Analysis
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max time kernel
144s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
20-07-2023 08:11
Static task
static1
Behavioral task
behavioral1
Sample
f4695fd70f1ed48d7e31f7ba81380059.exe
Resource
win7-20230712-en
General
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Target
f4695fd70f1ed48d7e31f7ba81380059.exe
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Size
4.9MB
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MD5
f4695fd70f1ed48d7e31f7ba81380059
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SHA1
960a03052f1b240e9f44ea416ff7e65358d8a41a
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SHA256
626a5e1642d856a65b62dc2dff5b1369fa3bd66b000278db83d2d5d67e8289ed
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SHA512
04a5b544869cc408b66e0f2e9e669b6bc5f366bf9acd2f3d792176e8506f8808dd0cef27d7d3b8c52542566529e0dcec2d1fa0467e96f46a9013a663dff2fc59
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SSDEEP
98304:zomYgKWWA1fGjzpSmL7CfDbHsATgXCagCpSP/0aJ67k0w6wdTM:ELgKWfQzDLWTcClCpwyk0w9M
Malware Config
Extracted
laplas
http://168.100.10.236
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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__ f4695fd70f1ed48d7e31f7ba81380059.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 f4695fd70f1ed48d7e31f7ba81380059.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion f4695fd70f1ed48d7e31f7ba81380059.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 1912 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" f4695fd70f1ed48d7e31f7ba81380059.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA f4695fd70f1ed48d7e31f7ba81380059.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4844 f4695fd70f1ed48d7e31f7ba81380059.exe 1912 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 39 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4844 wrote to memory of 1912 4844 f4695fd70f1ed48d7e31f7ba81380059.exe 88 PID 4844 wrote to memory of 1912 4844 f4695fd70f1ed48d7e31f7ba81380059.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\f4695fd70f1ed48d7e31f7ba81380059.exe"C:\Users\Admin\AppData\Local\Temp\f4695fd70f1ed48d7e31f7ba81380059.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:4844 -
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:1912
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
718.9MB
MD5d1d12cff6ef404c6db8b56bd91e9cc9c
SHA1156734f4c9e4808b136a561e0bbc10ec3c62e3cd
SHA25614fb78fce1064a861751c14b1e1267031772e8e051c40f08dfe9758a960feb28
SHA51277da1bbeb01f699013b4e06f57601c858adae5260451fa85f8f4c3782e2a3703945f2f1a988fc4b887416f0917269350c1686ee7dac69341d120be2461cb0741
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Filesize
718.9MB
MD5d1d12cff6ef404c6db8b56bd91e9cc9c
SHA1156734f4c9e4808b136a561e0bbc10ec3c62e3cd
SHA25614fb78fce1064a861751c14b1e1267031772e8e051c40f08dfe9758a960feb28
SHA51277da1bbeb01f699013b4e06f57601c858adae5260451fa85f8f4c3782e2a3703945f2f1a988fc4b887416f0917269350c1686ee7dac69341d120be2461cb0741