Analysis
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max time kernel
145s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 02:57
Static task
static1
Behavioral task
behavioral1
Sample
WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe
Resource
win7-20220414-en
General
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Target
WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe
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Size
616KB
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MD5
8b8454c72a1cdcb7b049df156be131ac
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SHA1
90bef0e62e6699b7f1549d41f41ceb8f702e9477
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SHA256
42e7b0bc64037556ec415d6f869b09205a85d746550ad196c07d4be7ae739155
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SHA512
aa7368141973c28c501f33321915bc1fc90e735828f2c99bf3cb62dbb2eaaeb506d43bd2b517b4f05dfd4b0ba8273d237e2f54aba5ce6f03cdd5e8faeca661e5
Malware Config
Extracted
nanocore
1.2.2.0
194.5.98.8:4573
127.0.0.1:4573
79c69afc-b40c-40c4-acaa-6b92927e2492
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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
2020-02-13T17:36:07.555094636Z
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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
4573
-
default_group
offor
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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
-
max_packet_size
1.048576e+07
-
mutex
79c69afc-b40c-40c4-acaa-6b92927e2492
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
194.5.98.8
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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
-
Processes:
WENZHOU READSUN OPTICAL LTD_PDF ORDER.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
WENZHOU READSUN OPTICAL LTD_PDF ORDER.exedescription pid process target process PID 388 set thread context of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
WENZHOU READSUN OPTICAL LTD_PDF ORDER.exepowershell.exeRegSvcs.exepid process 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe 1708 powershell.exe 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe 1968 RegSvcs.exe 1968 RegSvcs.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegSvcs.exepid process 1968 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WENZHOU READSUN OPTICAL LTD_PDF ORDER.exepowershell.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe Token: SeDebugPrivilege 1708 powershell.exe Token: SeDebugPrivilege 1968 RegSvcs.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
WENZHOU READSUN OPTICAL LTD_PDF ORDER.exedescription pid process target process PID 388 wrote to memory of 1708 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe powershell.exe PID 388 wrote to memory of 1708 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe powershell.exe PID 388 wrote to memory of 1708 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe powershell.exe PID 388 wrote to memory of 1708 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe powershell.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe PID 388 wrote to memory of 1968 388 WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe"C:\Users\Admin\AppData\Local\Temp\WENZHOU READSUN OPTICAL LTD_PDF ORDER.exe"1⤵
- Windows security modification
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/388-54-0x0000000076C81000-0x0000000076C83000-memory.dmpFilesize
8KB
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memory/388-55-0x0000000074F70000-0x000000007551B000-memory.dmpFilesize
5.7MB
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memory/1708-56-0x0000000000000000-mapping.dmp
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memory/1708-58-0x0000000074F70000-0x000000007551B000-memory.dmpFilesize
5.7MB
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memory/1968-59-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1968-60-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1968-62-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1968-63-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1968-65-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1968-66-0x000000000041E792-mapping.dmp
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memory/1968-68-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1968-70-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1968-72-0x0000000074F70000-0x000000007551B000-memory.dmpFilesize
5.7MB