Analysis
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max time kernel
147s -
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
28-03-2024 05:25
Static task
static1
Behavioral task
behavioral1
Sample
b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe
Resource
win10v2004-20240226-en
General
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Target
b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe
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Size
1.8MB
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MD5
f20a8515b8d200c756c399b7b6f3aab6
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SHA1
a709b8e7c6d1cb5dc18ec24cb5cbea937c733c01
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SHA256
b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4
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SHA512
bc82d39a9c3a7839e156bd45bed4f91973f9e288700b581c750973925de2f295e21fd3b71b8b1cd0839d456467a4f71e020ecfadc97062eb6e3c14a4e58dc92e
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SSDEEP
24576:Zcu4+MrpB4YRZm5QZ/hBQ1siamnCPD8fq//M6Lf0wfBnCXxUmWZo5vPUpRvQ+Ae1:iu4EKZmulus/7iq//M9p76Vs
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:
b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exeexplorgu.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 3 744 rundll32.exe 4 4324 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:
explorgu.exeb67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorgu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorgu.exe -
Executes dropped EXE 1 IoCs
Processes:
explorgu.exepid process 2368 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:
b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exeexplorgu.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2930051783-2551506282-3430162621-1000\Software\Wine b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe Key opened \REGISTRY\USER\S-1-5-21-2930051783-2551506282-3430162621-1000\Software\Wine explorgu.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 4068 rundll32.exe 744 rundll32.exe 4324 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:
b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exeexplorgu.exepid process 4796 b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe 2368 explorgu.exe -
Drops file in Windows directory 1 IoCs
Processes:
b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exedescription ioc process File created C:\Windows\Tasks\explorgu.job b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.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:
b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exeexplorgu.exerundll32.exepowershell.exepid process 4796 b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe 4796 b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe 2368 explorgu.exe 2368 explorgu.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 744 rundll32.exe 1564 powershell.exe 1564 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1564 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
explorgu.exerundll32.exerundll32.exedescription pid process target process PID 2368 wrote to memory of 4068 2368 explorgu.exe rundll32.exe PID 2368 wrote to memory of 4068 2368 explorgu.exe rundll32.exe PID 2368 wrote to memory of 4068 2368 explorgu.exe rundll32.exe PID 4068 wrote to memory of 744 4068 rundll32.exe rundll32.exe PID 4068 wrote to memory of 744 4068 rundll32.exe rundll32.exe PID 744 wrote to memory of 3160 744 rundll32.exe netsh.exe PID 744 wrote to memory of 3160 744 rundll32.exe netsh.exe PID 744 wrote to memory of 1564 744 rundll32.exe powershell.exe PID 744 wrote to memory of 1564 744 rundll32.exe powershell.exe PID 2368 wrote to memory of 4324 2368 explorgu.exe rundll32.exe PID 2368 wrote to memory of 4324 2368 explorgu.exe rundll32.exe PID 2368 wrote to memory of 4324 2368 explorgu.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.exe"C:\Users\Admin\AppData\Local\Temp\b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4.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
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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
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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
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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
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C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵
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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\930051783255_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exeFilesize
1.8MB
MD5f20a8515b8d200c756c399b7b6f3aab6
SHA1a709b8e7c6d1cb5dc18ec24cb5cbea937c733c01
SHA256b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4
SHA512bc82d39a9c3a7839e156bd45bed4f91973f9e288700b581c750973925de2f295e21fd3b71b8b1cd0839d456467a4f71e020ecfadc97062eb6e3c14a4e58dc92e
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b2tx221q.yo0.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dllFilesize
109KB
MD52afdbe3b99a4736083066a13e4b5d11a
SHA14d4856cf02b3123ac16e63d4a448cdbcb1633546
SHA2568d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee
SHA512d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f
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C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dllFilesize
1.2MB
MD592fbdfccf6a63acef2743631d16652a7
SHA1971968b1378dd89d59d7f84bf92f16fc68664506
SHA256b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72
SHA512b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117
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memory/1564-47-0x00000256C7950000-0x00000256C7972000-memory.dmpFilesize
136KB
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memory/1564-59-0x00007FFDA6DD0000-0x00007FFDA7892000-memory.dmpFilesize
10.8MB
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memory/1564-53-0x00000256C79D0000-0x00000256C79DA000-memory.dmpFilesize
40KB
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memory/1564-52-0x00000256C7E50000-0x00000256C7E62000-memory.dmpFilesize
72KB
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memory/1564-48-0x00007FFDA6DD0000-0x00007FFDA7892000-memory.dmpFilesize
10.8MB
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memory/1564-50-0x00000256C7730000-0x00000256C7740000-memory.dmpFilesize
64KB
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memory/1564-49-0x00000256C7730000-0x00000256C7740000-memory.dmpFilesize
64KB
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memory/2368-23-0x0000000004FE0000-0x0000000004FE1000-memory.dmpFilesize
4KB
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memory/2368-76-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-18-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-20-0x0000000004FF0000-0x0000000004FF1000-memory.dmpFilesize
4KB
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memory/2368-21-0x0000000005030000-0x0000000005031000-memory.dmpFilesize
4KB
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memory/2368-19-0x0000000005000000-0x0000000005001000-memory.dmpFilesize
4KB
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memory/2368-22-0x0000000004FD0000-0x0000000004FD1000-memory.dmpFilesize
4KB
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memory/2368-61-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-24-0x0000000005010000-0x0000000005011000-memory.dmpFilesize
4KB
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memory/2368-25-0x0000000005050000-0x0000000005051000-memory.dmpFilesize
4KB
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memory/2368-26-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-17-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-75-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-74-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-73-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-77-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-78-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-51-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-79-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-80-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-81-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/2368-60-0x0000000000F40000-0x0000000001407000-memory.dmpFilesize
4.8MB
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memory/4796-14-0x00000000007B0000-0x0000000000C77000-memory.dmpFilesize
4.8MB
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memory/4796-1-0x00000000777D6000-0x00000000777D8000-memory.dmpFilesize
8KB
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memory/4796-8-0x0000000005370000-0x0000000005371000-memory.dmpFilesize
4KB
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memory/4796-4-0x00000000053A0000-0x00000000053A1000-memory.dmpFilesize
4KB
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memory/4796-5-0x0000000005380000-0x0000000005381000-memory.dmpFilesize
4KB
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memory/4796-0-0x00000000007B0000-0x0000000000C77000-memory.dmpFilesize
4.8MB
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memory/4796-3-0x0000000005390000-0x0000000005391000-memory.dmpFilesize
4KB
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memory/4796-9-0x00000000053E0000-0x00000000053E1000-memory.dmpFilesize
4KB
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memory/4796-7-0x0000000005360000-0x0000000005361000-memory.dmpFilesize
4KB
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memory/4796-2-0x00000000007B0000-0x0000000000C77000-memory.dmpFilesize
4.8MB
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memory/4796-6-0x00000000053C0000-0x00000000053C1000-memory.dmpFilesize
4KB