Analysis
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max time kernel
127s -
max time network
129s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
03/04/2024, 12:30
Static task
static1
Behavioral task
behavioral1
Sample
b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe
Resource
win10v2004-20240226-en
General
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Target
b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe
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Size
430KB
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MD5
4c8bd14a837cba31f8687cff42259fa7
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SHA1
029dc10bc7e485c13053cf375df7bdaad65b6149
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SHA256
b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08
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SHA512
6bb08d475a962d9d174383f25d54bbe3827d9eda42802adcc7dbe355da6b4464d8d96e004ef516f9b7f76083b50c4bef5b0adcc707f4df8ff37f66b7862735f6
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SSDEEP
12288:9RZOzGbjLt3GCzB1CNFq0Q2rPxa5Zfxteb:9Z3GCzB1aq0Q8a5BPeb
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 behavioral1/memory/4528-141-0x00000215E4DB0000-0x00000215E86A8000-memory.dmp family_zgrat_v1 behavioral1/memory/4528-145-0x00000215EBDE0000-0x00000215EBEF0000-memory.dmp family_zgrat_v1 behavioral1/memory/4528-149-0x00000215EA4B0000-0x00000215EA4D4000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation u33o.1.exe Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation u33o.0.exe Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation JJDBFCAEBF.exe Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe -
Executes dropped EXE 3 IoCs
pid Process 3616 u33o.0.exe 2368 u33o.1.exe 2276 JJDBFCAEBF.exe -
Loads dropped DLL 2 IoCs
pid Process 3616 u33o.0.exe 3616 u33o.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 4908 4020 WerFault.exe 83 432 3616 WerFault.exe 88 -
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 u33o.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u33o.1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u33o.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 u33o.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u33o.0.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2284 PING.EXE -
Suspicious behavior: EnumeratesProcesses 29 IoCs
pid Process 3616 u33o.0.exe 3616 u33o.0.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3616 u33o.0.exe 3616 u33o.0.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4528 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe 2368 u33o.1.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4020 wrote to memory of 3616 4020 b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe 88 PID 4020 wrote to memory of 3616 4020 b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe 88 PID 4020 wrote to memory of 3616 4020 b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe 88 PID 4020 wrote to memory of 2368 4020 b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe 94 PID 4020 wrote to memory of 2368 4020 b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe 94 PID 4020 wrote to memory of 2368 4020 b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe 94 PID 2368 wrote to memory of 4528 2368 u33o.1.exe 102 PID 2368 wrote to memory of 4528 2368 u33o.1.exe 102 PID 3616 wrote to memory of 2936 3616 u33o.0.exe 105 PID 3616 wrote to memory of 2936 3616 u33o.0.exe 105 PID 3616 wrote to memory of 2936 3616 u33o.0.exe 105 PID 2936 wrote to memory of 2276 2936 cmd.exe 108 PID 2936 wrote to memory of 2276 2936 cmd.exe 108 PID 2936 wrote to memory of 2276 2936 cmd.exe 108 PID 2276 wrote to memory of 2884 2276 JJDBFCAEBF.exe 110 PID 2276 wrote to memory of 2884 2276 JJDBFCAEBF.exe 110 PID 2276 wrote to memory of 2884 2276 JJDBFCAEBF.exe 110 PID 2884 wrote to memory of 2284 2884 cmd.exe 112 PID 2884 wrote to memory of 2284 2884 cmd.exe 112 PID 2884 wrote to memory of 2284 2884 cmd.exe 112
Processes
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C:\Users\Admin\AppData\Local\Temp\b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe"C:\Users\Admin\AppData\Local\Temp\b54eac824baa26b8c0bf40e9dd0ebf0f92e546a9845b7cc462c5f9ba3ddcea08.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4020 -
C:\Users\Admin\AppData\Local\Temp\u33o.0.exe"C:\Users\Admin\AppData\Local\Temp\u33o.0.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3616 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\JJDBFCAEBF.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:2936 -
C:\Users\Admin\AppData\Local\Temp\JJDBFCAEBF.exe"C:\Users\Admin\AppData\Local\Temp\JJDBFCAEBF.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2276 -
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\JJDBFCAEBF.exe5⤵
- Suspicious use of WriteProcessMemory
PID:2884 -
C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30006⤵
- Runs ping.exe
PID:2284
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3616 -s 23283⤵
- Program crash
PID:432
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C:\Users\Admin\AppData\Local\Temp\u33o.1.exe"C:\Users\Admin\AppData\Local\Temp\u33o.1.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2368 -
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:4528
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 8602⤵
- Program crash
PID:4908
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4020 -ip 40201⤵PID:1944
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3616 -ip 36161⤵PID:4476
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
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
289KB
MD59105a03d2ead89d612c53f1dc322eb9e
SHA1af3d72c0f399ba16b678910e21eb04e8e6122bee
SHA256c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7
SHA5124dd290c0ce5fd4414600f3c869a6ee6fba2c7b8ec856d6aed0dffb17253eb0c37b4945d2c5881d1fc40547c8f1b1ef22e63fce229ebfc19022e44b8ee87b2fcf
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954