Analysis
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max time kernel
150s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
submitted
06/04/2024, 05:30
Static task
static1
Behavioral task
behavioral1
Sample
615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe
Resource
win10v2004-20240226-en
General
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Target
615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe
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Size
342KB
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MD5
cc712c25984bcf46182a4fa386f39a68
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SHA1
86ab5baa6963c203d9ab43dd317a4984cd91bd1f
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SHA256
615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a
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SHA512
a6d6d198363b20a095e17f0577fb358822910cf6a47c6be459e60deaa15380a663225350a0f97812a6213e45ab2835ae3f07d6b06639fe44ed86ce7ef79a0113
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SSDEEP
6144:TnxvOxqTdkXAyVG2byslJyDPzM9TfBw/Mom9VcurkJbY:TxvOxqxkXAgd0zKTJw/MoY1mY
Malware Config
Extracted
stealc
default8
http://185.172.128.209
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url_path
/3cd2b41cbde8fc9c.php
Signatures
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Stealc family
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Downloads MZ/PE file 4 IoCs
flow pid Process 6 1364 615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe 14 4616 u11w.0.exe 8 4616 u11w.0.exe 4 1364 615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe -
Executes dropped EXE 3 IoCs
pid Process 4616 u11w.0.exe 4148 u11w.1.exe 2132 KFIJJEGHDA.exe -
Loads dropped DLL 2 IoCs
pid Process 4616 u11w.0.exe 4616 u11w.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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
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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 1264 1364 WerFault.exe 78 3888 4616 WerFault.exe 80 -
System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language KFIJJEGHDA.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language u11w.0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language u11w.1.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3388 cmd.exe 2584 PING.EXE -
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 u11w.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u11w.1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u11w.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 u11w.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u11w.0.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2584 PING.EXE -
Suspicious behavior: EnumeratesProcesses 25 IoCs
pid Process 4616 u11w.0.exe 4616 u11w.0.exe 4616 u11w.0.exe 4616 u11w.0.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4888 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe 4148 u11w.1.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1364 wrote to memory of 4616 1364 615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe 80 PID 1364 wrote to memory of 4616 1364 615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe 80 PID 1364 wrote to memory of 4616 1364 615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe 80 PID 1364 wrote to memory of 4148 1364 615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe 83 PID 1364 wrote to memory of 4148 1364 615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe 83 PID 1364 wrote to memory of 4148 1364 615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe 83 PID 4148 wrote to memory of 4888 4148 u11w.1.exe 88 PID 4148 wrote to memory of 4888 4148 u11w.1.exe 88 PID 4616 wrote to memory of 1036 4616 u11w.0.exe 89 PID 4616 wrote to memory of 1036 4616 u11w.0.exe 89 PID 4616 wrote to memory of 1036 4616 u11w.0.exe 89 PID 1036 wrote to memory of 2132 1036 cmd.exe 93 PID 1036 wrote to memory of 2132 1036 cmd.exe 93 PID 1036 wrote to memory of 2132 1036 cmd.exe 93 PID 2132 wrote to memory of 3388 2132 KFIJJEGHDA.exe 94 PID 2132 wrote to memory of 3388 2132 KFIJJEGHDA.exe 94 PID 2132 wrote to memory of 3388 2132 KFIJJEGHDA.exe 94 PID 3388 wrote to memory of 2584 3388 cmd.exe 97 PID 3388 wrote to memory of 2584 3388 cmd.exe 97 PID 3388 wrote to memory of 2584 3388 cmd.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe"C:\Users\Admin\AppData\Local\Temp\615c4352821566e4b3d5264bca6ac0d6e16c64027e464538cc84ba7c3c063b2a.exe"1⤵
- Downloads MZ/PE file
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1364 -
C:\Users\Admin\AppData\Local\Temp\u11w.0.exe"C:\Users\Admin\AppData\Local\Temp\u11w.0.exe"2⤵
- Downloads MZ/PE file
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4616 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KFIJJEGHDA.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Users\Admin\AppData\Local\Temp\KFIJJEGHDA.exe"C:\Users\Admin\AppData\Local\Temp\KFIJJEGHDA.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132 -
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\KFIJJEGHDA.exe5⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3388 -
C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30006⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2584
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4616 -s 25163⤵
- Program crash
PID:3888
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C:\Users\Admin\AppData\Local\Temp\u11w.1.exe"C:\Users\Admin\AppData\Local\Temp\u11w.1.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4148 -
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:4888
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 11642⤵
- Program crash
PID:1264
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1364 -ip 13641⤵PID:1572
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4616 -ip 46161⤵PID:4592
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
4Replay 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
2KB
MD52b13ead52cce1a9ce8e716763e83b022
SHA1581607a7721a60652ea8fa1c12e7644630fc2378
SHA2564f244e5c4ff3b68c6651c9e5bb938b5bcf0b39d975f5e80a057acbb8b429c791
SHA512136c1de97b6181e6e9fd8646652ac19b6e13c1b3df0645884f18f8de7bf69d595c6e501dfb78c900708f64b27212ad502f6aa83e25b36118db6e9d2123d1efba
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Filesize
200KB
MD5e4ff41258b1e13fc1a0cf33f83505c5b
SHA1c41a64aa8b5d921cf755d72dfd624066cbbdf6d8
SHA2560d19b90b35d268308253e621b1b3500b1d1dd98e5f72929ba6f78961423ca594
SHA512520a2c6a74f42743373e29c3aef59618e306a10a1f9ffec27990ed7533856bcc0ba8ce3174ee668418fd8325cf9ef664df29026238e21f4d234f4e7a25d0239a
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954