Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
12-05-2024 02:40
Static task
static1
Behavioral task
behavioral1
Sample
b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe
Resource
win7-20240419-en
General
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Target
b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe
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Size
387KB
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MD5
49ab2ca250abb273e1381e594917cc01
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SHA1
13eca084b2d46780bece6c54e8e92169cbc339b8
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SHA256
b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6
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SHA512
e866f166bbab59ddbdb38d44294ca5a730a48b6e9296eaddb6e7d40cf68ce3c591ae1d4990ea942944767ead78d3c9e5b5d23c7ebdc6cc5fdfb2396811600ce3
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SSDEEP
6144:JzP+6ZWEAS2YtQTTtNLiamb2gWwfGtUyeWPwj7Z9o4T9o1:JzP+6sjS3EjLKbdGtqfjC1
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/2364-128-0x000001F4CAF70000-0x000001F4CE7A4000-memory.dmp family_zgrat_v1 behavioral2/memory/2364-138-0x000001F4EA540000-0x000001F4EA64A000-memory.dmp family_zgrat_v1 behavioral2/memory/2364-142-0x000001F4EA7C0000-0x000001F4EA7E4000-memory.dmp family_zgrat_v1 -
Detect binaries embedding considerable number of MFA browser extension IDs. 2 IoCs
resource yara_rule behavioral2/memory/3564-91-0x0000000000400000-0x0000000000793000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/3564-149-0x0000000000400000-0x0000000000793000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs -
Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 2 IoCs
resource yara_rule behavioral2/memory/3564-91-0x0000000000400000-0x0000000000793000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/3564-149-0x0000000000400000-0x0000000000793000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
resource yara_rule behavioral2/memory/3564-91-0x0000000000400000-0x0000000000793000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/3564-149-0x0000000000400000-0x0000000000793000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects encrypted or obfuscated .NET executables 1 IoCs
resource yara_rule behavioral2/memory/2364-128-0x000001F4CAF70000-0x000001F4CE7A4000-memory.dmp INDICATOR_EXE_DotNET_Encrypted -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation u3wk.1.exe -
Executes dropped EXE 2 IoCs
pid Process 3564 u3wk.0.exe 2308 u3wk.1.exe -
Loads dropped DLL 2 IoCs
pid Process 3564 u3wk.0.exe 3564 u3wk.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 1952 5060 WerFault.exe 80 4328 3564 WerFault.exe 87 -
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 u3wk.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3wk.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3wk.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 u3wk.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u3wk.0.exe -
Suspicious behavior: EnumeratesProcesses 25 IoCs
pid Process 3564 u3wk.0.exe 3564 u3wk.0.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2364 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe 2308 u3wk.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5060 wrote to memory of 3564 5060 b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe 87 PID 5060 wrote to memory of 3564 5060 b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe 87 PID 5060 wrote to memory of 3564 5060 b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe 87 PID 5060 wrote to memory of 2308 5060 b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe 89 PID 5060 wrote to memory of 2308 5060 b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe 89 PID 5060 wrote to memory of 2308 5060 b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe 89 PID 2308 wrote to memory of 2364 2308 u3wk.1.exe 94 PID 2308 wrote to memory of 2364 2308 u3wk.1.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe"C:\Users\Admin\AppData\Local\Temp\b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5060 -
C:\Users\Admin\AppData\Local\Temp\u3wk.0.exe"C:\Users\Admin\AppData\Local\Temp\u3wk.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3564 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 20043⤵
- Program crash
PID:4328
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C:\Users\Admin\AppData\Local\Temp\u3wk.1.exe"C:\Users\Admin\AppData\Local\Temp\u3wk.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:2308 -
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:2364
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 11802⤵
- Program crash
PID:1952
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5060 -ip 50601⤵PID:3936
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3564 -ip 35641⤵PID:224
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
238KB
MD51f249241805d47175dfb55846df09485
SHA166407ab1cf48a4a56a28820c7bfc820a228a2ba3
SHA256736af94a2fd07dca7397c2b2068bfd1e2a71a716c5ddda5e9cb7da808355487a
SHA51299808d4e4ef7d2fa99efeb9240b8ec73e6f0206e0ddcf8f72caee4276a98034b9c9eac554e0228adc898b0e8ececdd52fd5d30a164fe66a63fadae61e53df628
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954