Analysis
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max time kernel
108s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
07-05-2024 19:55
Static task
static1
Behavioral task
behavioral1
Sample
c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe
Resource
win10v2004-20240419-en
General
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Target
c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe
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Size
404KB
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MD5
15971e267d82a4b9677d6321ef1f38e9
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SHA1
c4181a0bcca39c0e95da52891b6e7bf03ae220e9
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SHA256
c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f
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SHA512
4767aa8ef8d2fd44dd95dc493eaadff03423c1f3020c6a521f269d6ab1628096190c613bcb44bea80796c55ca19b2d5e76352bc39a8abcd743cb0d7a8a19e369
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SSDEEP
6144:I+hXdi5S6e9EioGDqP3/CFPi/uh9SqPLb6kACHXPH1D2B9DHf4:vi5SQGOPvCFPi/uhYwLbmC3PH1D2BR4
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/972-112-0x000001D2C5C00000-0x000001D2C9434000-memory.dmp family_zgrat_v1 behavioral2/memory/972-113-0x000001D2E3C50000-0x000001D2E3D5A000-memory.dmp family_zgrat_v1 behavioral2/memory/972-117-0x000001D2E3B90000-0x000001D2E3BB4000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 4132 u3ls.0.exe 692 u3ls.1.exe -
Loads dropped DLL 2 IoCs
pid Process 4132 u3ls.0.exe 4132 u3ls.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 1628 4672 WerFault.exe 78 992 4132 WerFault.exe 80 -
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 u3ls.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3ls.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3ls.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 u3ls.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u3ls.0.exe -
Suspicious behavior: EnumeratesProcesses 23 IoCs
pid Process 4132 u3ls.0.exe 4132 u3ls.0.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4132 u3ls.0.exe 4132 u3ls.0.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 972 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe 692 u3ls.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4672 wrote to memory of 4132 4672 c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe 80 PID 4672 wrote to memory of 4132 4672 c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe 80 PID 4672 wrote to memory of 4132 4672 c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe 80 PID 4672 wrote to memory of 692 4672 c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe 83 PID 4672 wrote to memory of 692 4672 c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe 83 PID 4672 wrote to memory of 692 4672 c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe 83 PID 692 wrote to memory of 972 692 u3ls.1.exe 89 PID 692 wrote to memory of 972 692 u3ls.1.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe"C:\Users\Admin\AppData\Local\Temp\c129f099f8590a2771c425fb6f365b940c6357f65d2b3588324919e52da8582f.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4672 -
C:\Users\Admin\AppData\Local\Temp\u3ls.0.exe"C:\Users\Admin\AppData\Local\Temp\u3ls.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4132 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4132 -s 25123⤵
- Program crash
PID:992
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C:\Users\Admin\AppData\Local\Temp\u3ls.1.exe"C:\Users\Admin\AppData\Local\Temp\u3ls.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:692 -
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:972
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4672 -s 11642⤵
- Program crash
PID:1628
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4672 -ip 46721⤵PID:1508
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4132 -ip 41321⤵PID:3324
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
3KB
MD5c659aa5627baaff1e262f72892ae9d74
SHA18d4afde0c1c3789ffee7315ace36d3a521e33ca1
SHA256251a799a097f3a1a306d858a9f221215167580fabaf3b758585c3bd067a9425a
SHA512fb156560f3975f9cf192562497f7e8c2a23f697d382bfe354693921c488a4eb16f9664fddffb5e4c64aba3dffbb1338e1228a5335d1cb464a4ba5d1bfd0a8dab
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Filesize
2KB
MD588d16c866268b03e0fb7a473fdc86404
SHA195bf3d87c1c52071f06ea3cff1d715ad310443a6
SHA256a894d1be22728c305e8357564c4c6ebe4c2a09cdbd3b93e794dadfc4ce1aa312
SHA51202162dcfe4a7a56d710c66efb24a4643b66e240388758771552dd3f7e3415af08c5523b88bc17ecff988648b6d2fc7a3b8fae35b4540ff87eba052b71c19d69c
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Filesize
262KB
MD549c818da112894812df1468c79b96bbc
SHA1b943d8877e19b59cd6f61f702c659e635fd96a4f
SHA2567dee0c70282dffb5642fe42e1d7480ace50d58fad04f41f240b99dd7be432a3a
SHA5125171905e30b07b72a32f12b0d9a39003d1a8aa83feeb25cb867a2290eed5e8bf3c6b2d7e5eb85be31a1bc818726dafd899d9956440804b2ef47d46e41c259732
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954