Analysis
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max time kernel
139s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
12-04-2024 18:01
Static task
static1
Behavioral task
behavioral1
Sample
5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe
Resource
win10v2004-20240412-en
General
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Target
5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe
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Size
490KB
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MD5
38e2874247fff6b221c5a40f32934730
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SHA1
a615ce7f6bfeb39a9fd094c570be43e0d7fdc401
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SHA256
5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089
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SHA512
8c1be9e1e6badace316617c10d1949ecf29e1067d77984f6a5329813b76ce8f6b7fbd73c7d5a0a83ed12131f62804ccd1771e23a47c0a90d18b5770951bf52a5
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SSDEEP
6144:bgnzgxVJGo/KFIc4prUaKWv43AUoWwWHgyxSArUUeZN3EUTtwAMQaMWuIrMQVL99:EMxVJbyivpr2eUoWNHgQr2njkQorbf/l
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/2152-150-0x00000119B5AC0000-0x00000119B93B8000-memory.dmp family_zgrat_v1 behavioral1/memory/2152-153-0x00000119D4A40000-0x00000119D4B50000-memory.dmp family_zgrat_v1 behavioral1/memory/2152-157-0x00000119D4900000-0x00000119D4924000-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-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation 5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe Key value queried \REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation u3fc.1.exe Key value queried \REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation u3fc.0.exe Key value queried \REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation BKKFHIEGDH.exe -
Executes dropped EXE 3 IoCs
pid Process 4544 u3fc.0.exe 3012 u3fc.1.exe 4580 BKKFHIEGDH.exe -
Loads dropped DLL 2 IoCs
pid Process 4544 u3fc.0.exe 4544 u3fc.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 2744 4440 WerFault.exe 86 3780 4544 WerFault.exe 92 -
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 u3fc.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3fc.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u3fc.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 u3fc.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u3fc.0.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 912 PING.EXE -
Suspicious behavior: EnumeratesProcesses 38 IoCs
pid Process 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 4544 u3fc.0.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4544 u3fc.0.exe 4544 u3fc.0.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2152 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe 3012 u3fc.1.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4440 wrote to memory of 4544 4440 5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe 92 PID 4440 wrote to memory of 4544 4440 5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe 92 PID 4440 wrote to memory of 4544 4440 5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe 92 PID 4440 wrote to memory of 3012 4440 5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe 94 PID 4440 wrote to memory of 3012 4440 5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe 94 PID 4440 wrote to memory of 3012 4440 5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe 94 PID 3012 wrote to memory of 2152 3012 u3fc.1.exe 100 PID 3012 wrote to memory of 2152 3012 u3fc.1.exe 100 PID 4544 wrote to memory of 4328 4544 u3fc.0.exe 103 PID 4544 wrote to memory of 4328 4544 u3fc.0.exe 103 PID 4544 wrote to memory of 4328 4544 u3fc.0.exe 103 PID 4328 wrote to memory of 4580 4328 cmd.exe 106 PID 4328 wrote to memory of 4580 4328 cmd.exe 106 PID 4328 wrote to memory of 4580 4328 cmd.exe 106 PID 4580 wrote to memory of 3140 4580 BKKFHIEGDH.exe 108 PID 4580 wrote to memory of 3140 4580 BKKFHIEGDH.exe 108 PID 4580 wrote to memory of 3140 4580 BKKFHIEGDH.exe 108 PID 3140 wrote to memory of 912 3140 cmd.exe 110 PID 3140 wrote to memory of 912 3140 cmd.exe 110 PID 3140 wrote to memory of 912 3140 cmd.exe 110
Processes
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C:\Users\Admin\AppData\Local\Temp\5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe"C:\Users\Admin\AppData\Local\Temp\5a75581bb646c22b9b07b242e0f6cc3bac3418eee27d58a00c7bb8590a723089.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4440 -
C:\Users\Admin\AppData\Local\Temp\u3fc.0.exe"C:\Users\Admin\AppData\Local\Temp\u3fc.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:4544 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKKFHIEGDH.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:4328 -
C:\Users\Admin\AppData\Local\Temp\BKKFHIEGDH.exe"C:\Users\Admin\AppData\Local\Temp\BKKFHIEGDH.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4580 -
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\BKKFHIEGDH.exe5⤵
- Suspicious use of WriteProcessMemory
PID:3140 -
C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30006⤵
- Runs ping.exe
PID:912
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 25643⤵
- Program crash
PID:3780
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C:\Users\Admin\AppData\Local\Temp\u3fc.1.exe"C:\Users\Admin\AppData\Local\Temp\u3fc.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:3012 -
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:2152
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 16002⤵
- Program crash
PID:2744
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4380,i,16039099669790638797,10751269459111429885,262144 --variations-seed-version --mojo-platform-channel-handle=4412 /prefetch:81⤵PID:4808
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4440 -ip 44401⤵PID:4388
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=3728,i,16039099669790638797,10751269459111429885,262144 --variations-seed-version --mojo-platform-channel-handle=3204 /prefetch:31⤵PID:2552
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4544 -ip 45441⤵PID:4300
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
2B
MD5d751713988987e9331980363e24189ce
SHA197d170e1550eee4afc0af065b78cda302a97674c
SHA2564f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af
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Filesize
40B
MD520d4b8fa017a12a108c87f540836e250
SHA11ac617fac131262b6d3ce1f52f5907e31d5f6f00
SHA2566028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
SHA512507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856
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Filesize
106KB
MD5fe380780b5c35bd6d54541791151c2be
SHA17fe3a583cf91474c733f85cebf3c857682e269e1
SHA256b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53
SHA512ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c
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Filesize
349KB
MD55ea309941d118b35358391111a722ed7
SHA11a0bc1f44e188a6983c7a0f52b76eb1070227264
SHA256577d876ca52a4fe17525dba9fc3875cf2bb2c6f6de4d9dd0103d052a4790bf8f
SHA5127071dff7bf8d1336ef97ead19ccf961e5c05e36ea9f4c724d1f4f016a66a4253043f93c96adcac3dd5b508d437428fe94e918cb7233dd1b2d170aac26a7fd731
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954