Analysis
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max time kernel
142s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
24-07-2023 14:24
Static task
static1
Behavioral task
behavioral1
Sample
07d9eeffaac90b7fcd1bf8b3930a2044.exe
Resource
win7-20230712-en
General
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Target
07d9eeffaac90b7fcd1bf8b3930a2044.exe
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Size
280KB
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MD5
07d9eeffaac90b7fcd1bf8b3930a2044
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SHA1
445b329dc821c72cdbd167576cb4e5654b49f1ae
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SHA256
6427336ade955128d895921dbb9bbcc379ad910690ff63f6deff3794a2086c8c
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SHA512
c318090ef0c4bd573b68b8539b87be677114e25bbdaaec5b360ac5365fc76107ee17e3533231ef80fab71f1455d690c80b950c38e0aeee480d5b0869bdbf73fc
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SSDEEP
6144:4mRcsQAKqVYM8AFtE3GK9U5lB88PFdvOGa7XDdK:lRcnYlRFjn8ebOG6B
Malware Config
Extracted
nanocore
1.2.2.0
secur3.duckdns.org:57788
127.0.0.1:57788
24bcb08e-b9d9-4fab-833c-942bd08a17be
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activate_away_mode
true
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backup_connection_host
127.0.0.1
- backup_dns_server
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buffer_size
65535
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build_time
2023-05-05T14:17:00.693036336Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
-
clear_zone_identifier
true
-
connect_delay
4000
-
connection_port
57788
-
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
-
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
24bcb08e-b9d9-4fab-833c-942bd08a17be
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mutex_timeout
5000
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prevent_system_sleep
true
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primary_connection_host
secur3.duckdns.org
- primary_dns_server
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request_elevation
true
-
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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Processes:
regasm.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA regasm.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
regasm.exepid process 2196 regasm.exe 2196 regasm.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
07d9eeffaac90b7fcd1bf8b3930a2044.exedescription pid process target process PID 2600 set thread context of 2196 2600 07d9eeffaac90b7fcd1bf8b3930a2044.exe regasm.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regasm.exepid process 2196 regasm.exe 2196 regasm.exe 2196 regasm.exe 2196 regasm.exe 2196 regasm.exe 2196 regasm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
regasm.exepid process 2196 regasm.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
07d9eeffaac90b7fcd1bf8b3930a2044.exepid process 2600 07d9eeffaac90b7fcd1bf8b3930a2044.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
regasm.exedescription pid process Token: SeDebugPrivilege 2196 regasm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
07d9eeffaac90b7fcd1bf8b3930a2044.exepid process 2600 07d9eeffaac90b7fcd1bf8b3930a2044.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
07d9eeffaac90b7fcd1bf8b3930a2044.exedescription pid process target process PID 2600 wrote to memory of 2196 2600 07d9eeffaac90b7fcd1bf8b3930a2044.exe regasm.exe PID 2600 wrote to memory of 2196 2600 07d9eeffaac90b7fcd1bf8b3930a2044.exe regasm.exe PID 2600 wrote to memory of 2196 2600 07d9eeffaac90b7fcd1bf8b3930a2044.exe regasm.exe PID 2600 wrote to memory of 2196 2600 07d9eeffaac90b7fcd1bf8b3930a2044.exe regasm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\07d9eeffaac90b7fcd1bf8b3930a2044.exe"C:\Users\Admin\AppData\Local\Temp\07d9eeffaac90b7fcd1bf8b3930a2044.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\regasm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\regasm.exe"2⤵
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2196
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