Analysis
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max time kernel
144s -
max time network
145s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-03-2024 02:55
Static task
static1
Behavioral task
behavioral1
Sample
7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exe
Resource
win10v2004-20240226-en
General
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Target
7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exe
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Size
1.8MB
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MD5
cc1fa2d310b1c0dd7c3495b85ba738ea
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SHA1
2ac70b084316d655b5c74598340c2b9c12745547
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SHA256
7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb
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SHA512
b3eaf94ce5ebbfc6e6300da45eb79f39b15079dde6468710a8ec88de570fcedf408e470efdd8bcd084e35c4419cb95bc66383374a8d5c8210b0fa627afdb149c
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SSDEEP
49152:VOJD7Ryywhgf0HqVskZCEAg5NtjxwxygTkagZmQo7OR:VsAfgPVskZLAoDwxwafQMK
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:
7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exeexplorgu.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.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 1920 rundll32.exe 5 3604 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:
7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exeexplorgu.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.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 4004 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:
7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exeexplorgu.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3594324687-1993884830-4019639329-1000\Software\Wine 7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.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 3864 rundll32.exe 1920 rundll32.exe 3604 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:
7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exeexplorgu.exepid process 4200 7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exe 4004 explorgu.exe -
Drops file in Windows directory 1 IoCs
Processes:
7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exedescription ioc process File created C:\Windows\Tasks\explorgu.job 7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.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:
7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exeexplorgu.exerundll32.exepowershell.exepid process 4200 7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exe 4200 7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exe 4004 explorgu.exe 4004 explorgu.exe 1920 rundll32.exe 1920 rundll32.exe 1920 rundll32.exe 1920 rundll32.exe 1920 rundll32.exe 1920 rundll32.exe 1920 rundll32.exe 1920 rundll32.exe 1920 rundll32.exe 1920 rundll32.exe 2932 powershell.exe 2932 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2932 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
explorgu.exerundll32.exerundll32.exedescription pid process target process PID 4004 wrote to memory of 3864 4004 explorgu.exe rundll32.exe PID 4004 wrote to memory of 3864 4004 explorgu.exe rundll32.exe PID 4004 wrote to memory of 3864 4004 explorgu.exe rundll32.exe PID 3864 wrote to memory of 1920 3864 rundll32.exe rundll32.exe PID 3864 wrote to memory of 1920 3864 rundll32.exe rundll32.exe PID 1920 wrote to memory of 5088 1920 rundll32.exe netsh.exe PID 1920 wrote to memory of 5088 1920 rundll32.exe netsh.exe PID 1920 wrote to memory of 2932 1920 rundll32.exe powershell.exe PID 1920 wrote to memory of 2932 1920 rundll32.exe powershell.exe PID 4004 wrote to memory of 3604 4004 explorgu.exe rundll32.exe PID 4004 wrote to memory of 3604 4004 explorgu.exe rundll32.exe PID 4004 wrote to memory of 3604 4004 explorgu.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.exe"C:\Users\Admin\AppData\Local\Temp\7a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb.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:4200
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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:4004 -
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:3864 -
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:1920 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:5088
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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:2932
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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:3604
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.8MB
MD5cc1fa2d310b1c0dd7c3495b85ba738ea
SHA12ac70b084316d655b5c74598340c2b9c12745547
SHA2567a5377ea5ee29fff44680934fb164749c18f276570f8d895b895f55b3b194dfb
SHA512b3eaf94ce5ebbfc6e6300da45eb79f39b15079dde6468710a8ec88de570fcedf408e470efdd8bcd084e35c4419cb95bc66383374a8d5c8210b0fa627afdb149c
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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