Analysis
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max time kernel
147s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-03-2024 10:30
Static task
static1
Behavioral task
behavioral1
Sample
bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exe
Resource
win10v2004-20240226-en
General
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Target
bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exe
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Size
1.8MB
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MD5
3ee6c265c7ee4d8851d89fc62ae1f9bc
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SHA1
35cfddb7801f3cc6360f7c7083d4ba578e96bf1f
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SHA256
bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9
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SHA512
62e7f692e570d2420cbb86d0fb93e3872d4ff9e7a0cee735b4c624c14f13ac5515fcdd97c0078a0af72e3589b53772d85722659c4ea721c15e0af48afce85996
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SSDEEP
49152:NoXjR2GaQTqvH4KFxvh6EFbGqmP9C8EFJOVWS5NWFuGXom1:+F2GaAqvH4mxvhV+k8ETUW7wGYm
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:
bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exeexplorgu.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 4 3312 rundll32.exe 5 1532 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:
bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exeexplorgu.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.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 1056 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:
bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exeexplorgu.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3594324687-1993884830-4019639329-1000\Software\Wine bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exe Key opened \REGISTRY\USER\S-1-5-21-3594324687-1993884830-4019639329-1000\Software\Wine explorgu.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 3288 rundll32.exe 3312 rundll32.exe 1532 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:
bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exeexplorgu.exepid process 3852 bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exe 1056 explorgu.exe -
Drops file in Windows directory 1 IoCs
Processes:
bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exedescription ioc process File created C:\Windows\Tasks\explorgu.job bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.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:
bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exeexplorgu.exerundll32.exepowershell.exepid process 3852 bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exe 3852 bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exe 1056 explorgu.exe 1056 explorgu.exe 3312 rundll32.exe 3312 rundll32.exe 3312 rundll32.exe 3312 rundll32.exe 3312 rundll32.exe 3312 rundll32.exe 3312 rundll32.exe 3312 rundll32.exe 3312 rundll32.exe 3312 rundll32.exe 876 powershell.exe 876 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 876 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
explorgu.exerundll32.exerundll32.exedescription pid process target process PID 1056 wrote to memory of 3288 1056 explorgu.exe rundll32.exe PID 1056 wrote to memory of 3288 1056 explorgu.exe rundll32.exe PID 1056 wrote to memory of 3288 1056 explorgu.exe rundll32.exe PID 3288 wrote to memory of 3312 3288 rundll32.exe rundll32.exe PID 3288 wrote to memory of 3312 3288 rundll32.exe rundll32.exe PID 3312 wrote to memory of 4556 3312 rundll32.exe netsh.exe PID 3312 wrote to memory of 4556 3312 rundll32.exe netsh.exe PID 3312 wrote to memory of 876 3312 rundll32.exe powershell.exe PID 3312 wrote to memory of 876 3312 rundll32.exe powershell.exe PID 1056 wrote to memory of 1532 1056 explorgu.exe rundll32.exe PID 1056 wrote to memory of 1532 1056 explorgu.exe rundll32.exe PID 1056 wrote to memory of 1532 1056 explorgu.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.exe"C:\Users\Admin\AppData\Local\Temp\bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9.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:3852
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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:1056 -
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:3288 -
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:3312 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:4556
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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\594324687199_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:876 -
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:1532
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD53ee6c265c7ee4d8851d89fc62ae1f9bc
SHA135cfddb7801f3cc6360f7c7083d4ba578e96bf1f
SHA256bc9e77808288969ffb55b9b4288751746c1af27431a2c9d80b0988a8ba1eecd9
SHA51262e7f692e570d2420cbb86d0fb93e3872d4ff9e7a0cee735b4c624c14f13ac5515fcdd97c0078a0af72e3589b53772d85722659c4ea721c15e0af48afce85996
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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