Analysis
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max time kernel
144s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system -
submitted
09-07-2024 03:56
Static task
static1
Behavioral task
behavioral1
Sample
P1-635487.exe
Resource
win7-20240708-en
General
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Target
P1-635487.exe
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Size
3.5MB
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MD5
540df7784dd16658486dc2caf73ca2a5
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SHA1
e203fbc4c4fc05def6784953933dc15c7495f96d
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SHA256
1b5a9c840d8932be77aa43135038742007e1e1ca5d9b8954966ddedb703a0ee4
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SHA512
e41dcf7c66ba14b39423863975d9cf91e008f67bff103035dd34c6acf113abd84fdb4a72751a060f63852d5a34a17db5f95d77a648515cee15f787da3a0e2cf9
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SSDEEP
49152:6Ob699GhOeeYrHhxNg0Dobuh9CYFQqgFClfN8SIP1aJ5+BEh:69vYrdnHSSI4JYBEh
Malware Config
Extracted
nanocore
1.2.2.0
arkseven7002.ddns.net:7727
10a66da6-234d-4e15-acda-574830a08fca
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activate_away_mode
true
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backup_connection_host
arkseven7002.ddns.net
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2024-04-18T01:03:25.467183836Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
false
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clear_zone_identifier
true
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connect_delay
4000
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connection_port
7727
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default_group
BLESSED BOTS
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
10a66da6-234d-4e15-acda-574830a08fca
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mutex_timeout
5000
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prevent_system_sleep
true
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primary_connection_host
arkseven7002.ddns.net
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
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run_on_startup
false
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set_critical_process
true
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timeout_interval
5000
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Signatures
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Disables RegEdit via registry modification 1 IoCs
Processes:
P1-635487.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" P1-635487.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
regasm.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Manager = "C:\\Program Files (x86)\\WPA Manager\\wpamgr.exe" regasm.exe -
Processes:
regasm.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA regasm.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
P1-635487.exedescription pid process target process PID 620 set thread context of 4724 620 P1-635487.exe regasm.exe -
Drops file in Program Files directory 2 IoCs
Processes:
regasm.exedescription ioc process File created C:\Program Files (x86)\WPA Manager\wpamgr.exe regasm.exe File opened for modification C:\Program Files (x86)\WPA Manager\wpamgr.exe regasm.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regasm.exepid process 4724 regasm.exe 4724 regasm.exe 4724 regasm.exe 4724 regasm.exe 4724 regasm.exe 4724 regasm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
regasm.exepid process 4724 regasm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
regasm.exedescription pid process Token: SeDebugPrivilege 4724 regasm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
P1-635487.exedescription pid process target process PID 620 wrote to memory of 4724 620 P1-635487.exe regasm.exe PID 620 wrote to memory of 4724 620 P1-635487.exe regasm.exe PID 620 wrote to memory of 4724 620 P1-635487.exe regasm.exe PID 620 wrote to memory of 4724 620 P1-635487.exe regasm.exe PID 620 wrote to memory of 4724 620 P1-635487.exe regasm.exe PID 620 wrote to memory of 4724 620 P1-635487.exe regasm.exe PID 620 wrote to memory of 4724 620 P1-635487.exe regasm.exe PID 620 wrote to memory of 4724 620 P1-635487.exe regasm.exe -
System policy modification 1 TTPs 2 IoCs
Processes:
P1-635487.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1" P1-635487.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" P1-635487.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\P1-635487.exe"C:\Users\Admin\AppData\Local\Temp\P1-635487.exe"1⤵
- Disables RegEdit via registry modification
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵
- 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
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/4724-0-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4724-1-0x000000007478E000-0x000000007478F000-memory.dmpFilesize
4KB
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memory/4724-2-0x0000000005880000-0x0000000005E24000-memory.dmpFilesize
5.6MB
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memory/4724-3-0x00000000051E0000-0x0000000005272000-memory.dmpFilesize
584KB
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memory/4724-4-0x0000000005370000-0x000000000540C000-memory.dmpFilesize
624KB
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memory/4724-5-0x00000000052A0000-0x00000000052AA000-memory.dmpFilesize
40KB
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memory/4724-8-0x0000000005330000-0x000000000533A000-memory.dmpFilesize
40KB
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memory/4724-9-0x0000000005340000-0x000000000535E000-memory.dmpFilesize
120KB
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memory/4724-10-0x0000000005860000-0x000000000586A000-memory.dmpFilesize
40KB
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memory/4724-13-0x0000000006970000-0x0000000006982000-memory.dmpFilesize
72KB
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memory/4724-14-0x0000000006980000-0x000000000699A000-memory.dmpFilesize
104KB
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memory/4724-15-0x00000000069B0000-0x00000000069BE000-memory.dmpFilesize
56KB
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memory/4724-16-0x00000000069C0000-0x00000000069D2000-memory.dmpFilesize
72KB
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memory/4724-17-0x00000000069D0000-0x00000000069DE000-memory.dmpFilesize
56KB
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memory/4724-18-0x00000000069E0000-0x00000000069EC000-memory.dmpFilesize
48KB
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memory/4724-19-0x00000000069F0000-0x0000000006A04000-memory.dmpFilesize
80KB
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memory/4724-20-0x0000000006A00000-0x0000000006A10000-memory.dmpFilesize
64KB
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memory/4724-21-0x0000000006A20000-0x0000000006A34000-memory.dmpFilesize
80KB
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memory/4724-22-0x0000000006A40000-0x0000000006A4E000-memory.dmpFilesize
56KB
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memory/4724-23-0x0000000006A50000-0x0000000006A7E000-memory.dmpFilesize
184KB
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memory/4724-24-0x0000000006A90000-0x0000000006AA4000-memory.dmpFilesize
80KB
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memory/4724-25-0x0000000006B10000-0x0000000006B76000-memory.dmpFilesize
408KB
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memory/4724-27-0x000000007478E000-0x000000007478F000-memory.dmpFilesize
4KB