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
20-04-2024 07:32
Static task
static1
Behavioral task
behavioral1
Sample
67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe
Resource
win10v2004-20240412-en
General
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Target
67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe
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Size
1.8MB
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MD5
4c47dd65f71d2ebaa37eca973408c04f
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SHA1
4ce54d1779d091ec7d92ae05cab74f98ebbd2f23
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SHA256
67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5
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SHA512
8c43889aa23c60d33f84f36d74623e589cdc71699e694b3e06748c68d5df668ca28fe9a2b526cffd8e1de3d5d749aef886e4db504e25c85c79a69f6cc780cedb
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SSDEEP
49152:JSv5FCYF0k7uvRgqPc1n+oyQ2wKyQDwyIWxK7:ov5UnVPc1+o2wK3VxK
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:
67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exechrosha.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ chrosha.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 139 5100 rundll32.exe 155 5072 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:
chrosha.exe67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion chrosha.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation chrosha.exe -
Executes dropped EXE 1 IoCs
Processes:
chrosha.exepid process 456 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:
67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exechrosha.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Software\Wine 67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe Key opened \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Software\Wine chrosha.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 4552 rundll32.exe 5100 rundll32.exe 5072 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:
67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exechrosha.exepid process 4840 67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe 456 chrosha.exe -
Drops file in Windows directory 1 IoCs
Processes:
67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exedescription ioc process File created C:\Windows\Tasks\chrosha.job 67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.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:
67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exechrosha.exerundll32.exepowershell.exepid process 4840 67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe 4840 67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe 456 chrosha.exe 456 chrosha.exe 5100 rundll32.exe 5100 rundll32.exe 5100 rundll32.exe 5100 rundll32.exe 5100 rundll32.exe 5100 rundll32.exe 5100 rundll32.exe 5100 rundll32.exe 5100 rundll32.exe 5100 rundll32.exe 3616 powershell.exe 3616 powershell.exe 3616 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3616 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
chrosha.exerundll32.exerundll32.exedescription pid process target process PID 456 wrote to memory of 4552 456 chrosha.exe rundll32.exe PID 456 wrote to memory of 4552 456 chrosha.exe rundll32.exe PID 456 wrote to memory of 4552 456 chrosha.exe rundll32.exe PID 4552 wrote to memory of 5100 4552 rundll32.exe rundll32.exe PID 4552 wrote to memory of 5100 4552 rundll32.exe rundll32.exe PID 5100 wrote to memory of 2376 5100 rundll32.exe netsh.exe PID 5100 wrote to memory of 2376 5100 rundll32.exe netsh.exe PID 5100 wrote to memory of 3616 5100 rundll32.exe powershell.exe PID 5100 wrote to memory of 3616 5100 rundll32.exe powershell.exe PID 456 wrote to memory of 5072 456 chrosha.exe rundll32.exe PID 456 wrote to memory of 5072 456 chrosha.exe rundll32.exe PID 456 wrote to memory of 5072 456 chrosha.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.exe"C:\Users\Admin\AppData\Local\Temp\67b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5.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
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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
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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
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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
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C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵
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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\084619521222_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exeFilesize
1.8MB
MD54c47dd65f71d2ebaa37eca973408c04f
SHA14ce54d1779d091ec7d92ae05cab74f98ebbd2f23
SHA25667b0abfe279ed57435e0c06c4ef32edc5093e75ed7c22e8e904bd3cca63207a5
SHA5128c43889aa23c60d33f84f36d74623e589cdc71699e694b3e06748c68d5df668ca28fe9a2b526cffd8e1de3d5d749aef886e4db504e25c85c79a69f6cc780cedb
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vpl5vhqt.455.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dllFilesize
