Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
06-05-2024 12:32
Static task
static1
Behavioral task
behavioral1
Sample
c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe
Resource
win10v2004-20240426-en
General
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Target
c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe
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Size
416KB
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MD5
79b4cb9a857401b816a8a5e1dc384886
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SHA1
98ea33554ff8dcb1955d41468c5c24d35f575dbf
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SHA256
c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f
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SHA512
66b383ff2ce788f9455320853dbf0e02b0deede40f90249438efa8d6553ca0a65a43633e2ed14cef1ae9ad8c4259d114a461e7207dc1ce084a1999b01cb99137
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SSDEEP
6144:f/sljtGLGm0LFOvzmqUW8TcCovExfTp87gctz9Cc1jUyBnxeLDYtaZo:f/sljMLnmgSSecCmgpyz9C2/nO0tco
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 behavioral1/memory/4860-147-0x000002C195AA0000-0x000002C199398000-memory.dmp family_zgrat_v1 behavioral1/memory/4860-148-0x000002C1B4980000-0x000002C1B4A90000-memory.dmp family_zgrat_v1 behavioral1/memory/4860-152-0x000002C19B1B0000-0x000002C19B1D4000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe Key value queried \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation u3k4.1.exe -
Executes dropped EXE 2 IoCs
pid Process 1904 u3k4.0.exe 1648 u3k4.1.exe -
Loads dropped DLL 2 IoCs
pid Process 1904 u3k4.0.exe 1904 u3k4.0.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 436 4612 WerFault.exe 81 2616 1904 WerFault.exe 88 -
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 u3k4.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3k4.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3k4.1.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 u3k4.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u3k4.0.exe -
Suspicious behavior: EnumeratesProcesses 27 IoCs
pid Process 1904 u3k4.0.exe 1904 u3k4.0.exe 1904 u3k4.0.exe 1904 u3k4.0.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4860 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe 1648 u3k4.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4612 wrote to memory of 1904 4612 c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe 88 PID 4612 wrote to memory of 1904 4612 c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe 88 PID 4612 wrote to memory of 1904 4612 c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe 88 PID 4612 wrote to memory of 1648 4612 c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe 92 PID 4612 wrote to memory of 1648 4612 c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe 92 PID 4612 wrote to memory of 1648 4612 c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe 92 PID 1648 wrote to memory of 4860 1648 u3k4.1.exe 102 PID 1648 wrote to memory of 4860 1648 u3k4.1.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe"C:\Users\Admin\AppData\Local\Temp\c1554ac09419ee1943b805e8c8cb6e1e0543aa1083676befe932174b4e0dca6f.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4612 -
C:\Users\Admin\AppData\Local\Temp\u3k4.0.exe"C:\Users\Admin\AppData\Local\Temp\u3k4.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1904 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 24483⤵
- Program crash
PID:2616
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C:\Users\Admin\AppData\Local\Temp\u3k4.1.exe"C:\Users\Admin\AppData\Local\Temp\u3k4.1.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1648 -
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:4860
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 11522⤵
- Program crash
PID:436
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4612 -ip 46121⤵PID:3084
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1904 -ip 19041⤵PID:4372
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
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
275KB
MD59eb9464649a3e10e8aad3ce2a8e6b4f6
SHA14d8237f97a2349039f817f69ad1b0f7a317e7ade
SHA25606ca216667daf350f1b6e97e7205b0dafe3e0e27a57ce368fe998504e766791f
SHA512bb7741c17431b75a048778d00078f18f8dc0f79a2ee2386bf57eabfe8b1058015abfdf45ff667955363f5f5afd1b6d7a6754ca13b48e731d4ddc6d69cf1b2355
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954