Analysis
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max time kernel
147s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
07-05-2024 09:15
Static task
static1
Behavioral task
behavioral1
Sample
bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe
Resource
win10v2004-20240426-en
General
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Target
bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe
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Size
416KB
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MD5
25d13f57ce8c8fc5ebf595a434c5bd7e
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SHA1
a989ed2369c6f2d2740ad56333f122bdedcc394e
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SHA256
bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4
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SHA512
0e3beddcfeae3f71e0c4366f084dd43692c2cf789bd9bfd0410e33e81ee2bbbd990f63f9be136052af92c69170db859d7bd77cbaccd8ce62df26423b4ece9ed8
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SSDEEP
6144:Is39oglCbCdvUevlzUusNjv80uIGK87Veb4Ow93mKWLZmuMiv:Is3+Ypvl5cv80FGKkOwStmuv
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/4836-106-0x00000201873E0000-0x000002018AC14000-memory.dmp family_zgrat_v1 behavioral2/memory/4836-107-0x00000201A5520000-0x00000201A562A000-memory.dmp family_zgrat_v1 behavioral2/memory/4836-111-0x000002018CA60000-0x000002018CA84000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 3216 u2kc.0.exe 1972 u2kc.1.exe -
Loads dropped DLL 2 IoCs
pid Process 3216 u2kc.0.exe 3216 u2kc.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 4592 3324 WerFault.exe 79 3832 3216 WerFault.exe 82 -
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 u2kc.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u2kc.1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u2kc.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 u2kc.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u2kc.0.exe -
Suspicious behavior: EnumeratesProcesses 25 IoCs
pid Process 3216 u2kc.0.exe 3216 u2kc.0.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3216 u2kc.0.exe 3216 u2kc.0.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4836 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe 1972 u2kc.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3324 wrote to memory of 3216 3324 bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe 82 PID 3324 wrote to memory of 3216 3324 bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe 82 PID 3324 wrote to memory of 3216 3324 bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe 82 PID 3324 wrote to memory of 1972 3324 bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe 85 PID 3324 wrote to memory of 1972 3324 bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe 85 PID 3324 wrote to memory of 1972 3324 bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe 85 PID 1972 wrote to memory of 4836 1972 u2kc.1.exe 90 PID 1972 wrote to memory of 4836 1972 u2kc.1.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe"C:\Users\Admin\AppData\Local\Temp\bdd02fc4c900bfe9b923dd6ce12c6f130e7e15ed9e7a47a263276429dfaea9c4.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3324 -
C:\Users\Admin\AppData\Local\Temp\u2kc.0.exe"C:\Users\Admin\AppData\Local\Temp\u2kc.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3216 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3216 -s 24483⤵
- Program crash
PID:3832
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C:\Users\Admin\AppData\Local\Temp\u2kc.1.exe"C:\Users\Admin\AppData\Local\Temp\u2kc.1.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1972 -
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:4836
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 14082⤵
- Program crash
PID:4592
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3324 -ip 33241⤵PID:2520
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3216 -ip 32161⤵PID:4048
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
MD59dff609837d9f80dffff85e43fb69af2
SHA1b38a0d22759514e84e10b224b7b71d6aa2c0572b
SHA2561852451a652c59960000a35bfc8d26739664cfab4fd1ccb7e0936896a358ea31
SHA512a03b1db5fdc0fb0911f7e5d7990ce9ad67d493f1df72ea051e2126d3373198c3fad26a31aa04880106950ff0f66c13eb0157980770beb6fadbf337f4b6a87458
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Filesize
274KB
MD516720a0516a6e23f11a66b0b8066e5a6
SHA1edf8d8c0eead559891856cf4a962705620dcb10e
SHA256949fb9d3d6ec5bb789ec5bef973e12f4500365137f4c8b2e285b3dc6e9ac88f2
SHA512c49dc5ea54c32ae5c5ff29ab2b997b9c930e9ce7d86d52993afd17e9816e73556e1c1e57b4e27f1db99442b414ebf22adb9966f7cca3a401ca6c7f85e9d0002e
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954