Analysis
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max time kernel
272s -
max time network
288s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
27-05-2023 22:21
Static task
static1
Behavioral task
behavioral1
Sample
b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe
Resource
win7-20230220-en
General
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Target
b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe
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Size
4.7MB
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MD5
4eee6a99eb6e64650469196952f9f9fb
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SHA1
f526aa5b0e48790473f9da6e4dbdfe874158b149
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SHA256
b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116
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SHA512
31c5250dbb80588121b6d01c6344e94a2f7fb06501d00af7c339a4c5694dd850779de453e8f05279c933e4d375bbf508714730bc339622ef094a2b5d9edc929d
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SSDEEP
98304:JPoB48l+avKBBXXO9G4/YZHEIkfhsg11omqL2b8UnuaAkLcWO2yb7Mw5R:JQZl+aC3XX54/+Heig11IBAZAkBO2O7M
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__ b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.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 b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.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 328 ntlhost.exe -
Loads dropped DLL 1 IoCs
pid Process 1240 b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 1240 b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe 328 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 1 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1240 wrote to memory of 328 1240 b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe 28 PID 1240 wrote to memory of 328 1240 b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe 28 PID 1240 wrote to memory of 328 1240 b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.exe"C:\Users\Admin\AppData\Local\Temp\b17670d28e2cc95784b4bb1ad7a8b3eae5e69b27896f7b755f8e7550f767e116.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:1240 -
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:328
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
836.7MB
MD54f23f87de5c743b68acf4db63d3ceb93
SHA13bb06d3d88d2e26205282b52f9d4ec452a9987ec
SHA2568305826a5778998ddd0a58d7a74ea8f5c14aa565e75d743be1d1895ffde5568c
SHA512dea466d0d319b0b63c6f31b9260621e32151fbc7d72c8bd53a23cf64f8d67a0708634092d6843403fd59e703d11904ef28b42383c96130db43eaaa4730ec2f26
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Filesize
836.7MB
MD54f23f87de5c743b68acf4db63d3ceb93
SHA13bb06d3d88d2e26205282b52f9d4ec452a9987ec
SHA2568305826a5778998ddd0a58d7a74ea8f5c14aa565e75d743be1d1895ffde5568c
SHA512dea466d0d319b0b63c6f31b9260621e32151fbc7d72c8bd53a23cf64f8d67a0708634092d6843403fd59e703d11904ef28b42383c96130db43eaaa4730ec2f26