Analysis
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max time kernel
298s -
max time network
298s -
platform
windows10-1703_x64 -
resource
win10-20240221-en -
resource tags
arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system -
submitted
01-04-2024 05:06
Static task
static1
Behavioral task
behavioral1
Sample
bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exe
Resource
win7-20240221-en
General
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Target
bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exe
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Size
1.8MB
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MD5
da3a4922260236756281fd86faee9f41
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SHA1
c3e479cd6cf9bbc27a090ac448e02f3baa4ad359
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SHA256
bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385
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SHA512
bb844606c9280a8c9c8fa6e7934ec1f711f7aa37c5ad381f2e8318433d05f5c6c09cdb3bb7190d223f9cc037502be138fdd8bce1bf293eb6f75454bdd06f5eba
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SSDEEP
49152:68msgNotrCH2v7UooOLf5k5fYE9Kw5ODE7BFQxXwo:9yJWvobOTiYcWE7YXw
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:
explorgu.exebfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 4 2540 rundll32.exe 5 1528 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:
bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exeexplorgu.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.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 bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exe -
Executes dropped EXE 1 IoCs
Processes:
explorgu.exepid process 2904 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:
bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exeexplorgu.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-682446400-748730298-2471801445-1000\Software\Wine bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exe Key opened \REGISTRY\USER\S-1-5-21-682446400-748730298-2471801445-1000\Software\Wine explorgu.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 3312 rundll32.exe 2540 rundll32.exe 1528 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:
bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exeexplorgu.exepid process 868 bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exe 2904 explorgu.exe -
Drops file in Windows directory 1 IoCs
Processes:
bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exedescription ioc process File created C:\Windows\Tasks\explorgu.job bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.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:
bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exeexplorgu.exerundll32.exepowershell.exepid process 868 bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exe 868 bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exe 2904 explorgu.exe 2904 explorgu.exe 2540 rundll32.exe 2540 rundll32.exe 2540 rundll32.exe 2540 rundll32.exe 2540 rundll32.exe 2540 rundll32.exe 2540 rundll32.exe 2540 rundll32.exe 2540 rundll32.exe 2540 rundll32.exe 4076 powershell.exe 4076 powershell.exe 4076 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 4076 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
explorgu.exerundll32.exerundll32.exedescription pid process target process PID 2904 wrote to memory of 3312 2904 explorgu.exe rundll32.exe PID 2904 wrote to memory of 3312 2904 explorgu.exe rundll32.exe PID 2904 wrote to memory of 3312 2904 explorgu.exe rundll32.exe PID 3312 wrote to memory of 2540 3312 rundll32.exe rundll32.exe PID 3312 wrote to memory of 2540 3312 rundll32.exe rundll32.exe PID 2540 wrote to memory of 1836 2540 rundll32.exe netsh.exe PID 2540 wrote to memory of 1836 2540 rundll32.exe netsh.exe PID 2540 wrote to memory of 4076 2540 rundll32.exe powershell.exe PID 2540 wrote to memory of 4076 2540 rundll32.exe powershell.exe PID 2904 wrote to memory of 1528 2904 explorgu.exe rundll32.exe PID 2904 wrote to memory of 1528 2904 explorgu.exe rundll32.exe PID 2904 wrote to memory of 1528 2904 explorgu.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.exe"C:\Users\Admin\AppData\Local\Temp\bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385.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:868
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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:2904 -
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:3312 -
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:2540 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:1836
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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\824464007487_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4076
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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:1528
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.8MB
MD5da3a4922260236756281fd86faee9f41
SHA1c3e479cd6cf9bbc27a090ac448e02f3baa4ad359
SHA256bfa445e1f0447b0634242f1e3118004f3a04fd23a8db560e67de229f709a6385
SHA512bb844606c9280a8c9c8fa6e7934ec1f711f7aa37c5ad381f2e8318433d05f5c6c09cdb3bb7190d223f9cc037502be138fdd8bce1bf293eb6f75454bdd06f5eba
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Filesize
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
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Filesize
109KB
MD52afdbe3b99a4736083066a13e4b5d11a
SHA14d4856cf02b3123ac16e63d4a448cdbcb1633546
SHA2568d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee
SHA512d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f
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Filesize
1.2MB
MD592fbdfccf6a63acef2743631d16652a7
SHA1971968b1378dd89d59d7f84bf92f16fc68664506
SHA256b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72
SHA512b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117