Analysis
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max time kernel
141s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
08-05-2023 23:37
Static task
static1
Behavioral task
behavioral1
Sample
40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.exe
Resource
win7-20230220-en
General
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Target
40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.exe
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Size
3.3MB
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MD5
20e7298962b08a7caec75a45b67978ce
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SHA1
c2e44c702d9cc6c4db751230f7f2245986523277
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SHA256
40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2
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SHA512
3d341cf9da1922c45379a77126f95e36839aa3018874ce5ece61c1ea217310a0a8f355a935424e8f97ede8181cd493bd8e97c24b90c199fa3d5818f9308ba237
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SSDEEP
98304:RNk7q2ZGeQj6Aj3zn2UUuNbHlXN2An3P+7Lv2:TXEVa6A/nNtlXNf3P4
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__ 40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.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 40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.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 1584 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2768 40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.exe 1584 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 24 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2768 wrote to memory of 1584 2768 40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.exe 83 PID 2768 wrote to memory of 1584 2768 40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.exe"C:\Users\Admin\AppData\Local\Temp\40c57e10a331694ef881d692c16e8add421f56e9c49fbd2ba2b7519d6389f2a2.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:2768 -
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:1584
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
760.3MB
MD5c047a2bd454e42af580cd35ad267d7a7
SHA1d054152d64f2359b3f535af1f10686e0f5642b31
SHA256147a8a054e64c41f4d30c0372bb7007e1253e9da1df487415ba71884a553510c
SHA5127baff803775440dbb50e0de9a56b0def19d4489fa53bc8ac4e3f29905b5dfa8d4ee740ea158860a21d1d0d44ec9e5b202cc4e24eb88d71e8e0a557a2c0cac3cd
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Filesize
760.3MB
MD5c047a2bd454e42af580cd35ad267d7a7
SHA1d054152d64f2359b3f535af1f10686e0f5642b31
SHA256147a8a054e64c41f4d30c0372bb7007e1253e9da1df487415ba71884a553510c
SHA5127baff803775440dbb50e0de9a56b0def19d4489fa53bc8ac4e3f29905b5dfa8d4ee740ea158860a21d1d0d44ec9e5b202cc4e24eb88d71e8e0a557a2c0cac3cd