Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10_x64 -
resource
win10 -
submitted
24-06-2020 15:09
Static task
static1
Behavioral task
behavioral1
Sample
PO 88971111.exe
Resource
win7
General
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Target
PO 88971111.exe
-
Size
1.3MB
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MD5
1ba1a3553123eb90a47a26df297a2f59
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SHA1
6fc2f0f2ff1672fc79295c835bc3091c1e99b6e2
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SHA256
1c2fafc2031b76ab4caf3f91474f023321703a820209da4591192b6ca7cd09d2
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SHA512
0eb35918391112a0e8b3f0dbfd4a4bbf832c2c564ace73212241c71f9a8d42233abb2687261885c4a57db3f93ff60260b7712752e3a4a7313dbc7e1ef9bd54fe
Malware Config
Extracted
nanocore
1.2.2.0
185.140.53.12:1985
76b99e5b-25c3-4464-b518-9c818a6b16d3
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activate_away_mode
true
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backup_connection_host
127.0.0.1
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-03-16T15:41:37.080532036Z
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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
false
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connect_delay
4000
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connection_port
1985
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default_group
kdott
-
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
76b99e5b-25c3-4464-b518-9c818a6b16d3
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mutex_timeout
5000
-
prevent_system_sleep
true
-
primary_connection_host
185.140.53.12
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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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Suspicious use of SendNotifyMessage 3 IoCs
Processes:
PO 88971111.exepid process 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe -
Suspicious behavior: EnumeratesProcesses 29 IoCs
Processes:
MSBuild.exePO 88971111.exepid process 3812 MSBuild.exe 3812 MSBuild.exe 3812 MSBuild.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe -
Processes:
MSBuild.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA MSBuild.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
PO 88971111.exepid process 3024 PO 88971111.exe 3024 PO 88971111.exe 3024 PO 88971111.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
PO 88971111.exedescription pid process target process PID 3024 wrote to memory of 3812 3024 PO 88971111.exe MSBuild.exe PID 3024 wrote to memory of 3812 3024 PO 88971111.exe MSBuild.exe PID 3024 wrote to memory of 3812 3024 PO 88971111.exe MSBuild.exe PID 3024 wrote to memory of 3812 3024 PO 88971111.exe MSBuild.exe PID 3024 wrote to memory of 3812 3024 PO 88971111.exe MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO 88971111.exedescription pid process target process PID 3024 set thread context of 3812 3024 PO 88971111.exe MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 3812 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
MSBuild.exepid process 3812 MSBuild.exe -
Drops file in Program Files directory 2 IoCs
Processes:
MSBuild.exedescription ioc process File opened for modification C:\Program Files (x86)\DDP Subsystem\ddpss.exe MSBuild.exe File created C:\Program Files (x86)\DDP Subsystem\ddpss.exe MSBuild.exe -
Adds Run entry to start application 2 TTPs 1 IoCs
Processes:
MSBuild.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Subsystem = "C:\\Program Files (x86)\\DDP Subsystem\\ddpss.exe" MSBuild.exe -
Drops startup file 1 IoCs
Processes:
PO 88971111.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tabcal.url PO 88971111.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO 88971111.exe"C:\Users\Admin\AppData\Local\Temp\PO 88971111.exe"1⤵
- Suspicious use of SendNotifyMessage
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Drops startup file
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Checks whether UAC is enabled
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: GetForegroundWindowSpam
- Drops file in Program Files directory
- Adds Run entry to start application