109KB
MD5154c3f1334dd435f562672f2664fea6b
SHA151dd25e2ba98b8546de163b8f26e2972a90c2c79
SHA2565f431129f97f3d56929f1e5584819e091bd6c854d7e18503074737fc6d79e33f
SHA5121bca69bbcdb7ecd418769e9d4befc458f9f8e3cee81feb7316bb61e189e2904f4431e4cc7d291e179a5dec441b959d428d8e433f579036f763bbad6460222841
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C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dllFilesize
1.2MB
MD5f35b671fda2603ec30ace10946f11a90
SHA1059ad6b06559d4db581b1879e709f32f80850872
SHA25683e3df5bec15d5333935bea8b719a6d677e2fb3dc1cf9e18e7b82fd0438285c7
SHA512b5fa27d08c64727cef7fdda5e68054a4359cd697df50d70d1d90da583195959a139066a6214531bbc5f20cd4f9bc1ca3e4244396547381291a6a1d2df9cf8705
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memory/456-31-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-20-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-78-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-77-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-80-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-65-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-81-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-82-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-30-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-83-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-19-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-79-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/456-21-0x0000000004FC0000-0x0000000004FC1000-memory.dmpFilesize
4KB
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memory/456-26-0x0000000004FA0000-0x0000000004FA1000-memory.dmpFilesize
4KB
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memory/456-25-0x0000000004FB0000-0x0000000004FB1000-memory.dmpFilesize
4KB
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memory/456-24-0x0000000004F90000-0x0000000004F91000-memory.dmpFilesize
4KB
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memory/456-23-0x0000000004FF0000-0x0000000004FF1000-memory.dmpFilesize
4KB
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memory/456-22-0x0000000004FD0000-0x0000000004FD1000-memory.dmpFilesize
4KB
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memory/456-27-0x0000000005020000-0x0000000005021000-memory.dmpFilesize
4KB
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memory/456-28-0x0000000005010000-0x0000000005011000-memory.dmpFilesize
4KB
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memory/456-29-0x0000000000EB0000-0x0000000001371000-memory.dmpFilesize
4.8MB
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memory/3616-57-0x0000021A613B0000-0x0000021A613C2000-memory.dmpFilesize
72KB
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memory/3616-58-0x0000021A61390000-0x0000021A6139A000-memory.dmpFilesize
40KB
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memory/3616-64-0x00007FF8153B0000-0x00007FF815E71000-memory.dmpFilesize
10.8MB
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memory/3616-44-0x0000021A48D50000-0x0000021A48D72000-memory.dmpFilesize
136KB
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memory/3616-56-0x0000021A60F40000-0x0000021A60F50000-memory.dmpFilesize
64KB
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memory/3616-54-0x00007FF8153B0000-0x00007FF815E71000-memory.dmpFilesize
10.8MB
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memory/3616-55-0x0000021A60F40000-0x0000021A60F50000-memory.dmpFilesize
64KB
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memory/4840-11-0x0000000004CD0000-0x0000000004CD1000-memory.dmpFilesize
4KB
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memory/4840-0-0x0000000000EA0000-0x0000000001361000-memory.dmpFilesize
4.8MB
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memory/4840-16-0x0000000000EA0000-0x0000000001361000-memory.dmpFilesize
4.8MB
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memory/4840-10-0x0000000004CE0000-0x0000000004CE1000-memory.dmpFilesize
4KB
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memory/4840-9-0x0000000004CB0000-0x0000000004CB1000-memory.dmpFilesize
4KB
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memory/4840-7-0x0000000004C50000-0x0000000004C51000-memory.dmpFilesize
4KB
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memory/4840-8-0x0000000004C60000-0x0000000004C61000-memory.dmpFilesize
4KB
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memory/4840-6-0x0000000004CC0000-0x0000000004CC1000-memory.dmpFilesize
4KB
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memory/4840-4-0x0000000004C90000-0x0000000004C91000-memory.dmpFilesize
4KB
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memory/4840-5-0x0000000004C70000-0x0000000004C71000-memory.dmpFilesize
4KB
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memory/4840-3-0x0000000004C80000-0x0000000004C81000-memory.dmpFilesize
4KB
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memory/4840-2-0x0000000000EA0000-0x0000000001361000-memory.dmpFilesize
4.8MB
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memory/4840-1-0x0000000077034000-0x0000000077036000-memory.dmpFilesize
8KB