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
18-07-2023 04:01
Static task
static1
Behavioral task
behavioral1
Sample
b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe
Resource
win7-20230712-en
General
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Target
b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe
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Size
4.0MB
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MD5
e1cd1c30f4761a2bf4c878ef0a723435
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SHA1
8fe5aaf4f0906bbc33c73819fd27eb838cc096e0
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SHA256
b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6
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SHA512
ecf459342f3d6aa775fa471e9b80d457a8a6bdaae18ffe0495fb044c1a665bd6efcfe9fbf27f8e977939797b1caff468e3b5e2a41b433f080e7b63c7fc8d32d8
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SSDEEP
98304:jBFr1GYY6ihQXeuhAgNcpdWK07pWUd/nwdAS:1/7kdEQUd/nwuS
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__ ntlhost.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.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 b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ntlhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ntlhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe -
Executes dropped EXE 1 IoCs
pid Process 4768 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4175128012-676912335-1083716439-1000\Software\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4012 b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe 4768 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 4012 wrote to memory of 4768 4012 b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe 70 PID 4012 wrote to memory of 4768 4012 b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe 70
Processes
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C:\Users\Admin\AppData\Local\Temp\b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.exe"C:\Users\Admin\AppData\Local\Temp\b20d74c759e6d677148c3cf1ddac1056631d69ec738f098d2c8103782d8d82c6.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:4012 -
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:4768
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
840.0MB
MD5acd4fc06066d89d0e74803cfb93b1970
SHA182c420c91f4c5ac2b0e8081d06dc0463e7a51a43
SHA256575eb5a2f8c6088a79fc8882c0401b05e8ad07cd09809c3e56ca53b2b2c9dc63
SHA51284d11d6f881b83c0bfd339724185ce49c820be93d1763c6eb5c1dfaee61adbfe99b3d535b772babb35c23bf0a78ede0e6868fe2652a2e74725e62214528c3366
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Filesize
840.0MB
MD5acd4fc06066d89d0e74803cfb93b1970
SHA182c420c91f4c5ac2b0e8081d06dc0463e7a51a43
SHA256575eb5a2f8c6088a79fc8882c0401b05e8ad07cd09809c3e56ca53b2b2c9dc63
SHA51284d11d6f881b83c0bfd339724185ce49c820be93d1763c6eb5c1dfaee61adbfe99b3d535b772babb35c23bf0a78ede0e6868fe2652a2e74725e62214528c3366