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Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
26/07/2024, 02:47
Static task
static1
Behavioral task
behavioral1
Sample
bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
Resource
win10v2004-20240709-en
General
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Target
bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
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Size
338KB
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MD5
7731195245ce0fa2315f570c08705ea5
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SHA1
342f4febc4ba3c227b4347c63c45e6edfa64a426
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SHA256
bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce
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SHA512
4ab03abe0956345ac21aa5e0e4e39833e8d55892c546a632b0a5da7186b560e458ab46fd7f054ea5d13e0c47d2826ca3ed6729f234a8791bd1d62002adb62d0e
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SSDEEP
6144:FExz45SS77IQi8Dq+9fXphN2LfjEcYzaWqr57Q7Xwxc4SQjWvvf:fSS71Dq+pcYWWqtfxvSQj2f
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\apppatch\\svchost.exe," svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2056 svchost.exe -
Modifies WinLogon 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\d73eb590 = "C:\\Windows\\apppatch\\svchost.exe" bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\d73eb590 = "C:\\Windows\\apppatch\\svchost.exe" svchost.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\apppatch\svchost.exe bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe File opened for modification C:\Windows\apppatch\svchost.exe bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2056 svchost.exe 2056 svchost.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 4396 bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4396 wrote to memory of 2056 4396 bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe 84 PID 4396 wrote to memory of 2056 4396 bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe 84 PID 4396 wrote to memory of 2056 4396 bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe"C:\Users\Admin\AppData\Local\Temp\bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe"1⤵
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4396 -
C:\Windows\apppatch\svchost.exe"C:\Windows\apppatch\svchost.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Modifies WinLogon
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2056
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
338KB
MD5cd38434752b253bcd04504bd5bb59eb8
SHA1c1817f3e69c06ef06b4b97757989822070baba69
SHA25691e135b7690d2f7e5096b8ba2cd1bab55e7d9dffd1b967e3bda3a39014e1acac
SHA512189466483af365c1ddf590fd19a84a4d706f874e37b51ff1ed020eea1a86e8c532cd9c7b46d89ed48ecc818c9978362099771bf13d19bc5e2e397ddb07c68dc7