Analysis
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max time kernel
136s -
max time network
140s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
10-05-2024 23:20
Static task
static1
Behavioral task
behavioral1
Sample
6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe
Resource
win10v2004-20240426-en
General
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Target
6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe
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Size
388KB
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MD5
eb13e8491558931e081d59aabc33c3b9
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SHA1
d2121d6477c0b6151a678124b501963ef1800870
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SHA256
6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2
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SHA512
eb088ab6ea52ffad21f23a0011d21ad1057f2571e46b741804069d39e7d96e07593c270939edc0581ff65d7fc6a0b7ae8e903a0ba480b9d33f2493db541a8acf
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SSDEEP
12288:qDlQzUu8cUKdZN3QCUAWAOnxf3kBOtHKp6:qDqLU4zU9B3cOBKp6
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/4388-141-0x0000024C013C0000-0x0000024C04BF4000-memory.dmp family_zgrat_v1 behavioral2/memory/4388-142-0x0000024C1F480000-0x0000024C1F58A000-memory.dmp family_zgrat_v1 behavioral2/memory/4388-146-0x0000024C1F300000-0x0000024C1F324000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 4056 usk.0.exe 2572 usk.1.exe -
Loads dropped DLL 2 IoCs
pid Process 4056 usk.0.exe 4056 usk.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 964 4056 WerFault.exe 81 5044 1028 WerFault.exe 78 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI usk.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI usk.1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI usk.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 usk.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString usk.0.exe -
Suspicious behavior: EnumeratesProcesses 21 IoCs
pid Process 4056 usk.0.exe 4056 usk.0.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4388 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe 2572 usk.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1028 wrote to memory of 4056 1028 6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe 81 PID 1028 wrote to memory of 4056 1028 6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe 81 PID 1028 wrote to memory of 4056 1028 6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe 81 PID 1028 wrote to memory of 2572 1028 6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe 87 PID 1028 wrote to memory of 2572 1028 6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe 87 PID 1028 wrote to memory of 2572 1028 6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe 87 PID 2572 wrote to memory of 4388 2572 usk.1.exe 91 PID 2572 wrote to memory of 4388 2572 usk.1.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe"C:\Users\Admin\AppData\Local\Temp\6593e4b3c34de224409a4559ca38c481965d3c4f41b4403235261eedb15cf3f2.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1028 -
C:\Users\Admin\AppData\Local\Temp\usk.0.exe"C:\Users\Admin\AppData\Local\Temp\usk.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4056 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4056 -s 20603⤵
- Program crash
PID:964
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C:\Users\Admin\AppData\Local\Temp\usk.1.exe"C:\Users\Admin\AppData\Local\Temp\usk.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2572 -
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:4388
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1028 -s 11562⤵
- Program crash
PID:5044
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4056 -ip 40561⤵PID:4360
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1028 -ip 10281⤵PID:1452
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
245KB
MD5cfb8824b499984790712831e50496700
SHA11288049dd8aa866991e826944b6a5c1dee0e3da0
SHA25668ab41d802805f74bde3127b20febf98c31a57ab32de9302e53e681599ac7308
SHA512b12579984e8499ae8564f6a580ef9af63bcf2b9f175badd2032b353d7fac1826dead3ea661d973fe198cae04f2d77d6b59e65fc90ea25d460c1b72b4cb56cdff
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954