Analysis
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max time kernel
144s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-03-2024 10:25
Static task
static1
Behavioral task
behavioral1
Sample
99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe
Resource
win10v2004-20240226-en
General
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Target
99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe
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Size
1.8MB
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MD5
cf9db0407cd91ac0ddafa0858fd26eb8
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SHA1
f1bcc2513d403b28e008698dad7abf78b2fc4a9b
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SHA256
99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90
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SHA512
3aa696d2ff94a3ca02816b62215f63bb5cd45f61cd5e9db11b54d3ca0fdc932890dd54341d117798d8f7ee3bfc2d7832d29396f1ea195f796c354faadba86654
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SSDEEP
49152:0UuRV3y/PApTx2B1eAdxXKB1TsKSjhyb:0UqVi/PApVqp6BUjhyb
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
Processes:
99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exeexplorgu.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 14 3608 rundll32.exe 15 1548 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:
99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exeexplorgu.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorgu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorgu.exe -
Executes dropped EXE 1 IoCs
Processes:
explorgu.exepid process 4076 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.
Processes:
explorgu.exe99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-627134735-902745853-4257352768-1000\Software\Wine explorgu.exe Key opened \REGISTRY\USER\S-1-5-21-627134735-902745853-4257352768-1000\Software\Wine 99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 732 rundll32.exe 3608 rundll32.exe 1548 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:
99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exeexplorgu.exepid process 3092 99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe 4076 explorgu.exe -
Drops file in Windows directory 1 IoCs
Processes:
99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exedescription ioc process File created C:\Windows\Tasks\explorgu.job 99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.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:
99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exeexplorgu.exerundll32.exepowershell.exepid process 3092 99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe 3092 99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe 4076 explorgu.exe 4076 explorgu.exe 3608 rundll32.exe 3608 rundll32.exe 3608 rundll32.exe 3608 rundll32.exe 3608 rundll32.exe 3608 rundll32.exe 3608 rundll32.exe 3608 rundll32.exe 3608 rundll32.exe 3608 rundll32.exe 4708 powershell.exe 4708 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 4708 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exepid process 3092 99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
explorgu.exerundll32.exerundll32.exedescription pid process target process PID 4076 wrote to memory of 732 4076 explorgu.exe rundll32.exe PID 4076 wrote to memory of 732 4076 explorgu.exe rundll32.exe PID 4076 wrote to memory of 732 4076 explorgu.exe rundll32.exe PID 732 wrote to memory of 3608 732 rundll32.exe rundll32.exe PID 732 wrote to memory of 3608 732 rundll32.exe rundll32.exe PID 3608 wrote to memory of 4912 3608 rundll32.exe netsh.exe PID 3608 wrote to memory of 4912 3608 rundll32.exe netsh.exe PID 3608 wrote to memory of 4708 3608 rundll32.exe powershell.exe PID 3608 wrote to memory of 4708 3608 rundll32.exe powershell.exe PID 4076 wrote to memory of 1548 4076 explorgu.exe rundll32.exe PID 4076 wrote to memory of 1548 4076 explorgu.exe rundll32.exe PID 4076 wrote to memory of 1548 4076 explorgu.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.exe"C:\Users\Admin\AppData\Local\Temp\99e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90.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:3092
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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:4076 -
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:732 -
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:3608 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:4912
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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\271347359027_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4708
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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:1548
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5cf9db0407cd91ac0ddafa0858fd26eb8
SHA1f1bcc2513d403b28e008698dad7abf78b2fc4a9b
SHA25699e84937d8934aed0bd610814d5bc76622abd74230f1d2cec2aa3d33580e1a90
SHA5123aa696d2ff94a3ca02816b62215f63bb5cd45f61cd5e9db11b54d3ca0fdc932890dd54341d117798d8f7ee3bfc2d7832d29396f1ea195f796c354faadba86654
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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