Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
25-04-2024 07:32
Static task
static1
Behavioral task
behavioral1
Sample
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe
Resource
win10v2004-20240412-en
General
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Target
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe
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Size
1.8MB
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MD5
a888a5da90f5ed7c95c0f18b0c952e41
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SHA1
0899f6b32faa0bdf420939c17376ea31fe532f51
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SHA256
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc
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SHA512
9b644a0ed0033d44405c0744917450eb42b166705672d69255ae3acad0e879b822748e08d7513f68cf8c169c8e8e75cfa271aa2698cc8375c6f434762d299a53
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SSDEEP
49152:xs8z00vzP0jMsnbb2UFcoXotI51uVbpoYvuWBL0d:RV7YRnbbrotk1ObpoYv5d+
Malware Config
Extracted
amadey
4.17
http://193.233.132.167
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install_dir
4d0ab15804
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install_file
chrosha.exe
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strings_key
1a9519d7b465e1f4880fa09a6162d768
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url_paths
/enigma/index.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
Processes:
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exechrosha.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 61 376 rundll32.exe 62 3816 rundll32.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exechrosha.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion chrosha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion chrosha.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
chrosha.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation chrosha.exe -
Executes dropped EXE 1 IoCs
Processes:
chrosha.exepid process 2740 chrosha.exe -
Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Software\Wine c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe Key opened \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Software\Wine chrosha.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 2492 rundll32.exe 376 rundll32.exe 3816 rundll32.exe -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exechrosha.exepid process 5104 c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe 2740 chrosha.exe -
Drops file in Windows directory 1 IoCs
Processes:
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exedescription ioc process File created C:\Windows\Tasks\chrosha.job c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 17 IoCs
Processes:
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exechrosha.exerundll32.exepowershell.exepid process 5104 c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe 5104 c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe 2740 chrosha.exe 2740 chrosha.exe 376 rundll32.exe 376 rundll32.exe 376 rundll32.exe 376 rundll32.exe 376 rundll32.exe 376 rundll32.exe 376 rundll32.exe 376 rundll32.exe 376 rundll32.exe 376 rundll32.exe 460 powershell.exe 460 powershell.exe 460 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 460 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exepid process 5104 c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
chrosha.exerundll32.exerundll32.exedescription pid process target process PID 2740 wrote to memory of 2492 2740 chrosha.exe rundll32.exe PID 2740 wrote to memory of 2492 2740 chrosha.exe rundll32.exe PID 2740 wrote to memory of 2492 2740 chrosha.exe rundll32.exe PID 2492 wrote to memory of 376 2492 rundll32.exe rundll32.exe PID 2492 wrote to memory of 376 2492 rundll32.exe rundll32.exe PID 376 wrote to memory of 1472 376 rundll32.exe netsh.exe PID 376 wrote to memory of 1472 376 rundll32.exe netsh.exe PID 376 wrote to memory of 460 376 rundll32.exe powershell.exe PID 376 wrote to memory of 460 376 rundll32.exe powershell.exe PID 2740 wrote to memory of 3816 2740 chrosha.exe rundll32.exe PID 2740 wrote to memory of 3816 2740 chrosha.exe rundll32.exe PID 2740 wrote to memory of 3816 2740 chrosha.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe"C:\Users\Admin\AppData\Local\Temp\c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
PID:5104
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C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exeC:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:376 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:1472
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\132431369515_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:460
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main2⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:3816
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5a888a5da90f5ed7c95c0f18b0c952e41
SHA10899f6b32faa0bdf420939c17376ea31fe532f51
SHA256c4e6a95123560d53b28898d4d0ce58cbce6fed215932f2b9ebce620f68ed9fcc
SHA5129b644a0ed0033d44405c0744917450eb42b166705672d69255ae3acad0e879b822748e08d7513f68cf8c169c8e8e75cfa271aa2698cc8375c6f434762d299a53
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
109KB
MD5154c3f1334dd435f562672f2664fea6b
SHA151dd25e2ba98b8546de163b8f26e2972a90c2c79
SHA2565f431129f97f3d56929f1e5584819e091bd6c854d7e18503074737fc6d79e33f
SHA5121bca69bbcdb7ecd418769e9d4befc458f9f8e3cee81feb7316bb61e189e2904f4431e4cc7d291e179a5dec441b959d428d8e433f579036f763bbad6460222841
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Filesize
1.2MB
MD5f35b671fda2603ec30ace10946f11a90
SHA1059ad6b06559d4db581b1879e709f32f80850872
SHA25683e3df5bec15d5333935bea8b719a6d677e2fb3dc1cf9e18e7b82fd0438285c7
SHA512b5fa27d08c64727cef7fdda5e68054a4359cd697df50d70d1d90da583195959a139066a6214531bbc5f20cd4f9bc1ca3e4244396547381291a6a1d2df9cf8705