Analysis
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max time kernel
148s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
21-03-2023 14:40
Static task
static1
Behavioral task
behavioral1
Sample
fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe
Resource
win7-20230220-en
General
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Target
fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe
-
Size
405KB
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MD5
27b0bbbcfc777cf7245a2ae4f9d01b69
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SHA1
7a7f499a9cb5994f1135cb5935c3f6843962f15f
-
SHA256
fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf
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SHA512
9c69b9c103517ac1b93b59b4ff550225b09cef212d02dab7834fa6c63d75f7e05dc3f5f2a67810a6a8e83acf56e9af9aac3105f9736665f4a063d85d852a9d9e
-
SSDEEP
12288:dnXcypamQ4HucawiYJPhjV1VxoMmwldE:NHuc9iW71VxXlu
Malware Config
Extracted
nanocore
1.2.2.0
williamscomputer101.ddns.net:16554
91.193.75.135:16554
768970b2-01a6-4c33-a5ae-8582afdb6c49
-
activate_away_mode
true
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backup_connection_host
91.193.75.135
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2022-11-30T13:00:18.988692336Z
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bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
16554
-
default_group
Billionare
-
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
768970b2-01a6-4c33-a5ae-8582afdb6c49
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
williamscomputer101.ddns.net
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primary_dns_server
8.8.8.8
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request_elevation
true
-
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
-
use_custom_dns_server
false
-
version
1.2.2.0
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wan_timeout
8000
Signatures
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
powershell.exeaspnet_compiler.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows\CurrentVersion\Run\RZTHXHelper = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Recent\\RZTHX\\RZTHXHelper.exe" powershell.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Service = "C:\\Program Files (x86)\\SCSI Service\\scsisv.exe" aspnet_compiler.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exedescription pid process target process PID 928 set thread context of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe -
Drops file in Program Files directory 2 IoCs
Processes:
aspnet_compiler.exedescription ioc process File created C:\Program Files (x86)\SCSI Service\scsisv.exe aspnet_compiler.exe File opened for modification C:\Program Files (x86)\SCSI Service\scsisv.exe aspnet_compiler.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exefc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exeaspnet_compiler.exepid process 268 powershell.exe 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe 564 aspnet_compiler.exe 564 aspnet_compiler.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
aspnet_compiler.exepid process 564 aspnet_compiler.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exefc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exeaspnet_compiler.exedescription pid process Token: SeDebugPrivilege 268 powershell.exe Token: SeDebugPrivilege 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe Token: SeDebugPrivilege 564 aspnet_compiler.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exedescription pid process target process PID 928 wrote to memory of 268 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe powershell.exe PID 928 wrote to memory of 268 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe powershell.exe PID 928 wrote to memory of 268 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe powershell.exe PID 928 wrote to memory of 268 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe powershell.exe PID 928 wrote to memory of 1648 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 1648 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 1648 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 1648 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe PID 928 wrote to memory of 564 928 fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe aspnet_compiler.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe"C:\Users\Admin\AppData\Local\Temp\fc45e859218d968355dab61237025b551710f8329c1e50cf10342826222c21bf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Remove -ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'RZTHXHelper';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'RZTHXHelper' -Value '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RZTHX\RZTHXHelper.exe"' -PropertyType 'String'2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.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 Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/564-84-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/564-101-0x0000000004C60000-0x0000000004CA0000-memory.dmpFilesize
256KB
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memory/564-100-0x0000000004C60000-0x0000000004CA0000-memory.dmpFilesize
256KB
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memory/564-99-0x00000000003F0000-0x00000000003FA000-memory.dmpFilesize
40KB
-
memory/564-98-0x00000000004F0000-0x000000000050E000-memory.dmpFilesize
120KB
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memory/564-97-0x00000000003E0000-0x00000000003EA000-memory.dmpFilesize
40KB
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memory/564-93-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/564-91-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/564-89-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/564-87-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/564-85-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/564-88-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/564-86-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/928-65-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-54-0x00000000009A0000-0x0000000000A06000-memory.dmpFilesize
408KB
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memory/928-81-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-77-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-79-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-73-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-75-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-69-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-71-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-83-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-67-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-94-0x0000000004A15000-0x0000000004A33000-memory.dmpFilesize
120KB
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memory/928-63-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-61-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-60-0x00000000003D0000-0x00000000003E5000-memory.dmpFilesize
84KB
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memory/928-59-0x00000000003D0000-0x00000000003EC000-memory.dmpFilesize
112KB
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memory/928-55-0x0000000004A10000-0x0000000004A50000-memory.dmpFilesize
256KB