Analysis
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max time kernel
152s -
max time network
157s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
26/11/2022, 23:15
Static task
static1
Behavioral task
behavioral1
Sample
0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe
Resource
win7-20220812-en
General
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Target
0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe
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Size
242KB
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MD5
802161b522febd7ba7be083c0048a4d9
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SHA1
a7a0ecb14244ab9d2b0ae6af2ac247735c009f22
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SHA256
0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88
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SHA512
b8080c74bb03a7152fe3e42ad9f902e231f9d96ffa1fe1618a539c6ef620d3f900c18955b62c365ac793fcafd2577a2b15188859b34b31dbfc3b18d983bd6f97
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SSDEEP
6144:bnC/C2MWOc+4y01S2ZHT6K5zkV054owTuh8zpF:G/C2mc+4I2ZmK5z+05pw+kH
Malware Config
Extracted
nanocore
1.2.2.0
appleassist.mooo.com:1604
4d16f164-a540-4ff4-a5b5-f50ba764c8b5
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activate_away_mode
true
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backup_connection_host
appleassist.mooo.com
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2015-03-13T05:14:59.320936636Z
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bypass_user_account_control
true
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bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
1604
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default_group
Default
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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
4d16f164-a540-4ff4-a5b5-f50ba764c8b5
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
appleassist.mooo.com
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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
true
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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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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Roaming\\NlwMFXEVNkpPcY8n\\CUsl3ekpMaOc.exe\",explorer.exe" 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1364 set thread context of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27 -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1364 wrote to memory of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27 PID 1364 wrote to memory of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27 PID 1364 wrote to memory of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27 PID 1364 wrote to memory of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27 PID 1364 wrote to memory of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27 PID 1364 wrote to memory of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27 PID 1364 wrote to memory of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27 PID 1364 wrote to memory of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27 PID 1364 wrote to memory of 1292 1364 0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe"C:\Users\Admin\AppData\Local\Temp\0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe"1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1364 -
C:\Users\Admin\AppData\Local\Temp\0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe"C:\Users\Admin\AppData\Local\Temp\0f3cf0fa1f66dbf9dfdb4df263777cd970ffb085e94ac0a3285bd40c2b445a88.exe"2⤵
- Checks whether UAC is enabled
PID:1292
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