Analysis
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max time kernel
290s -
max time network
257s -
platform
windows10-1703_x64 -
resource
win10-20230703-en -
resource tags
arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system -
submitted
20-07-2023 03:36
Static task
static1
Behavioral task
behavioral1
Sample
4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe
Resource
win7-20230712-en
General
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Target
4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe
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Size
4.6MB
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MD5
44e4af2a42e0709726bc55c48755b6c6
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SHA1
f30667ab145f876ed67f3568771c9f44cbb075c8
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SHA256
4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4
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SHA512
ce98088c7ef0c6ba4e0d0acade13eca5d7dfbfea572c805bc28b26c5cb86889b0d19fdd0e194dd80398c1a4734c201045d63b406bf102f9ff10b94bef8929844
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SSDEEP
98304:N5QHGBGgZ9TeexEgENstZK0ZqjFOrbKSNm0rkR2U1PZGP0AeZ3o20SlC4W6+EhAG:NO8DZ9TePgEwPZ+OHHrLU1xI0AeZ4ClR
Malware Config
Extracted
laplas
http://lpls.tuktuk.ug
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api_key
a0f588021b58e0c7908a163f8750678efedf2a66bf739a12427b379aef47ccde
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__ 4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.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\VideoBiosVersion ntlhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ntlhost.exe -
Executes dropped EXE 1 IoCs
pid Process 2292 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2767205360-3565838719-3800013281-1000\Software\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 436 4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe 2292 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 2 IoCs
description pid Process procid_target PID 436 wrote to memory of 2292 436 4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe 69 PID 436 wrote to memory of 2292 436 4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe 69
Processes
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C:\Users\Admin\AppData\Local\Temp\4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.exe"C:\Users\Admin\AppData\Local\Temp\4f7f72d5fa0dbdd886de53c3e9bc01cd76bbb94d8d3b0d1deba3eb56d84f1ea4.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:436 -
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:2292
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
740.6MB
MD54983765ec769d630c6ef9b6c44e39630
SHA16c93bd1445dfbb8d9e86b0b1a18ff372e8698f57
SHA256dbfb9fa84afc59e27bb04931fb3daaad2df48ef10907423ccc4fed6253be42d3
SHA5129f99e66c14b368f96db8b91a5e68d1fca8189bcb508a2a58582f5f6fc5fad6b2b47b44a4966995789549d6bea93154e7c0dc5f6782356f9c211541152d2c84e2
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Filesize
740.6MB
MD54983765ec769d630c6ef9b6c44e39630
SHA16c93bd1445dfbb8d9e86b0b1a18ff372e8698f57
SHA256dbfb9fa84afc59e27bb04931fb3daaad2df48ef10907423ccc4fed6253be42d3
SHA5129f99e66c14b368f96db8b91a5e68d1fca8189bcb508a2a58582f5f6fc5fad6b2b47b44a4966995789549d6bea93154e7c0dc5f6782356f9c211541152d2c84e2