Analysis
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max time kernel
148s -
max time network
128s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-04-2024 23:52
Static task
static1
Behavioral task
behavioral1
Sample
d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe
Resource
win10v2004-20240412-en
General
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Target
d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe
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Size
1.8MB
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MD5
bc67aaabb51e264ce388de254403bfbe
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SHA1
0529ffca691699ba1363a989896d3dce71e63f21
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SHA256
d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f
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SHA512
acebc2d255cb2be5878e3092c88ccb50a36006fffd39890418e63cb1d1e328a31a8512efd13ccad84d9ce2e1f86e6486941fd481f4271d4090d99bc1a954fc68
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SSDEEP
24576:rNTTpE2FL7zyuUhuZ5080WFDdSPWY80dONllt8mGBbQ6WB6xQ+KBWU6UgQIqXxmL:vLuuT500lM780duL8BQDBY66UX07l1
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:
d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exechrosha.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 3 2128 rundll32.exe 4 3868 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:
d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exechrosha.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion chrosha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion chrosha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe -
Executes dropped EXE 1 IoCs
Processes:
chrosha.exepid process 4948 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:
d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\Software\Wine d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe Key opened \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\Software\Wine chrosha.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 1636 rundll32.exe 2128 rundll32.exe 3868 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:
d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exechrosha.exepid process 1404 d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe 4948 chrosha.exe -
Drops file in Windows directory 1 IoCs
Processes:
d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exedescription ioc process File created C:\Windows\Tasks\chrosha.job d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exechrosha.exerundll32.exepowershell.exepid process 1404 d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe 1404 d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe 4948 chrosha.exe 4948 chrosha.exe 2128 rundll32.exe 2128 rundll32.exe 2128 rundll32.exe 2128 rundll32.exe 2128 rundll32.exe 2128 rundll32.exe 2128 rundll32.exe 2128 rundll32.exe 2128 rundll32.exe 2128 rundll32.exe 1424 powershell.exe 1424 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1424 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
chrosha.exerundll32.exerundll32.exedescription pid process target process PID 4948 wrote to memory of 1636 4948 chrosha.exe rundll32.exe PID 4948 wrote to memory of 1636 4948 chrosha.exe rundll32.exe PID 4948 wrote to memory of 1636 4948 chrosha.exe rundll32.exe PID 1636 wrote to memory of 2128 1636 rundll32.exe rundll32.exe PID 1636 wrote to memory of 2128 1636 rundll32.exe rundll32.exe PID 2128 wrote to memory of 792 2128 rundll32.exe netsh.exe PID 2128 wrote to memory of 792 2128 rundll32.exe netsh.exe PID 2128 wrote to memory of 1424 2128 rundll32.exe powershell.exe PID 2128 wrote to memory of 1424 2128 rundll32.exe powershell.exe PID 4948 wrote to memory of 3868 4948 chrosha.exe rundll32.exe PID 4948 wrote to memory of 3868 4948 chrosha.exe rundll32.exe PID 4948 wrote to memory of 3868 4948 chrosha.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.exe"C:\Users\Admin\AppData\Local\Temp\d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f.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
PID:1404
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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
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4948 -
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:1636 -
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:2128 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:792
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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\718508534211_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1424
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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:3868
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5bc67aaabb51e264ce388de254403bfbe
SHA10529ffca691699ba1363a989896d3dce71e63f21
SHA256d1f7e1bc688bf332de26725e1b6c41ace6cec499ac309c4ab0ba6a1626208d3f
SHA512acebc2d255cb2be5878e3092c88ccb50a36006fffd39890418e63cb1d1e328a31a8512efd13ccad84d9ce2e1f86e6486941fd481f4271d4090d99bc1a954fc68
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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