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Analysis
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max time kernel
300s -
max time network
301s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
07/05/2023, 22:17
Static task
static1
Behavioral task
behavioral1
Sample
04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe
Resource
win7-20230220-en
General
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Target
04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe
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Size
3.6MB
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MD5
bbcc6333ddfaa59c7b2fc33b5e9f98d4
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SHA1
2f089f05e18fba5f98c047f6308067b964f77efe
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SHA256
04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4
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SHA512
d288a29deab62dc4e53aa1c126e6dbe12c7e3ba6979d2c9658a30cd1299da6775944ea2b80543bbcd5bcea6f243b9726b3290ccd72fff58c4cad8280ddd0cdb8
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SSDEEP
49152:nSAL0pQ6lDL5xhY2+B6UWkMi5PjdbVAL+rUWrLWNs1b785tV/7uVnjM97KNqpIiU:8pQ6lRxC6Yd+GrD785tIE/N3EAB0F
Malware Config
Extracted
laplas
http://45.159.189.105
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api_key
f52a5c9bc5eb2f51b22f04f3e85c301ac0170a650de6044773f0a8309fbdfb79
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ntlhost.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ntlhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ntlhost.exe -
Executes dropped EXE 1 IoCs
pid Process 4208 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-640001698-3754512395-3275565439-1000\Software\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2760 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe 4208 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 2 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2760 wrote to memory of 4208 2760 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe 66 PID 2760 wrote to memory of 4208 2760 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe 66
Processes
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C:\Users\Admin\AppData\Local\Temp\04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe"C:\Users\Admin\AppData\Local\Temp\04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2760 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:4208
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
732.6MB
MD528acaae777e4d96dcda135840662bbf9
SHA1c2942fdb68063af83a0d72a8f5dbc7dc7d578431
SHA2563ecae8d5fd24cf819ac324fc19af1c621b2f288ce0c2139cec7e3038c9185c93
SHA51214b495ca208a369ef5a5e661bc2862b91e1846d6b9e19d7bd719518935c49a221dd009e1edc727daaf03454aa21a3b6dbaa05c692e8ba58b6777fc2ccc1112ce
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Filesize
732.6MB
MD528acaae777e4d96dcda135840662bbf9
SHA1c2942fdb68063af83a0d72a8f5dbc7dc7d578431
SHA2563ecae8d5fd24cf819ac324fc19af1c621b2f288ce0c2139cec7e3038c9185c93
SHA51214b495ca208a369ef5a5e661bc2862b91e1846d6b9e19d7bd719518935c49a221dd009e1edc727daaf03454aa21a3b6dbaa05c692e8ba58b6777fc2ccc1112ce