Analysis
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max time kernel
131s -
max time network
132s -
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 05:10
Static task
static1
Behavioral task
behavioral1
Sample
aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe
Resource
win10v2004-20240419-en
General
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Target
aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe
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Size
416KB
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MD5
b8cb97eb77d2b5ed5fa06618d4905f45
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SHA1
669965a097220ccd45faa258b7b8c229c25ec315
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SHA256
aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da
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SHA512
6af7d3fddf3bbc03692b6b3f1367bfc516d5b64c257fd776278109a870457889c3b53415c0c3cd6c124737263eb0cf8b7af224c47dfa366f8bccd2de1602c96b
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SSDEEP
6144:Wo9w+UAlO8GJjy6USAEk3//piLPXpuNoS4ObrpJhYQPH7kpCuMXl:WoiiL4AE+h6ZLS4ovhLuCzl
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/124-63-0x0000026A79BA0000-0x0000026A7D3D4000-memory.dmp family_zgrat_v1 behavioral2/memory/124-64-0x0000026A1A3C0000-0x0000026A1A4CA000-memory.dmp family_zgrat_v1 behavioral2/memory/124-68-0x0000026A1A4D0000-0x0000026A1A4F4000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 4148 u3b4.0.exe 1704 u3b4.1.exe -
Loads dropped DLL 2 IoCs
pid Process 4148 u3b4.0.exe 4148 u3b4.0.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 1560 4288 WerFault.exe 79 4024 4148 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 u3b4.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3b4.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3b4.1.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 u3b4.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u3b4.0.exe -
Suspicious behavior: EnumeratesProcesses 25 IoCs
pid Process 4148 u3b4.0.exe 4148 u3b4.0.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4148 u3b4.0.exe 4148 u3b4.0.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 124 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe 1704 u3b4.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4288 wrote to memory of 4148 4288 aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe 81 PID 4288 wrote to memory of 4148 4288 aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe 81 PID 4288 wrote to memory of 4148 4288 aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe 81 PID 4288 wrote to memory of 1704 4288 aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe 84 PID 4288 wrote to memory of 1704 4288 aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe 84 PID 4288 wrote to memory of 1704 4288 aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe 84 PID 1704 wrote to memory of 124 1704 u3b4.1.exe 90 PID 1704 wrote to memory of 124 1704 u3b4.1.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe"C:\Users\Admin\AppData\Local\Temp\aa454ce02cdf1ae74340c5cf10210a1ae98aea9f66f943fe9e934814ed62e5da.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4288 -
C:\Users\Admin\AppData\Local\Temp\u3b4.0.exe"C:\Users\Admin\AppData\Local\Temp\u3b4.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4148 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4148 -s 23403⤵
- Program crash
PID:4024
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C:\Users\Admin\AppData\Local\Temp\u3b4.1.exe"C:\Users\Admin\AppData\Local\Temp\u3b4.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1704 -
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:124
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4288 -s 16082⤵
- Program crash
PID:1560
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4288 -ip 42881⤵PID:3672
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4148 -ip 41481⤵PID:2660
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
MD533c158679b4119f084881d0682660778
SHA14787dd2ce4947e6f10042a394c28531fc62a8d76
SHA2567617ce6512424baf3838df30f75e35615b5aaf521ae8cadc826fd4bef737d4e6
SHA5121ea6e0c57642f222424fe4be3cb2a8f55be2f088719f899b1afd40d56ab289a4cb92f6b8d2614818ee003544046b4e7e09c16a4c2f86238ad5a1b62ad7c9049f
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Filesize
274KB
MD50b86580bc3b14e574c2beb830abf55b8
SHA1e0a86d8aa0323bb81a0eec6e7124f9f8a2abf8f6
SHA2561addfd78afcbb2d0b1a0f6f7a6edd96e84d3710b0d858324827d36a26c86d868
SHA512d5d375d6919159046bd7571aa08ff4819bb10ceaeef3024d6e22f092c0b5e6bd2c881249e129e0d145649bae0a85d421b0a2378b7e2f15463bc9ddbd806ad0bc
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954