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Analysis
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max time kernel
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max time network
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platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
04/04/2024, 17:39
Static task
static1
Behavioral task
behavioral1
Sample
033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe
Resource
win10v2004-20240226-en
General
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Target
033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe
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Size
359KB
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MD5
4e48d2ca5b2b77a24751d66b71d99433
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SHA1
e81ef55450ace248cb9871de9bdf7a7a3c0dddc0
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SHA256
033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683
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SHA512
2cffa25930b104ab867478a98b6f204af569ecbeb691917e1bd5aac154459415eb6f1621f610554077f6002f068bb14bf42de2f735e408d3308032539bf2bc0a
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SSDEEP
6144:LHPRYx4BUMASd/zIpbwXHRI92s3uTjIT75tPr4QqqtYxUkUrvTa+iTR1:1Y+UMASxCmxI92ouTjIBtPrmIYR1
Malware Config
Extracted
stealc
http://185.172.128.209
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url_path
/3cd2b41cbde8fc9c.php
Signatures
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Detect ZGRat V1 3 IoCs
resource yara_rule behavioral2/memory/3052-146-0x0000027F01A40000-0x0000027F05338000-memory.dmp family_zgrat_v1 behavioral2/memory/3052-148-0x0000027F1FAA0000-0x0000027F1FBB0000-memory.dmp family_zgrat_v1 behavioral2/memory/3052-152-0x0000027F1FBB0000-0x0000027F1FBD4000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Executes dropped EXE 4 IoCs
pid Process 3672 u3cs.0.exe 3252 u3cs.0.exe 484 u3cs.1.exe 4108 HCAEHJJKFC.exe -
Loads dropped DLL 2 IoCs
pid Process 3252 u3cs.0.exe 3252 u3cs.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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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3672 set thread context of 3252 3672 u3cs.0.exe 83 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2520 4348 WerFault.exe 79 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3cs.1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3cs.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3cs.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u3cs.0.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 u3cs.0.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3548 PING.EXE -
Suspicious behavior: EnumeratesProcesses 26 IoCs
pid Process 3252 u3cs.0.exe 3252 u3cs.0.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3252 u3cs.0.exe 3252 u3cs.0.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3052 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe 484 u3cs.1.exe -
Suspicious use of WriteProcessMemory 29 IoCs
description pid Process procid_target PID 4348 wrote to memory of 3672 4348 033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe 80 PID 4348 wrote to memory of 3672 4348 033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe 80 PID 4348 wrote to memory of 3672 4348 033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe 80 PID 3672 wrote to memory of 3252 3672 u3cs.0.exe 83 PID 3672 wrote to memory of 3252 3672 u3cs.0.exe 83 PID 3672 wrote to memory of 3252 3672 u3cs.0.exe 83 PID 3672 wrote to memory of 3252 3672 u3cs.0.exe 83 PID 3672 wrote to memory of 3252 3672 u3cs.0.exe 83 PID 3672 wrote to memory of 3252 3672 u3cs.0.exe 83 PID 3672 wrote to memory of 3252 3672 u3cs.0.exe 83 PID 3672 wrote to memory of 3252 3672 u3cs.0.exe 83 PID 3672 wrote to memory of 3252 3672 u3cs.0.exe 83 PID 4348 wrote to memory of 484 4348 033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe 84 PID 4348 wrote to memory of 484 4348 033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe 84 PID 4348 wrote to memory of 484 4348 033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe 84 PID 484 wrote to memory of 3052 484 u3cs.1.exe 89 PID 484 wrote to memory of 3052 484 u3cs.1.exe 89 PID 3252 wrote to memory of 3116 3252 u3cs.0.exe 90 PID 3252 wrote to memory of 3116 3252 u3cs.0.exe 90 PID 3252 wrote to memory of 3116 3252 u3cs.0.exe 90 PID 3116 wrote to memory of 4108 3116 cmd.exe 92 PID 3116 wrote to memory of 4108 3116 cmd.exe 92 PID 3116 wrote to memory of 4108 3116 cmd.exe 92 PID 4108 wrote to memory of 4848 4108 HCAEHJJKFC.exe 94 PID 4108 wrote to memory of 4848 4108 HCAEHJJKFC.exe 94 PID 4108 wrote to memory of 4848 4108 HCAEHJJKFC.exe 94 PID 4848 wrote to memory of 3548 4848 cmd.exe 96 PID 4848 wrote to memory of 3548 4848 cmd.exe 96 PID 4848 wrote to memory of 3548 4848 cmd.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe"C:\Users\Admin\AppData\Local\Temp\033b2f50c6e46d7bd859a0e8689f9009f8b75861f3163cd61c8736cb78975683.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4348 -
C:\Users\Admin\AppData\Local\Temp\u3cs.0.exe"C:\Users\Admin\AppData\Local\Temp\u3cs.0.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3672 -
C:\Users\Admin\AppData\Local\Temp\u3cs.0.exe"C:\Users\Admin\AppData\Local\Temp\u3cs.0.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3252 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HCAEHJJKFC.exe"4⤵
- Suspicious use of WriteProcessMemory
PID:3116 -
C:\Users\Admin\AppData\Local\Temp\HCAEHJJKFC.exe"C:\Users\Admin\AppData\Local\Temp\HCAEHJJKFC.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4108 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\HCAEHJJKFC.exe6⤵
- Suspicious use of WriteProcessMemory
PID:4848 -
C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30007⤵
- Runs ping.exe
PID:3548
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C:\Users\Admin\AppData\Local\Temp\u3cs.1.exe"C:\Users\Admin\AppData\Local\Temp\u3cs.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:484 -
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:3052
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4348 -s 11882⤵
- Program crash
PID:2520
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4348 -ip 43481⤵PID:3900
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
106KB
MD5fe380780b5c35bd6d54541791151c2be
SHA17fe3a583cf91474c733f85cebf3c857682e269e1
SHA256b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53
SHA512ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c
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Filesize
2KB
MD55e4b542c774a057df638170598fd1a0f
SHA12c4576317fbfe5838785273382d0a7e8f29bbbbf
SHA256b49937d5ce5ae9361ab7b4e81ac76ccdb5ec5031a71d03d1b89b4099a41491b7
SHA512719b3ea14057765e9ef79d0afdfbb44bfe7d39c53e454e90a473ed8811c0d593daec274f8efa02f0529f47b3d745f8dd27ce5f696df89dfe4c423ac0b987fce9
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Filesize
3KB
MD555177f003c68469f940ccb1baa36a700
SHA116f8ed3d5f0be6bd5ca21eddcf3e919f8bf53a1b
SHA25674c3e6f1e2e4fb100d81d01707699c3c3cb9e393a117f7a2dba455b914a92e53
SHA512da7f2c7b4d66786430adda5fcfbb20a61c4ad6df7a1985824481a01da779f2e00e2badc1ed536771013039dce8ab982767a112b17f35edc9387da646ad597017
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Filesize
218KB
MD58ea1d93b5483f485d5f9faa31b93da8f
SHA1efe417a99c985f55220e493b2690bb223fb874bd
SHA2564ea48e183f9935319a1124ac40fbd2f19bcdf77f6b600293600b6e898c184059
SHA512b37a06d9b3ad90f9668f4a7fa7ae3b5426a29d62cc8353dffca9c49e3466ba152a083af9f9c2ce3b43ae79000f7052ce8ba384bf1d50e65426d0c0473a4093ec
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954