Analysis
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max time kernel
147s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
14/11/2022, 07:02
Static task
static1
Behavioral task
behavioral1
Sample
112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe
Resource
win7-20220901-en
General
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Target
112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe
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Size
1.8MB
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MD5
11eb0dd8239cfec0e1b8e55b7d6c3688
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SHA1
ac67d05ea9de4dea723da346d027d8744a40e6bf
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SHA256
112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5
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SHA512
dae1bcca351572876430c0dc23e5a5389c978683628c1f6e321f9f858052b90b08bdfebe87b98e716cf2e1f2c65948bf44d242a2c3221933d018fbd99143d8dd
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SSDEEP
24576:8i56XwFnb6e49Pu0CCnYQb6VO9iovKHRKc:
Malware Config
Extracted
nanocore
1.2.2.0
rze6.sytes.net:8000
0aeffa29-f3e3-4c27-b5c4-5ee7e27a451f
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activate_away_mode
true
- backup_connection_host
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2022-07-19T10:27:50.574421636Z
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bypass_user_account_control
true
- 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
8000
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default_group
OCT
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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
0aeffa29-f3e3-4c27-b5c4-5ee7e27a451f
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
rze6.sytes.net
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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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wndndwzajse = "\"C:\\Users\\Admin\\AppData\\Roaming\\Xhucnfxdy\\Wndndwzajse.exe\"" 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1696 set thread context of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1124 powershell.exe 336 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 336 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 336 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe Token: SeDebugPrivilege 1124 powershell.exe Token: SeDebugPrivilege 336 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1696 wrote to memory of 1124 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 27 PID 1696 wrote to memory of 1124 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 27 PID 1696 wrote to memory of 1124 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 27 PID 1696 wrote to memory of 1124 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 27 PID 1696 wrote to memory of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29 PID 1696 wrote to memory of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29 PID 1696 wrote to memory of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29 PID 1696 wrote to memory of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29 PID 1696 wrote to memory of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29 PID 1696 wrote to memory of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29 PID 1696 wrote to memory of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29 PID 1696 wrote to memory of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29 PID 1696 wrote to memory of 336 1696 112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe"C:\Users\Admin\AppData\Local\Temp\112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1696 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1124
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C:\Users\Admin\AppData\Local\Temp\112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exeC:\Users\Admin\AppData\Local\Temp\112843e910e5bef697600933153dfc07852c3b6c5c1d1e2258da31c1c50d1fb5.exe2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:336
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