Analysis
-
max time kernel
150s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
05-08-2024 06:46
Static task
static1
Behavioral task
behavioral1
Sample
7Dh9pl21mjWDN3A.exe
Resource
win7-20240704-en
General
-
Target
7Dh9pl21mjWDN3A.exe
-
Size
670KB
-
MD5
b40a08e60b9b7a3504d142c07ba18f2f
-
SHA1
786e1981e4109f32da5b5c93221a3b9e8669046a
-
SHA256
0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3
-
SHA512
7beea84ee5405da69039fd36819f73e8165d1eebdaa8df97552495556969d9a1b7c57cc81c566c91c006ab1a288e828dde1dd7c0dca819c9e05f47bbe19a1876
-
SSDEEP
12288:/nxa/zmcDXmuUMtKeYSsz0NEFx8HnzNN6YZ/g5DO0lD9GIbzH:/nxaakuMsetszEELwnzTFG5flD9rL
Malware Config
Extracted
nanocore
1.2.2.0
december2n.duckdns.org:65140
december2nd.ddns.net:65140
5e26ab75-1b3f-4c8b-a159-3a61aeef3310
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activate_away_mode
false
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backup_connection_host
december2nd.ddns.net
- backup_dns_server
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buffer_size
65538
-
build_time
2024-05-07T02:47:09.586481736Z
-
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
65140
-
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
5e26ab75-1b3f-4c8b-a159-3a61aeef3310
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
december2n.duckdns.org
- primary_dns_server
-
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
8009
Signatures
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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.
-
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\LAN Subsystem = "C:\\Program Files (x86)\\LAN Subsystem\\lanss.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
7Dh9pl21mjWDN3A.exedescription pid process target process PID 1700 set thread context of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe -
Drops file in Program Files directory 2 IoCs
Processes:
RegSvcs.exedescription ioc process File created C:\Program Files (x86)\LAN Subsystem\lanss.exe RegSvcs.exe File opened for modification C:\Program Files (x86)\LAN Subsystem\lanss.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:
schtasks.exeschtasks.exe7Dh9pl21mjWDN3A.exepowershell.exeschtasks.exeRegSvcs.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 7Dh9pl21mjWDN3A.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 -
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 2752 schtasks.exe 2648 schtasks.exe 2208 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 11 IoCs
Processes:
7Dh9pl21mjWDN3A.exepowershell.exeRegSvcs.exepid process 1700 7Dh9pl21mjWDN3A.exe 1700 7Dh9pl21mjWDN3A.exe 1700 7Dh9pl21mjWDN3A.exe 1700 7Dh9pl21mjWDN3A.exe 1700 7Dh9pl21mjWDN3A.exe 1700 7Dh9pl21mjWDN3A.exe 1700 7Dh9pl21mjWDN3A.exe 2712 powershell.exe 2736 RegSvcs.exe 2736 RegSvcs.exe 2736 RegSvcs.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegSvcs.exepid process 2736 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
7Dh9pl21mjWDN3A.exepowershell.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1700 7Dh9pl21mjWDN3A.exe Token: SeDebugPrivilege 2712 powershell.exe Token: SeDebugPrivilege 2736 RegSvcs.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
7Dh9pl21mjWDN3A.exeRegSvcs.exedescription pid process target process PID 1700 wrote to memory of 2712 1700 7Dh9pl21mjWDN3A.exe powershell.exe PID 1700 wrote to memory of 2712 1700 7Dh9pl21mjWDN3A.exe powershell.exe PID 1700 wrote to memory of 2712 1700 7Dh9pl21mjWDN3A.exe powershell.exe PID 1700 wrote to memory of 2712 1700 7Dh9pl21mjWDN3A.exe powershell.exe PID 1700 wrote to memory of 2752 1700 7Dh9pl21mjWDN3A.exe schtasks.exe PID 1700 wrote to memory of 2752 1700 7Dh9pl21mjWDN3A.exe schtasks.exe PID 1700 wrote to memory of 2752 1700 7Dh9pl21mjWDN3A.exe schtasks.exe PID 1700 wrote to memory of 2752 1700 7Dh9pl21mjWDN3A.exe schtasks.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 1700 wrote to memory of 2736 1700 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2736 wrote to memory of 2648 2736 RegSvcs.exe schtasks.exe PID 2736 wrote to memory of 2648 2736 RegSvcs.exe schtasks.exe PID 2736 wrote to memory of 2648 2736 RegSvcs.exe schtasks.exe PID 2736 wrote to memory of 2648 2736 RegSvcs.exe schtasks.exe PID 2736 wrote to memory of 2208 2736 RegSvcs.exe schtasks.exe PID 2736 wrote to memory of 2208 2736 RegSvcs.exe schtasks.exe PID 2736 wrote to memory of 2208 2736 RegSvcs.exe schtasks.exe PID 2736 wrote to memory of 2208 2736 RegSvcs.exe schtasks.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\7Dh9pl21mjWDN3A.exe"C:\Users\Admin\AppData\Local\Temp\7Dh9pl21mjWDN3A.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mzHFviYTm.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2712 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mzHFviYTm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA1E.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2752 -
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:2736 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "LAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC8E.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2648 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "LAN Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD5A.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2208
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
1KB
MD52e80714a116b395af12b2a4a129e69b4
SHA17bc755e9d54a2214e0220d3628316a2f63dad5c7
SHA256236e381f7ae9ca132e253098f961b3538c37df00831716a0caea7d3952cf33ab
SHA5127fa5860f3ba090389376eec9ed4c9f57303df0db3b088d51cb312a29b5304b8c194a3174a21d6efd9b5c158ecf4761014f9ef0b9d0e073a33345d692cfe6c161
-
Filesize
1KB
MD58cad1b41587ced0f1e74396794f31d58
SHA111054bf74fcf5e8e412768035e4dae43aa7b710f
SHA2563086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c
SHA51299c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef
-
Filesize
1KB
MD5924694e208642d4d8a4c7e0f0cba0de1
SHA187e9496a918036c3e3902f125b95a47e38548828
SHA2568de0bab59a9fe15f312e81a373382ed992ce5110deb3813f663b92cfc5eae0b6
SHA512ef3cfc08df53777f13fb51fdc0269f6f686c0df57c4dd72f395dc53d1d8ef2b08e33c3601507a45c3cc31a25b70ebf365d0fa93db64e1e851173216a45c49c2c