Analysis
-
max time kernel
139s -
max time network
141s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
05-05-2024 12:31
Static task
static1
Behavioral task
behavioral1
Sample
88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe
Resource
win10v2004-20240426-en
General
-
Target
88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe
-
Size
398KB
-
MD5
51f4c436d49fa9b27b65f8daefb77a76
-
SHA1
039dccd3fd7c1e5a5b4f60b22586c48597034e8d
-
SHA256
88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64
-
SHA512
bd63384fce0a548047e10b2d18ee399be3b34bb0d941cac7e5b236d76c2097bfdbc036e78c62101bd7421f6f8b6b864fd0b64bdae9a70d5acf56486a08c3d0f0
-
SSDEEP
6144:WGuIeB32u0NksV1gwHG7zO4piTyDeDf0BRJFUydBc9qXGzRtKL1:OIeB3/0NkGSeGXO4Cye8BR3TfIqoA1
Malware Config
Extracted
stealc
http://185.172.128.150
-
url_path
/c698e1bc8a2f5e6d.php
Signatures
-
Detect ZGRat V1 3 IoCs
resource yara_rule behavioral2/memory/232-104-0x00000221CC130000-0x00000221CFA28000-memory.dmp family_zgrat_v1 behavioral2/memory/232-105-0x00000221EA1F0000-0x00000221EA300000-memory.dmp family_zgrat_v1 behavioral2/memory/232-129-0x00000221EA190000-0x00000221EA1B4000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
-
Executes dropped EXE 2 IoCs
pid Process 2656 u3lk.0.exe 5000 u3lk.1.exe -
Loads dropped DLL 2 IoCs
pid Process 2656 u3lk.0.exe 2656 u3lk.0.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 2 IoCs
pid pid_target Process procid_target 3452 4664 WerFault.exe 78 3632 2656 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 u3lk.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3lk.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3lk.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 u3lk.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u3lk.0.exe -
Suspicious behavior: EnumeratesProcesses 23 IoCs
pid Process 2656 u3lk.0.exe 2656 u3lk.0.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2656 u3lk.0.exe 2656 u3lk.0.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 232 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe 5000 u3lk.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4664 wrote to memory of 2656 4664 88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe 80 PID 4664 wrote to memory of 2656 4664 88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe 80 PID 4664 wrote to memory of 2656 4664 88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe 80 PID 4664 wrote to memory of 5000 4664 88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe 83 PID 4664 wrote to memory of 5000 4664 88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe 83 PID 4664 wrote to memory of 5000 4664 88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe 83 PID 5000 wrote to memory of 232 5000 u3lk.1.exe 89 PID 5000 wrote to memory of 232 5000 u3lk.1.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe"C:\Users\Admin\AppData\Local\Temp\88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4664 -
C:\Users\Admin\AppData\Local\Temp\u3lk.0.exe"C:\Users\Admin\AppData\Local\Temp\u3lk.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2656 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 24803⤵
- Program crash
PID:3632
-
-
-
C:\Users\Admin\AppData\Local\Temp\u3lk.1.exe"C:\Users\Admin\AppData\Local\Temp\u3lk.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5000 -
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:232
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 11962⤵
- Program crash
PID:3452
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4664 -ip 46641⤵PID:2372
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2656 -ip 26561⤵PID:1476
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
11KB
MD5a33e5b189842c5867f46566bdbf7a095
SHA1e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA2565abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
-
Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
-
Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
-
Filesize
276KB
MD51a399b9b2bdeb9777486e51b01cfd05c
SHA1a3813f4550a23cdfbc004cac3ec5222a3c38f415
SHA25689d42dfdb5860ee3c3939d8c13d6fce3c95258cff2b83bc7df88d9ac2f6b3594
SHA512e409af1d504330404c89614beb0ba4116c635e4d0c3cf0a8ba108ce4332b8ba3241350b765a98198c302c181da5e2c7fafaba30927183ee4c122aa025e3d92de
-
Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954