Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
04/04/2024, 22:00
Static task
static1
Behavioral task
behavioral1
Sample
e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe
Resource
win10v2004-20240226-en
General
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Target
e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe
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Size
1.8MB
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MD5
a2eae03ce6f8fad172961a583cef7695
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SHA1
632e6697681a3d69c94ab6bb19e05dfd0fcc7045
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SHA256
e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced
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SHA512
fdd9db23513a716ed87405456d39b83a5462cec80d618718991cc86f0ed8d52ee1fe6ee78937a47bcfaecf8d12f6f3b391279c5e2ae9ab97b3fbb54453ded7ac
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SSDEEP
49152:vwS03ipJEbh7IDk5TP+YtQNE+wK2qO8CkoJS:v4MWsITHtVKhqJ
Malware Config
Extracted
amadey
4.17
http://185.215.113.32
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install_dir
00c07260dc
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install_file
explorgu.exe
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strings_key
461809bd97c251ba0c0c8450c7055f1d
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url_paths
/yandex/index.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.exe -
Blocklisted process makes network request 2 IoCs
flow pid Process 3 1444 rundll32.exe 4 3040 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.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorgu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorgu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe -
Executes dropped EXE 1 IoCs
pid Process 4204 explorgu.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.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Software\Wine e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe Key opened \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Software\Wine explorgu.exe -
Loads dropped DLL 3 IoCs
pid Process 3448 rundll32.exe 1444 rundll32.exe 3040 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
pid Process 4948 e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe 4204 explorgu.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\explorgu.job e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.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
pid Process 4948 e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe 4948 e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe 4204 explorgu.exe 4204 explorgu.exe 1444 rundll32.exe 1444 rundll32.exe 1444 rundll32.exe 1444 rundll32.exe 1444 rundll32.exe 1444 rundll32.exe 1444 rundll32.exe 1444 rundll32.exe 1444 rundll32.exe 1444 rundll32.exe 3908 powershell.exe 3908 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3908 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4948 e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4204 wrote to memory of 3448 4204 explorgu.exe 78 PID 4204 wrote to memory of 3448 4204 explorgu.exe 78 PID 4204 wrote to memory of 3448 4204 explorgu.exe 78 PID 3448 wrote to memory of 1444 3448 rundll32.exe 79 PID 3448 wrote to memory of 1444 3448 rundll32.exe 79 PID 1444 wrote to memory of 4860 1444 rundll32.exe 80 PID 1444 wrote to memory of 4860 1444 rundll32.exe 80 PID 1444 wrote to memory of 3908 1444 rundll32.exe 82 PID 1444 wrote to memory of 3908 1444 rundll32.exe 82 PID 4204 wrote to memory of 3040 4204 explorgu.exe 84 PID 4204 wrote to memory of 3040 4204 explorgu.exe 84 PID 4204 wrote to memory of 3040 4204 explorgu.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe"C:\Users\Admin\AppData\Local\Temp\e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.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:4948
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C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exeC:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.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:4204 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3448 -
C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1444 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:4860
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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\181651180316_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3908
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main2⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:3040
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5a2eae03ce6f8fad172961a583cef7695
SHA1632e6697681a3d69c94ab6bb19e05dfd0fcc7045
SHA256e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced
SHA512fdd9db23513a716ed87405456d39b83a5462cec80d618718991cc86f0ed8d52ee1fe6ee78937a47bcfaecf8d12f6f3b391279c5e2ae9ab97b3fbb54453ded7ac
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
109KB
MD52afdbe3b99a4736083066a13e4b5d11a
SHA14d4856cf02b3123ac16e63d4a448cdbcb1633546
SHA2568d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee
SHA512d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f
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Filesize
1.2MB
MD592fbdfccf6a63acef2743631d16652a7
SHA1971968b1378dd89d59d7f84bf92f16fc68664506
SHA256b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72
SHA512b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117