Analysis
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max time kernel
1774s -
max time network
1781s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
21-06-2024 16:40
Behavioral task
behavioral1
Sample
EBCSetup.exe
Resource
win10v2004-20240508-en
General
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Target
EBCSetup.exe
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Size
78KB
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MD5
709e1b373849c1e3f5acb80c68f643e3
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SHA1
ae4b1874dcfe79f634da83384497a5a02d67e1c8
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SHA256
5d1bfc47e876af6de671773be3cf73242857025853199bd687df63d5704639f7
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SHA512
f6e9d3a0f9bad7bf9f609bcd984f28a02bcfb733b519fb9bced845ba2d0caf2fdeb9d6e08994ebabb6e4a869be622426eed778f5b3f64beb39fe3a7d2b8d788d
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SSDEEP
1536:i9CvuMOKmSXGfgfLEerrEVQbVUmtqPb2OcT6241MO5jSMg:i9goSXig1uQbVKrE41MOR3g
Malware Config
Extracted
xworm
bulletingmarrano-44370.portmap.io:44370
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Install_directory
%AppData%
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install_file
RuntimeBroker.exe
Signatures
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Detect Xworm Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2164-1-0x00000000005D0000-0x00000000005EA000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe family_xworm -
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 4716 powershell.exe 2692 powershell.exe 3736 powershell.exe 1060 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
EBCSetup.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation EBCSetup.exe -
Drops startup file 2 IoCs
Processes:
EBCSetup.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RuntimeBroker.lnk EBCSetup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RuntimeBroker.lnk EBCSetup.exe -
Executes dropped EXE 30 IoCs
Processes:
RuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exepid process 1008 RuntimeBroker.exe 4852 RuntimeBroker.exe 4428 RuntimeBroker.exe 64 RuntimeBroker.exe 640 RuntimeBroker.exe 4588 RuntimeBroker.exe 1936 RuntimeBroker.exe 2420 RuntimeBroker.exe 4832 RuntimeBroker.exe 1536 RuntimeBroker.exe 3248 RuntimeBroker.exe 3016 RuntimeBroker.exe 2828 RuntimeBroker.exe 3872 RuntimeBroker.exe 1656 RuntimeBroker.exe 1356 RuntimeBroker.exe 1748 RuntimeBroker.exe 4392 RuntimeBroker.exe 4340 RuntimeBroker.exe 3268 RuntimeBroker.exe 3864 RuntimeBroker.exe 1056 RuntimeBroker.exe 412 RuntimeBroker.exe 1888 RuntimeBroker.exe 3960 RuntimeBroker.exe 4436 RuntimeBroker.exe 3760 RuntimeBroker.exe 4748 RuntimeBroker.exe 4268 RuntimeBroker.exe 1916 RuntimeBroker.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
EBCSetup.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "C:\\Users\\Admin\\AppData\\Roaming\\RuntimeBroker.exe" EBCSetup.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 3 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Scheduled Task/Job: Scheduled Task 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 9 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeEBCSetup.exepid process 4716 powershell.exe 4716 powershell.exe 2692 powershell.exe 2692 powershell.exe 3736 powershell.exe 3736 powershell.exe 1060 powershell.exe 1060 powershell.exe 2164 EBCSetup.exe -
Suspicious use of AdjustPrivilegeToken 36 IoCs
Processes:
EBCSetup.exepowershell.exepowershell.exepowershell.exepowershell.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exeRuntimeBroker.exedescription pid process Token: SeDebugPrivilege 2164 EBCSetup.exe Token: SeDebugPrivilege 4716 powershell.exe Token: SeDebugPrivilege 2692 powershell.exe Token: SeDebugPrivilege 3736 powershell.exe Token: SeDebugPrivilege 1060 powershell.exe Token: SeDebugPrivilege 2164 EBCSetup.exe Token: SeDebugPrivilege 1008 RuntimeBroker.exe Token: SeDebugPrivilege 4852 RuntimeBroker.exe Token: SeDebugPrivilege 4428 RuntimeBroker.exe Token: SeDebugPrivilege 64 RuntimeBroker.exe Token: SeDebugPrivilege 640 RuntimeBroker.exe Token: SeDebugPrivilege 4588 RuntimeBroker.exe Token: SeDebugPrivilege 1936 RuntimeBroker.exe Token: SeDebugPrivilege 2420 RuntimeBroker.exe Token: SeDebugPrivilege 4832 RuntimeBroker.exe Token: SeDebugPrivilege 1536 RuntimeBroker.exe Token: SeDebugPrivilege 3248 RuntimeBroker.exe Token: SeDebugPrivilege 3016 RuntimeBroker.exe Token: SeDebugPrivilege 2828 RuntimeBroker.exe Token: SeDebugPrivilege 3872 RuntimeBroker.exe Token: SeDebugPrivilege 1656 RuntimeBroker.exe Token: SeDebugPrivilege 1356 RuntimeBroker.exe Token: SeDebugPrivilege 1748 RuntimeBroker.exe Token: SeDebugPrivilege 4392 RuntimeBroker.exe Token: SeDebugPrivilege 4340 RuntimeBroker.exe Token: SeDebugPrivilege 3268 RuntimeBroker.exe Token: SeDebugPrivilege 3864 RuntimeBroker.exe Token: SeDebugPrivilege 1056 RuntimeBroker.exe Token: SeDebugPrivilege 412 RuntimeBroker.exe Token: SeDebugPrivilege 1888 RuntimeBroker.exe Token: SeDebugPrivilege 3960 RuntimeBroker.exe Token: SeDebugPrivilege 4436 RuntimeBroker.exe Token: SeDebugPrivilege 3760 RuntimeBroker.exe Token: SeDebugPrivilege 4748 RuntimeBroker.exe Token: SeDebugPrivilege 4268 RuntimeBroker.exe Token: SeDebugPrivilege 1916 RuntimeBroker.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
