Analysis
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max time kernel
146s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240319-en -
resource tags
arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system -
submitted
25/03/2024, 01:50
Static task
static1
Behavioral task
behavioral1
Sample
c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe
Resource
win10v2004-20240226-en
General
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Target
c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe
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Size
1.8MB
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MD5
2bb882f05824de9a479e3b8351cdf58d
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SHA1
153c24fd281341558e3c307a3c13fcf78a30071b
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SHA256
c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee
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SHA512
3742e1d6919e2f4c68f34bcebb43d189e7f28323a5a8fd4d081f12957fc319842c2592d191f99f4f28997ad566c67d7d4b75e42e657ce4ab4bca6ad89bc9001c
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SSDEEP
49152:dMpkyAxbCDuZJfaJqYvdL3bRHhfJi2K1GFlE:+tAxbCqZCqYVL3b1RJv0GE
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 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.exe -
Blocklisted process makes network request 2 IoCs
flow pid Process 11 5724 rundll32.exe 12 3664 rundll32.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 6 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorgu.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 c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorgu.exe -
Executes dropped EXE 2 IoCs
pid Process 580 explorgu.exe 968 explorgu.exe -
Identifies Wine through registry keys 2 TTPs 3 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Wine c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe Key opened \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Wine explorgu.exe Key opened \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Wine explorgu.exe -
Loads dropped DLL 3 IoCs
pid Process 5728 rundll32.exe 5724 rundll32.exe 3664 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
pid Process 236 c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe 580 explorgu.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 580 set thread context of 968 580 explorgu.exe 91 -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\explorgu.job c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.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
pid Process 236 c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe 236 c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe 580 explorgu.exe 580 explorgu.exe 5724 rundll32.exe 5724 rundll32.exe 5724 rundll32.exe 5724 rundll32.exe 5724 rundll32.exe 5724 rundll32.exe 5724 rundll32.exe 5724 rundll32.exe 5724 rundll32.exe 5724 rundll32.exe 5376 powershell.exe 5376 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5376 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 236 c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 580 wrote to memory of 5728 580 explorgu.exe 82 PID 580 wrote to memory of 5728 580 explorgu.exe 82 PID 580 wrote to memory of 5728 580 explorgu.exe 82 PID 5728 wrote to memory of 5724 5728 rundll32.exe 83 PID 5728 wrote to memory of 5724 5728 rundll32.exe 83 PID 5724 wrote to memory of 1952 5724 rundll32.exe 84 PID 5724 wrote to memory of 1952 5724 rundll32.exe 84 PID 5724 wrote to memory of 5376 5724 rundll32.exe 86 PID 5724 wrote to memory of 5376 5724 rundll32.exe 86 PID 580 wrote to memory of 3664 580 explorgu.exe 88 PID 580 wrote to memory of 3664 580 explorgu.exe 88 PID 580 wrote to memory of 3664 580 explorgu.exe 88 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91 PID 580 wrote to memory of 968 580 explorgu.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.exe"C:\Users\Admin\AppData\Local\Temp\c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee.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:236
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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 use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:580 -
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:5728 -
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:5724 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:1952
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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\233663403127_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5376
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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:3664
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C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe"C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
PID:968
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD52bb882f05824de9a479e3b8351cdf58d
SHA1153c24fd281341558e3c307a3c13fcf78a30071b
SHA256c328805ce084493a7d4d761e65dc1820a5626c2da1622be93a7f095c67a7cbee
SHA5123742e1d6919e2f4c68f34bcebb43d189e7f28323a5a8fd4d081f12957fc319842c2592d191f99f4f28997ad566c67d7d4b75e42e657ce4ab4bca6ad89bc9001c
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Filesize
1024KB
MD58f216f946becf1a5083d738f5af6c913
SHA10f6f77e898482476b850d613dbe8c2b98626315e
SHA256f9d83a881ae8541c5be30b13b24dbfeb688df14a83680d5a4df2f1f242a2dc7a
SHA512982a77b5ad1bcf02e88523dc080e9bf12960b0af4aff383b7e3717abe98601da01adafa32ede1729b99bc35721461915f34289c520b631b469da9a9195859914
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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