Analysis
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max time kernel
270s -
max time network
282s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-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__ ntlhost.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.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 1996 ntlhost.exe -
Loads dropped DLL 1 IoCs
pid Process 1220 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\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 1220 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe 1996 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 1 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1220 wrote to memory of 1996 1220 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe 27 PID 1220 wrote to memory of 1996 1220 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe 27 PID 1220 wrote to memory of 1996 1220 04b33b3d875d0e43b08ea4b0d39c54dae21844af70a8066f567bf9c5de4c5be4.exe 27
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
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:1220 -
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:1996
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
780.6MB
MD57d7f41593d3e7652008ab568a495a270
SHA1249797be5825c435093cdb9202d6ac8e52017892
SHA2560569ab55a0eae22371e10d67fca4f6c25d929252776ec7efc99a7af21612fc9c
SHA512430b5b89dff45877be355bea819e69f173b9a05cd5ea7b3b81c79e78a3df8d073993a9fee46bf6256576aa0025340bc5a8c74f5fff78140ae6baf7f5249c4e53
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Filesize
780.6MB
MD57d7f41593d3e7652008ab568a495a270
SHA1249797be5825c435093cdb9202d6ac8e52017892
SHA2560569ab55a0eae22371e10d67fca4f6c25d929252776ec7efc99a7af21612fc9c
SHA512430b5b89dff45877be355bea819e69f173b9a05cd5ea7b3b81c79e78a3df8d073993a9fee46bf6256576aa0025340bc5a8c74f5fff78140ae6baf7f5249c4e53