Analysis
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max time kernel
149s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
17-07-2023 16:00
Static task
static1
General
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Target
b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe
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Size
4.0MB
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MD5
e1cd1c30f4761a2bf4c878ef0a723435
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SHA1
8fe5aaf4f0906bbc33c73819fd27eb838cc096e0
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SHA256
b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6
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SHA512
ecf459342f3d6aa775fa471e9b80d457a8a6bdaae18ffe0495fb044c1a665bd6efcfe9fbf27f8e977939797b1caff468e3b5e2a41b433f080e7b63c7fc8d32d8
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SSDEEP
98304:jBFr1GYY6ihQXeuhAgNcpdWK07pWUd/nwdAS:1/7kdEQUd/nwuS
Malware Config
Extracted
laplas
http://lpls.tuktuk.ug
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api_key
a0f588021b58e0c7908a163f8750678efedf2a66bf739a12427b379aef47ccde
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__ b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.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\VideoBiosVersion b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ntlhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ntlhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe -
Executes dropped EXE 1 IoCs
pid Process 4748 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2932 b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe 4748 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 2932 wrote to memory of 4748 2932 b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe 90 PID 2932 wrote to memory of 4748 2932 b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe"C:\Users\Admin\AppData\Local\Temp\b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.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:2932 -
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:4748
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
756.0MB
MD5a0e199c3187f696aaa577dcd684a9f6d
SHA1c7e2deff808e8c1aea6a7a6e036735f2370dd7ed
SHA256b2465220752373f215b36b6076788041910edf0bae75ad71db18a19299842e25
SHA5127716976411e2cad803b908fc200ba62cdf51fca24421f40e1e51ea217cbd8732dea7a9e1dbcc926d7599f6783a28226f1d45a637d3f65440d8319e02d2d8075c
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Filesize
756.0MB
MD5a0e199c3187f696aaa577dcd684a9f6d
SHA1c7e2deff808e8c1aea6a7a6e036735f2370dd7ed
SHA256b2465220752373f215b36b6076788041910edf0bae75ad71db18a19299842e25
SHA5127716976411e2cad803b908fc200ba62cdf51fca24421f40e1e51ea217cbd8732dea7a9e1dbcc926d7599f6783a28226f1d45a637d3f65440d8319e02d2d8075c