Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
11-04-2023 22:26
Static task
static1
Behavioral task
behavioral1
Sample
b8108213532749bd6108ae3567dd0f15.exe
Resource
win7-20230220-en
General
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Target
b8108213532749bd6108ae3567dd0f15.exe
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Size
1.4MB
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MD5
b8108213532749bd6108ae3567dd0f15
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SHA1
0999006988315880cbb7458b00d9681236f79966
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SHA256
5acff739c079031087e40678c6a469c7e6db7e49447dbab5d679650c52f1f326
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SHA512
f988a128de2df05b911e92f365c94f2871e47ad2d07c0b7ff32a83c4f1403d938897ccf6d6dfece7c16bec28a238e18ef101a24a6680416efe1af6d47789ea01
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SSDEEP
24576:dA7LDMKOYac6idXy2xwO6cJ0qzaEOhm3Au5ZUYbqU2Kj5A:qMKO3cVMIwbcyIaEk9IA
Malware Config
Extracted
nanocore
1.2.2.0
moran101.duckdns.org:8050
moran007.duckdns.org:8050
d5018187-5a97-4cc3-ae3f-299e8dd0ae7e
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activate_away_mode
true
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backup_connection_host
moran007.duckdns.org
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backup_dns_server
moran101.duckdns.org
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buffer_size
65535
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build_time
2019-02-09T12:45:06.335786736Z
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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
8050
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default_group
Apr~30
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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
d5018187-5a97-4cc3-ae3f-299e8dd0ae7e
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
moran101.duckdns.org
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primary_dns_server
moran101.duckdns.org
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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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Drops startup file 1 IoCs
Processes:
b8108213532749bd6108ae3567dd0f15.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vbhtghbvfgh.url b8108213532749bd6108ae3567dd0f15.exe -
Processes:
RegAsm.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
b8108213532749bd6108ae3567dd0f15.exedescription pid process target process PID 1764 set thread context of 1552 1764 b8108213532749bd6108ae3567dd0f15.exe RegAsm.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
RegAsm.exepid process 1552 RegAsm.exe 1552 RegAsm.exe 1552 RegAsm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegAsm.exepid process 1552 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 1552 RegAsm.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
b8108213532749bd6108ae3567dd0f15.exepid process 1764 b8108213532749bd6108ae3567dd0f15.exe 1764 b8108213532749bd6108ae3567dd0f15.exe 1764 b8108213532749bd6108ae3567dd0f15.exe -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
b8108213532749bd6108ae3567dd0f15.exepid process 1764 b8108213532749bd6108ae3567dd0f15.exe 1764 b8108213532749bd6108ae3567dd0f15.exe 1764 b8108213532749bd6108ae3567dd0f15.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
b8108213532749bd6108ae3567dd0f15.exeRegAsm.exedescription pid process target process PID 1764 wrote to memory of 1552 1764 b8108213532749bd6108ae3567dd0f15.exe RegAsm.exe PID 1764 wrote to memory of 1552 1764 b8108213532749bd6108ae3567dd0f15.exe RegAsm.exe PID 1764 wrote to memory of 1552 1764 b8108213532749bd6108ae3567dd0f15.exe RegAsm.exe PID 1764 wrote to memory of 1552 1764 b8108213532749bd6108ae3567dd0f15.exe RegAsm.exe PID 1764 wrote to memory of 1552 1764 b8108213532749bd6108ae3567dd0f15.exe RegAsm.exe PID 1552 wrote to memory of 2264 1552 RegAsm.exe schtasks.exe PID 1552 wrote to memory of 2264 1552 RegAsm.exe schtasks.exe PID 1552 wrote to memory of 2264 1552 RegAsm.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b8108213532749bd6108ae3567dd0f15.exe"C:\Users\Admin\AppData\Local\Temp\b8108213532749bd6108ae3567dd0f15.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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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 behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UPNP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8021.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp8021.tmpFilesize
1KB
MD5c6f0625bf4c1cdfb699980c9243d3b22
SHA143de1fe580576935516327f17b5da0c656c72851
SHA2568dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576
SHA5129ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969
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memory/1552-133-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1552-146-0x0000000002A80000-0x0000000002A90000-memory.dmpFilesize
64KB
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memory/1552-147-0x0000000002A80000-0x0000000002A90000-memory.dmpFilesize
64KB
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memory/1552-148-0x0000000002A80000-0x0000000002A90000-memory.dmpFilesize
64KB
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memory/1552-149-0x0000000002A80000-0x0000000002A90000-memory.dmpFilesize
64KB
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memory/1764-140-0x0000000001400000-0x0000000001401000-memory.dmpFilesize
4KB