Analysis
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max time kernel
632s -
max time network
373s -
platform
windows11_x64 -
resource
win11 -
submitted
22-10-2021 14:38
General
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Target
Fri0575b7d291a755f8.exe
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Size
75KB
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MD5
3399436f50fad870cade4f68de68a76d
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SHA1
a690dd92fa2902ec5881b1ed55b1bb7316f48b70
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SHA256
9e9519db3a55dd28cc85ddb8e02990758fa23d0f387e006de073e30277bce862
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SHA512
c558ca8b467e3375d9f5e5db9801ce400cd5d0ce86b53ec4fe0d2452284afb32b642d915e6c89d9ec34bda1f81a75ad19c3aced770732573a0f55bfd0de6de03
Score
8/10
Malware Config
Signatures
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Sets service image path in registry 2 TTPs
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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Drops file in Windows directory 8 IoCs
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Modifies data under HKEY_USERS 64 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Fri0575b7d291a755f8.exe"C:\Users\Admin\AppData\Local\Temp\Fri0575b7d291a755f8.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe 62f25bfb7abbcd7cb5fcfcaf4690af3f 01aP/BNOmUa3FfCqNSBYMA.0.1.0.3.01⤵
- Modifies data under HKEY_USERS
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\uus\AMD64\MoUsoCoreWorker.exeC:\Windows\uus\AMD64\MoUsoCoreWorker.exe2⤵
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe 62f25bfb7abbcd7cb5fcfcaf4690af3f 01aP/BNOmUa3FfCqNSBYMA.0.1.0.3.01⤵
- Modifies data under HKEY_USERS
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe 62f25bfb7abbcd7cb5fcfcaf4690af3f 01aP/BNOmUa3FfCqNSBYMA.0.1.0.3.01⤵
- Modifies data under HKEY_USERS
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2052-152-0x000001F84FB60000-0x000001F84FB70000-memory.dmpFilesize
64KB
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memory/2052-153-0x000001F8502E0000-0x000001F8502F0000-memory.dmpFilesize
64KB
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memory/2052-154-0x000001F8527F0000-0x000001F8527F4000-memory.dmpFilesize
16KB
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memory/2648-155-0x0000000000000000-mapping.dmp
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memory/3124-146-0x0000000000620000-0x0000000000621000-memory.dmpFilesize
4KB
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memory/3124-148-0x00000000029C0000-0x00000000029C1000-memory.dmpFilesize
4KB
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memory/3124-149-0x0000000009860000-0x0000000009861000-memory.dmpFilesize
4KB
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memory/3124-150-0x0000000009B60000-0x0000000009B61000-memory.dmpFilesize
4KB
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memory/3124-151-0x00000000051D0000-0x00000000051D1000-memory.dmpFilesize
4KB