Analysis
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max time kernel
146s -
max time network
155s -
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 19:16
Static task
static1
Behavioral task
behavioral1
Sample
55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe
Resource
win10v2004-20240426-en
General
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Target
55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe
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Size
407KB
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MD5
cb8dcaf219c69f9d5db6255fb5aa9ab2
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SHA1
c553bbffbdff8da946288eed2829f26b7a6936a3
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SHA256
55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408
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SHA512
6dbf52cc2ac126021d34bf9ccae7d2a050954d5cc5415fc8f5dc814c49eefbec012c465ef994b60cec22b88e0476a7aec5321ac72cd71fb03c12dd3474cbad4c
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SSDEEP
6144:OYNTarFOqusAPfwQzYGEfmEPOa9oBWPjuz3UlrAM0WHfc:nNkFnAHZvEfmEPOak0jMgr7c
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/1192-142-0x0000016CA4630000-0x0000016CA7E64000-memory.dmp family_zgrat_v1 behavioral2/memory/1192-148-0x0000016CC2720000-0x0000016CC282A000-memory.dmp family_zgrat_v1 behavioral2/memory/1192-152-0x0000016CC2360000-0x0000016CC2384000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 2164 u3vk.0.exe 5080 u3vk.1.exe -
Loads dropped DLL 2 IoCs
pid Process 2164 u3vk.0.exe 2164 u3vk.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 4200 5024 WerFault.exe 78 1816 2164 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 u3vk.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3vk.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3vk.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 u3vk.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u3vk.0.exe -
Suspicious behavior: EnumeratesProcesses 23 IoCs
pid Process 2164 u3vk.0.exe 2164 u3vk.0.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2164 u3vk.0.exe 2164 u3vk.0.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1192 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe 5080 u3vk.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5024 wrote to memory of 2164 5024 55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe 80 PID 5024 wrote to memory of 2164 5024 55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe 80 PID 5024 wrote to memory of 2164 5024 55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe 80 PID 5024 wrote to memory of 5080 5024 55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe 83 PID 5024 wrote to memory of 5080 5024 55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe 83 PID 5024 wrote to memory of 5080 5024 55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe 83 PID 5080 wrote to memory of 1192 5080 u3vk.1.exe 89 PID 5080 wrote to memory of 1192 5080 u3vk.1.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe"C:\Users\Admin\AppData\Local\Temp\55da774ac7c8d510436be6a27f0628c27da180e34c747e18df57085c6e3c0408.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:5024 -
C:\Users\Admin\AppData\Local\Temp\u3vk.0.exe"C:\Users\Admin\AppData\Local\Temp\u3vk.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2164 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2164 -s 24283⤵
- Program crash
PID:1816
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C:\Users\Admin\AppData\Local\Temp\u3vk.1.exe"C:\Users\Admin\AppData\Local\Temp\u3vk.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5080 -
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:1192
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5024 -s 11602⤵
- Program crash
PID:4200
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5024 -ip 50241⤵PID:2080
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2164 -ip 21641⤵PID:2008
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
MD5ab097330b400552ff3e05d972c11aeff
SHA19eb0c127ab66489cd6fc26b46fa4613e0db2df1f
SHA256dfe486c746d8c83def6b011067d65e8ba95378009630f70033b09f8305f9a2cb
SHA51295d11e10a43f7d345f481dd161e094546c563acce1232a26699221689efadcc896069401976d6d16ffcabf2e15a85de8893ce5210fdfc700262c4bec2b7f3afb
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Filesize
266KB
MD52fa41a8338ed50713e077c198523130f
SHA1079f8148144a4c24acd87f6a30b6baf83ed79576
SHA256fe4b567f7d0775b4b0b44454d8fc2223bdd4a1311b2862687960e402c38b0693
SHA512499c72b67519ec0b70a9d6c0453bff2754e968d048ed9ad95ab8d3b2e443427178abc9e1b64b9e5b5cb000bd7c880559012d21ec7368726794727662995c09b5
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954