Analysis
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max time kernel
129s -
max time network
131s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
10-05-2024 04:43
Static task
static1
Behavioral task
behavioral1
Sample
4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe
Resource
win10v2004-20240508-en
General
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Target
4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe
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Size
372KB
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MD5
df39af1242f1cb09e807813982a10a67
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SHA1
e46255419108a21514d92ce5aa9fdc89ae56e35c
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SHA256
4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778
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SHA512
8666c98eac46b71063304b3938f2a70657647c3886c0d990fa1c59464cf44236e46acb3e6e4f67d57d8c994837b2fe05b7baf197b7707f7d16a482310d5ecfa5
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SSDEEP
6144:rte+TLYkD9ZWZImNMlYNOYa4JB4B4tTOgAKx9IvdYlhUHmnfKrbZJS:5L9ZWypUsaK4tTO+x9IFYjUGnkbZJS
Malware Config
Extracted
stealc
http://185.172.128.150
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url_path
/c698e1bc8a2f5e6d.php
Signatures
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Detect ZGRat V1 3 IoCs
resource yara_rule behavioral2/memory/1880-108-0x000001B679DF0000-0x000001B67D624000-memory.dmp family_zgrat_v1 behavioral2/memory/1880-109-0x000001B61A460000-0x000001B61A56A000-memory.dmp family_zgrat_v1 behavioral2/memory/1880-113-0x000001B61A2B0000-0x000001B61A2D4000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 2240 u15k.0.exe 3804 u15k.1.exe -
Loads dropped DLL 2 IoCs
pid Process 2240 u15k.0.exe 2240 u15k.0.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 332 1496 WerFault.exe 78 3148 2240 WerFault.exe 81 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u15k.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u15k.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u15k.1.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 u15k.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u15k.0.exe -
Suspicious behavior: EnumeratesProcesses 21 IoCs
pid Process 2240 u15k.0.exe 2240 u15k.0.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1880 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe 3804 u15k.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1496 wrote to memory of 2240 1496 4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe 81 PID 1496 wrote to memory of 2240 1496 4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe 81 PID 1496 wrote to memory of 2240 1496 4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe 81 PID 1496 wrote to memory of 3804 1496 4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe 84 PID 1496 wrote to memory of 3804 1496 4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe 84 PID 1496 wrote to memory of 3804 1496 4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe 84 PID 3804 wrote to memory of 1880 3804 u15k.1.exe 89 PID 3804 wrote to memory of 1880 3804 u15k.1.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe"C:\Users\Admin\AppData\Local\Temp\4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1496 -
C:\Users\Admin\AppData\Local\Temp\u15k.0.exe"C:\Users\Admin\AppData\Local\Temp\u15k.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2240 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2240 -s 24403⤵
- Program crash
PID:3148
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C:\Users\Admin\AppData\Local\Temp\u15k.1.exe"C:\Users\Admin\AppData\Local\Temp\u15k.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3804 -
C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe"C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD13⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1880
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 14082⤵
- Program crash
PID:332
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1496 -ip 14961⤵PID:4844
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2240 -ip 22401⤵PID:1012
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD5a33e5b189842c5867f46566bdbf7a095
SHA1e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA2565abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
2KB
MD5c3bdfa32f4a636e740fbebc36f8e98ed
SHA1077019c8d4bced17a02e53ad460e7a068cc1ced3
SHA25609bbd31266e7eda77bff5053c42e9207ce79eb84299135e389ad7305c4c91135
SHA51277da45fc0a8e002263261c2471dc37a385a2d60c619dc91bb868d6fd72dc5b7583f5e123adb5c94a2a29c80776e231270b8800fd734e3af17a8264332b4f94db
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Filesize
242KB
MD5333a088ed41af0a58b8e5b79e53d4745
SHA11c144747c6cdf5b87c37076acc927148542cf347
SHA2563fd2a6318c69fba342ca26f55555d6fd4088876f0490780c64574df6b9df920c
SHA512956c10a3dd5647164a7c7d1a0c541177169e89e7015aedfa8a2e972db3c2fbb95182c7a61e7fe5450dbedff6bed2887938263afc959581204e1ac0e1c2111bbc
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954