Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
10-05-2024 16:00
Static task
static1
Behavioral task
behavioral1
Sample
78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe
Resource
win10v2004-20240426-en
General
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Target
78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe
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Size
373KB
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MD5
2b0451249a3de6aa04149b3d3ef71415
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SHA1
08471abb7ed21e22154044f99efda14e13ed8b96
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SHA256
78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d
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SHA512
2df244c1784d07eec3d307ad99b5062c58768cd2ffdb5cec4cab40241214f66b0846ae3b730c8fccd71c51abf1366ec263137c221f5084c38dda856d1e105192
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SSDEEP
6144:rTePZlPmlhKy8Z7Hejcr9mg7OWB2GhXJdv4Ub88F3YXCfYvPoyogzTxvc:rTePHIhKbDrdvfQ8RmCgvloUtc
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 behavioral1/memory/4892-98-0x000002B00A4F0000-0x000002B00DD24000-memory.dmp family_zgrat_v1 behavioral1/memory/4892-105-0x000002B028590000-0x000002B02869A000-memory.dmp family_zgrat_v1 behavioral1/memory/4892-109-0x000002B028340000-0x000002B028364000-memory.dmp family_zgrat_v1 -
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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation 78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe Key value queried \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation u16k.1.exe -
Executes dropped EXE 2 IoCs
pid Process 2860 u16k.0.exe 3584 u16k.1.exe -
Loads dropped DLL 2 IoCs
pid Process 2860 u16k.0.exe 2860 u16k.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 5016 1532 WerFault.exe 82 2240 2860 WerFault.exe 95 -
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 u16k.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u16k.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u16k.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 u16k.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u16k.0.exe -
Suspicious behavior: EnumeratesProcesses 26 IoCs
pid Process 2860 u16k.0.exe 2860 u16k.0.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4892 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe 3584 u16k.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1532 wrote to memory of 2860 1532 78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe 95 PID 1532 wrote to memory of 2860 1532 78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe 95 PID 1532 wrote to memory of 2860 1532 78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe 95 PID 1532 wrote to memory of 3584 1532 78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe 97 PID 1532 wrote to memory of 3584 1532 78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe 97 PID 1532 wrote to memory of 3584 1532 78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe 97 PID 3584 wrote to memory of 4892 3584 u16k.1.exe 104 PID 3584 wrote to memory of 4892 3584 u16k.1.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe"C:\Users\Admin\AppData\Local\Temp\78390a7b799d463847bbe8ff0dd1aa42df943b2e17f83c4b892aea70a279693d.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1532 -
C:\Users\Admin\AppData\Local\Temp\u16k.0.exe"C:\Users\Admin\AppData\Local\Temp\u16k.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2860 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 24003⤵
- Program crash
PID:2240
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C:\Users\Admin\AppData\Local\Temp\u16k.1.exe"C:\Users\Admin\AppData\Local\Temp\u16k.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:3584 -
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:4892
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1532 -s 11602⤵
- Program crash
PID:5016
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1532 -ip 15321⤵PID:3348
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2860 -ip 28601⤵PID:1096
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
2KB
MD5143094d7d401895e7bd366c8115f534a
SHA1ea7818d367be7cea81bfab71232e2e30bafd2de0
SHA2564fd93e47ed66c105baa4b61a86100fda6a005e63dc9a8052375a23b280e9cc0d
SHA51207b6b8c71fa0b7c3ae39219d291d4a79eb7b64a30c7f53fd5d9cea74d47a339c66994de213a0d213c638817ab72bca93d4cc612e7e518c93761d83f18f232edb
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Filesize
231KB
MD57ef8dd4292b7d2ece55b9db53d22ed30
SHA16d9316eccdc762e694ebb2950057ddb672a80953
SHA256f9ad11b6e4e476c6322766fad52633e3d7419ba96b74899188c26b5b669ff18b
SHA5125f154d79b1df078c95529a48c478771fae9330d47f8abc73a7e68978718fef3793904f3830621d53dc68b86dae53a540bc809da24495696ae5304d91350fa80c
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954