Analysis
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max time kernel
149s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
14-06-2023 21:15
Static task
static1
Behavioral task
behavioral1
Sample
539a444f8dff3d9719e36fd9db31b799.exe
Resource
win7-20230220-en
General
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Target
539a444f8dff3d9719e36fd9db31b799.exe
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Size
3.5MB
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MD5
539a444f8dff3d9719e36fd9db31b799
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SHA1
9b4a836511afdb230888a1e2c0698c839850d8c0
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SHA256
2c5c3ba7eba30cc358b40d494fda79d9d2a6df152bdb7eb1aceb36f3fbcf60c3
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SHA512
7c14e97ff23cd34f302658a498e26d694b1d501390536eee51f9e9e2bfc68306b59362d66b7c11d364d2cc7d2e6ed78912b505476e78ae2e928fd859e2c104bd
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SSDEEP
98304:GrZtcyQgVa9BjWmic5fcD75vuHgdtZgC:GsRgVa9ltc35WHG7
Malware Config
Extracted
laplas
http://45.159.189.105
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api_key
7ee57b1f6d4aff08f9755119b18cf0754b677addcb6a3063066112b10a357a8e
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__ 539a444f8dff3d9719e36fd9db31b799.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 539a444f8dff3d9719e36fd9db31b799.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 539a444f8dff3d9719e36fd9db31b799.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 2040 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 539a444f8dff3d9719e36fd9db31b799.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 539a444f8dff3d9719e36fd9db31b799.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4644 539a444f8dff3d9719e36fd9db31b799.exe 2040 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 23 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4644 wrote to memory of 2040 4644 539a444f8dff3d9719e36fd9db31b799.exe 84 PID 4644 wrote to memory of 2040 4644 539a444f8dff3d9719e36fd9db31b799.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\539a444f8dff3d9719e36fd9db31b799.exe"C:\Users\Admin\AppData\Local\Temp\539a444f8dff3d9719e36fd9db31b799.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:4644 -
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:2040
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
756.5MB
MD5b6ab4e8d2506ede314434ab132d4e53e
SHA1808b76127ebb8788c1e53b65ba81c2f56bb65102
SHA2564148b3841bef5d6e4d77952cd6d8d4212c293351518ca40ffb93ab4002647bf1
SHA51204bb26a7e1f3070d240d13d4e7dae8c4fa287aae8bb897708b0e018c0d38a843caad5f9fd4faa58ca711c40c859c35f7e14541f20205f42350d27806df2abdb4
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Filesize
756.5MB
MD5b6ab4e8d2506ede314434ab132d4e53e
SHA1808b76127ebb8788c1e53b65ba81c2f56bb65102
SHA2564148b3841bef5d6e4d77952cd6d8d4212c293351518ca40ffb93ab4002647bf1
SHA51204bb26a7e1f3070d240d13d4e7dae8c4fa287aae8bb897708b0e018c0d38a843caad5f9fd4faa58ca711c40c859c35f7e14541f20205f42350d27806df2abdb4