Analysis
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max time kernel
120s -
max time network
185s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
05-05-2023 19:12
Static task
static1
Behavioral task
behavioral1
Sample
b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe
Resource
win7-20230220-en
General
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Target
b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe
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Size
3.6MB
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MD5
790cc6250e75861e6c0fd25fd041be87
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SHA1
0294cd435b2916514245bcf36834a598946f69ac
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SHA256
b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81
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SHA512
9ce86bd36b51f9bd20279ca1538b6e7cb7ec06f6650f40f5204ea57ea673ea1118d994c2ef360beaa0d29582fc618380e3f26cddd4dfd3ae1b32e0a845ba0ffb
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SSDEEP
49152:QAx2ellLgDUJiNKl7cIlIMkQ0KHr5xbnxxr2Xki9j+zs/7XuUf7fZeYb0BIJ9Lkr:QxeXLPgNYIMkQNHr5zh8kiQA/6ULQF9r
Malware Config
Extracted
laplas
http://45.159.189.105
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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__ b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.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 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.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 868 ntlhost.exe -
Loads dropped DLL 1 IoCs
pid Process 1708 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 1708 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 868 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 3 IoCs
description pid Process procid_target PID 1708 wrote to memory of 868 1708 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 28 PID 1708 wrote to memory of 868 1708 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 28 PID 1708 wrote to memory of 868 1708 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe"C:\Users\Admin\AppData\Local\Temp\b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:1708 -
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:868
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
265.2MB
MD57c7f5dffe9418e4a77cb5a141d90664e
SHA1b6aa15569fad85f5e3769573e3a14bd291a9b13e
SHA256068640defbb30c0c60a9688f49a1e6b1f540019bd52fb32d6a0af7fe433aeb3d
SHA5126c21662888381faef80e61cd3be27ae9f20b245a47174649da8a75371af2928b7a7fbca8a1ad8ab14396222bf382bf69b2a2298b26f08663da5991e319028dc7
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Filesize
270.7MB
MD5a9b0fe499f27322a6feeb56b48f8183c
SHA100f510ae357ae44f0cc9ef01bbea537b4bc2e04f
SHA2567a3b9f1c7ecf9b29f7b556e2e7b49da46a2cfa5d3cb68cf7f1b87d118c3c7b9b
SHA5125ebcc2a4873fe372afd51eab003e9fe27e3491a06415aa610a57f63618b00a87dd1c3d002377aa4dfea4d6b526e5be91b7dc9b07c530173c76581574321f67dd