Analysis
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max time kernel
64s -
max time network
151s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
30-08-2022 10:21
Static task
static1
General
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Target
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe
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Size
804KB
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MD5
7a8a85429a9cf780540c2d1212637fd9
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SHA1
121ddcf18e6fa0b576412bf53e25b5aeccbedd56
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SHA256
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560
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SHA512
87f1a3d5f93302d1456715e7bc80f0590a2cc29e4a5b46fb35b362139d0df842723cf52c4c3f55735e222fceb3e377453e0c36494b26b1687681eede492c8a25
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SSDEEP
24576:uCQZ5HekjAWI1jfjk5F5mhfnzLWdenh2D:y5HLbIJoZmhf2yh2
Malware Config
Extracted
nanocore
1.2.2.0
louinc928.gotdns.ch:1492
127.0.0.1:1492
6f711de5-f3f4-4062-bab9-dce39dc4e0f9
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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
2022-05-22T02:15:25.592931736Z
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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
1492
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default_group
AUG
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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
6f711de5-f3f4-4062-bab9-dce39dc4e0f9
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
louinc928.gotdns.ch
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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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\TCP Subsystem = "C:\\Program Files (x86)\\TCP Subsystem\\tcpss.exe" a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe -
Processes:
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exedescription pid process target process PID 2160 set thread context of 3312 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe -
Drops file in Program Files directory 2 IoCs
Processes:
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exedescription ioc process File created C:\Program Files (x86)\TCP Subsystem\tcpss.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe File opened for modification C:\Program Files (x86)\TCP Subsystem\tcpss.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 4984 schtasks.exe 4068 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exepid process 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exepid process 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exedescription pid process Token: SeDebugPrivilege 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exepid process 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exea8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exedescription pid process target process PID 2160 wrote to memory of 3312 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe PID 2160 wrote to memory of 3312 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe PID 2160 wrote to memory of 3312 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe PID 2160 wrote to memory of 3312 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe PID 2160 wrote to memory of 3312 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe PID 2160 wrote to memory of 3312 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe PID 2160 wrote to memory of 3312 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe PID 2160 wrote to memory of 3312 2160 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe PID 3312 wrote to memory of 4984 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe schtasks.exe PID 3312 wrote to memory of 4984 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe schtasks.exe PID 3312 wrote to memory of 4984 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe schtasks.exe PID 3312 wrote to memory of 4068 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe schtasks.exe PID 3312 wrote to memory of 4068 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe schtasks.exe PID 3312 wrote to memory of 4068 3312 a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe"C:\Users\Admin\AppData\Local\Temp\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2160 -
C:\Users\Admin\AppData\Local\Temp\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe"C:\Users\Admin\AppData\Local\Temp\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3312 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7494.tmp"3⤵
- Creates scheduled task(s)
PID:4984
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp75DD.tmp"3⤵
- Creates scheduled task(s)
PID:4068
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe.log
Filesize1KB
MD512557ab909651a6f99d3503d614d3562
SHA1b86745768059a514bea3a438e1e96086af463246
SHA2569589c869703e95d40d5870c60f66d8460f7914e9fe8dd579533c84148112babd
SHA51210cdb2fa7cf054af937b4aeddfe16fe755d6b09db5a51f7052adbf472b4b435e16c141f3712762f3b67f990c3efcfa47659576988e321214c747d6cd98e75521
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Filesize
1KB
MD54290521e9d01266eebd058680c93a62e
SHA148db9bdb7967826aafbfcf74b267a656a30cd99b
SHA2569df91ab404d33bdbf5245e393f36a2fadc174a234209041b787cd29a480588ee
SHA512d9b7142bac21840e570a239e797d9f0b67fac9989806520d435c41485b97d905d4023de7789380f9db748aebcf681060c0eeb171053199a6a82e6e410869e286
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Filesize
1KB
MD54b7ef560289c0f62d0baf6f14f48a57a
SHA18331acb90dde588aa3196919f6e847f398fd06d1
SHA256062844155306130d6fafc4fe10ac9e5ddd2ed462532b729c50cdc979c0d83207
SHA512ecaa27c4b703d95f9f9b37d8c339982970482e7dab968c2010e0aa644bbfa31973111aafb827565af30c423d1d14e4ff997ec149614e713ff7ef3456894d02d8