Analysis
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max time kernel
133s -
max time network
130s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
01-05-2023 18:04
Static task
static1
Behavioral task
behavioral1
Sample
b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe
Resource
win10v2004-20230220-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__ b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.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 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 1540 ntlhost.exe -
Loads dropped DLL 1 IoCs
pid Process 1948 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\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 1948 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 1540 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 3 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1948 wrote to memory of 1540 1948 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 26 PID 1948 wrote to memory of 1540 1948 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 26 PID 1948 wrote to memory of 1540 1948 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 26
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:1948 -
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:1540
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
657.9MB
MD5d3a41f1cc4d4bacdb1ded394db314e49
SHA11ea032055eb6703f0b085f98d82e0d76f0b8ff8e
SHA25670db6dc0292113a2291c8b881c4e07797fef039e55665973e4cffed42d07ef9a
SHA5122eaa899c90a3769957b242ce00b6089beae9bdafe7c7aa091d667c27b0a294d33ccae401ab7c6ca3dc06ca6addc47014ff2dd12f1ab4ad7e9e2dcbbe3e6879b6
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Filesize
656.9MB
MD55559117047112d0de8e49317dade2cd7
SHA11d85ee20e452ff82b50a3613d34038b7feb950d5
SHA2560dfd152d022424cc86a76b45350e4d12929183903186581a12ac5deacfe4fc8e
SHA5124cc40dab8733583dbafae8a89ce8fb61e37cef614e24553c42e5928f4c5918e4f5159fc802c2b00dffb34cdddae9dbf5609074f2590c5a03c3131b4d72d37653