Analysis
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max time kernel
300s -
max time network
189s -
platform
windows10-1703_x64 -
resource
win10-20230703-en -
resource tags
arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system -
submitted
27-07-2023 22:39
Static task
static1
Behavioral task
behavioral1
Sample
b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.exe
Resource
win7-20230712-en
General
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Target
b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.exe
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Size
3.8MB
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MD5
9b79f724b8ed77f9e3ce6a71b4cf909d
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SHA1
455751b77ffb738d260c6388f191aa590c40eb50
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SHA256
b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106
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SHA512
0feb6c94b6c8fbceb8e63b0629e33d72c6080003203080b7d376a0bdf3f1a3a170bd19e1ce81ba284ea15d96414f57031361ac3dbbadf3c13090d86798906fad
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SSDEEP
98304:egg3eNxij7+KwZL+iHkrzLSAu1SEJVARl0080jeG3KshnA:hguNxZB/RSE4W2ys5A
Malware Config
Extracted
laplas
http://206.189.229.43
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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__ b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.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 b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.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 4396 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-488886677-2269338296-1239465872-1000\Software\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2916 b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.exe 4396 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 2916 wrote to memory of 4396 2916 b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.exe 70 PID 2916 wrote to memory of 4396 2916 b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.exe 70
Processes
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C:\Users\Admin\AppData\Local\Temp\b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.exe"C:\Users\Admin\AppData\Local\Temp\b95ae0c815dc8fc44d8c8bbde1e853b96c3e1389fb30bcdf1d68f8e6a74b3106.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:2916 -
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:4396
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
731.8MB
MD595807536369c822dd6e63a6ef0c5e201
SHA1581648be4bcfe9a4a0b7c0e85c09b6d33c1b5e1b
SHA2565be38345f75e129af8b7e6905de5597f3097e77a21d838461b6d390f74caf45c
SHA512eadf61d57b867d5a612950111730c9823b62910a5cc0d18ca04e895eb1f84c7de89fd37e46f88a584dce7edb04ac47410a82dc46d03374a52fca693365b4bae9
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Filesize
731.8MB
MD595807536369c822dd6e63a6ef0c5e201
SHA1581648be4bcfe9a4a0b7c0e85c09b6d33c1b5e1b
SHA2565be38345f75e129af8b7e6905de5597f3097e77a21d838461b6d390f74caf45c
SHA512eadf61d57b867d5a612950111730c9823b62910a5cc0d18ca04e895eb1f84c7de89fd37e46f88a584dce7edb04ac47410a82dc46d03374a52fca693365b4bae9