvcs.exe -
Drops file in Program Files directory 2 IoCs
Processes:
RegSvcs.exedescription ioc process File created C:\Program Files (x86)\DNS Monitor\dnsmon.exe RegSvcs.exe File opened for modification C:\Program Files (x86)\DNS Monitor\dnsmon.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exepowershell.exeschtasks.exeRegSvcs.exeschtasks.exeschtasks.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 2608 schtasks.exe 636 schtasks.exe 1984 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exepowershell.exeRegSvcs.exepid process 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe 4888 powershell.exe 4888 powershell.exe 4412 RegSvcs.exe 4412 RegSvcs.exe 4412 RegSvcs.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegSvcs.exepid process 4412 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exepowershell.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe Token: SeDebugPrivilege 4888 powershell.exe Token: SeDebugPrivilege 4412 RegSvcs.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exeRegSvcs.exedescription pid process target process PID 2216 wrote to memory of 4888 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe powershell.exe PID 2216 wrote to memory of 4888 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe powershell.exe PID 2216 wrote to memory of 4888 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe powershell.exe PID 2216 wrote to memory of 636 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe schtasks.exe PID 2216 wrote to memory of 636 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe schtasks.exe PID 2216 wrote to memory of 636 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe schtasks.exe PID 2216 wrote to memory of 4412 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe RegSvcs.exe PID 2216 wrote to memory of 4412 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe RegSvcs.exe PID 2216 wrote to memory of 4412 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe RegSvcs.exe PID 2216 wrote to memory of 4412 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe RegSvcs.exe PID 2216 wrote to memory of 4412 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe RegSvcs.exe PID 2216 wrote to memory of 4412 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe RegSvcs.exe PID 2216 wrote to memory of 4412 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe RegSvcs.exe PID 2216 wrote to memory of 4412 2216 a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe RegSvcs.exe PID 4412 wrote to memory of 1984 4412 RegSvcs.exe schtasks.exe PID 4412 wrote to memory of 1984 4412 RegSvcs.exe schtasks.exe PID 4412 wrote to memory of 1984 4412 RegSvcs.exe schtasks.exe PID 4412 wrote to memory of 2608 4412 RegSvcs.exe schtasks.exe PID 4412 wrote to memory of 2608 4412 RegSvcs.exe schtasks.exe PID 4412 wrote to memory of 2608 4412 RegSvcs.exe schtasks.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe"C:\Users\Admin\AppData\Local\Temp\a9b2c3cfd1964fc818c4ba2955f17482db01a5e6130dcbdc93272c34ddb31343.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2216 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gLCtqBlZtm.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4888 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gLCtqBlZtm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFAB.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:636 -
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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4412 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DNS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp14BC.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1984 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DNS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1682.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2608
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
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
1KB
MD58cad1b41587ced0f1e74396794f31d58
SHA111054bf74fcf5e8e412768035e4dae43aa7b710f
SHA2563086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c
SHA51299c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef
-
Filesize
1KB
MD57620b805f7bc12c79e126656c858d0e0
SHA189f09b8b4ef1fc421ddf5ed0cbbe012fab7fd666
SHA2564d6ea014d135bdc4a5fd4281ce705672561b0279deab4302e06cbfe95e1080a6
SHA512b02ac735c98b20020251a23ffa1b0308ad3a1c99593a15a8020d742472b0d5c36caa31c6ca2372e88cfd3b6792206ea7920162c2a33c83da24f0098c0513f562
-
Filesize
1KB
MD54ebad14e512c467bc00dcd6d083c0f86
SHA1b4395939c7bfed910abdcf21b08a4424bfd89251
SHA256e7ad23468cba9022e48a2c48f57ba2525f39c0219499a8eba001ece04186946b
SHA512aa781786fe736bba2f76ab81dad441d767dd99f9f01ce7fb629c331caf0c581918910eacdbdc9352c1a54fd56ac27ab4509acda4be91bffda65ab6adee2216a7