EBCSetup.exepid process 2164 EBCSetup.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
EBCSetup.exedescription pid process target process PID 2164 wrote to memory of 4716 2164 EBCSetup.exe powershell.exe PID 2164 wrote to memory of 4716 2164 EBCSetup.exe powershell.exe PID 2164 wrote to memory of 2692 2164 EBCSetup.exe powershell.exe PID 2164 wrote to memory of 2692 2164 EBCSetup.exe powershell.exe PID 2164 wrote to memory of 3736 2164 EBCSetup.exe powershell.exe PID 2164 wrote to memory of 3736 2164 EBCSetup.exe powershell.exe PID 2164 wrote to memory of 1060 2164 EBCSetup.exe powershell.exe PID 2164 wrote to memory of 1060 2164 EBCSetup.exe powershell.exe PID 2164 wrote to memory of 4940 2164 EBCSetup.exe schtasks.exe PID 2164 wrote to memory of 4940 2164 EBCSetup.exe schtasks.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\EBCSetup.exe"C:\Users\Admin\AppData\Local\Temp\EBCSetup.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2164 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\EBCSetup.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4716
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'EBCSetup.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2692
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3736
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'RuntimeBroker.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1060
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "RuntimeBroker" /tr "C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"2⤵
- Scheduled Task/Job: Scheduled Task
PID:4940
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1008
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4852
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4428
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:64
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:640
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4588
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1936
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2420
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4832
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1536
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3248
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3016
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2828
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3872
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1656
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1356
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1748
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4392
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4340
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3268
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3864
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1056
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:412
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1888
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3960
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4436
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3760
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4748
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4268
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1916
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
944B
MD577d622bb1a5b250869a3238b9bc1402b
SHA1d47f4003c2554b9dfc4c16f22460b331886b191b
SHA256f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
SHA512d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
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Filesize
944B
MD5a7cc007980e419d553568a106210549a
SHA1c03099706b75071f36c3962fcc60a22f197711e0
SHA256a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165
SHA512b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666
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Filesize
944B
MD5920bdb81f5a5c6fc3e7aa6a7d8dd0c53
SHA1e77ffcaac9480af6b431c3596437f20b2d930cdc
SHA25670d8623bb7e7d585b6e2a49d9d4c45531f39a082ff757072cbbbe3ddbc0b17a4
SHA5123d9f1bc73944003ac33daf0048ea34f10d0f36cd57075dc3e9df4ef96def25c7c86551cefcc291ba4a5d9e9a75b59a8d20e016f93d4cbee3f03ffd9d7c2fac4f
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
78KB
MD5709e1b373849c1e3f5acb80c68f643e3
SHA1ae4b1874dcfe79f634da83384497a5a02d67e1c8
SHA2565d1bfc47e876af6de671773be3cf73242857025853199bd687df63d5704639f7
SHA512f6e9d3a0f9bad7bf9f609bcd984f28a02bcfb733b519fb9bced845ba2d0caf2fdeb9d6e08994ebabb6e4a869be622426eed778f5b3f64beb39fe3a7d2b8d788d