Analysis
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max time kernel
113s -
max time network
155s -
platform
windows7_x64 -
resource
win7 -
submitted
30-06-2020 13:14
Static task
static1
Behavioral task
behavioral1
Sample
7DcshRRKyE3bON7.exe
Resource
win7
General
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Target
7DcshRRKyE3bON7.exe
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Size
329KB
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MD5
474f0117b9ffba8ab212f72abb791b45
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SHA1
b22b789acafface4f0d1140d8f12ef425d8da1b6
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SHA256
6ece00da69537d12d933cfc710ef0be2f76ee8d39c111ba1726bd47c8fb8acb1
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SHA512
067d8f7b027652b95766df7ad01cce85cf836e6f921b113658ef93704eaf232a2724de16ba9a945b6890fe930b9efdafcf8e519d0cf988e4bce2d87b3bd843c8
Malware Config
Extracted
nanocore
1.2.2.0
nobiwideget.dvrdns.org:54001
db8a0fd6-d6ea-4208-a160-90f25cc9cef1
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activate_away_mode
true
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backup_connection_host
nobiwideget.dvrdns.org
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-03-19T18:29:06.061121136Z
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bypass_user_account_control
false
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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
54001
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default_group
bin
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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
db8a0fd6-d6ea-4208-a160-90f25cc9cef1
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
nobiwideget.dvrdns.org
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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 AdjustPrivilegeToken 1 IoCs
Processes:
7DcshRRKyE3bON7.exedescription pid process Token: SeDebugPrivilege 1884 7DcshRRKyE3bON7.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
7DcshRRKyE3bON7.exepid process 1884 7DcshRRKyE3bON7.exe -
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 1752 schtasks.exe 1920 schtasks.exe 1968 schtasks.exe -
Drops file in Program Files directory 2 IoCs
Processes:
7DcshRRKyE3bON7.exedescription ioc process File created C:\Program Files (x86)\WAN Subsystem\wanss.exe 7DcshRRKyE3bON7.exe File opened for modification C:\Program Files (x86)\WAN Subsystem\wanss.exe 7DcshRRKyE3bON7.exe -
Adds Run entry to start application 2 TTPs 1 IoCs
Processes:
7DcshRRKyE3bON7.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WAN Subsystem = "C:\\Program Files (x86)\\WAN Subsystem\\wanss.exe" 7DcshRRKyE3bON7.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
7DcshRRKyE3bON7.exe7DcshRRKyE3bON7.exedescription pid process target process PID 1516 wrote to memory of 1752 1516 7DcshRRKyE3bON7.exe schtasks.exe PID 1516 wrote to memory of 1752 1516 7DcshRRKyE3bON7.exe schtasks.exe PID 1516 wrote to memory of 1752 1516 7DcshRRKyE3bON7.exe schtasks.exe PID 1516 wrote to memory of 1752 1516 7DcshRRKyE3bON7.exe schtasks.exe PID 1516 wrote to memory of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe PID 1516 wrote to memory of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe PID 1516 wrote to memory of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe PID 1516 wrote to memory of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe PID 1516 wrote to memory of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe PID 1516 wrote to memory of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe PID 1516 wrote to memory of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe PID 1516 wrote to memory of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe PID 1516 wrote to memory of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe PID 1884 wrote to memory of 1920 1884 7DcshRRKyE3bON7.exe schtasks.exe PID 1884 wrote to memory of 1920 1884 7DcshRRKyE3bON7.exe schtasks.exe PID 1884 wrote to memory of 1920 1884 7DcshRRKyE3bON7.exe schtasks.exe PID 1884 wrote to memory of 1920 1884 7DcshRRKyE3bON7.exe schtasks.exe PID 1884 wrote to memory of 1968 1884 7DcshRRKyE3bON7.exe schtasks.exe PID 1884 wrote to memory of 1968 1884 7DcshRRKyE3bON7.exe schtasks.exe PID 1884 wrote to memory of 1968 1884 7DcshRRKyE3bON7.exe schtasks.exe PID 1884 wrote to memory of 1968 1884 7DcshRRKyE3bON7.exe schtasks.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
7DcshRRKyE3bON7.exedescription pid process target process PID 1516 set thread context of 1884 1516 7DcshRRKyE3bON7.exe 7DcshRRKyE3bON7.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
7DcshRRKyE3bON7.exepid process 1884 7DcshRRKyE3bON7.exe 1884 7DcshRRKyE3bON7.exe 1884 7DcshRRKyE3bON7.exe 1884 7DcshRRKyE3bON7.exe -
Processes:
7DcshRRKyE3bON7.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 7DcshRRKyE3bON7.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7DcshRRKyE3bON7.exe"C:\Users\Admin\AppData\Local\Temp\7DcshRRKyE3bON7.exe"1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QUORDkPJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8130.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\7DcshRRKyE3bON7.exe"{path}"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: GetForegroundWindowSpam
- Drops file in Program Files directory
- Adds Run entry to start application
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Checks whether UAC is enabled
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp85F1.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WAN Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp868E.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp8130.tmp
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C:\Users\Admin\AppData\Local\Temp\tmp85F1.tmp
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C:\Users\Admin\AppData\Local\Temp\tmp868E.tmp
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memory/1752-0-0x0000000000000000-mapping.dmp
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memory/1884-2-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1884-3-0x000000000041E792-mapping.dmp
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memory/1884-4-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1884-5-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1920-6-0x0000000000000000-mapping.dmp
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memory/1968-8-0x0000000000000000-mapping.dmp