Analysis
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max time kernel
138s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
07-05-2023 06:10
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 1172 ntlhost.exe -
Loads dropped DLL 1 IoCs
pid Process 828 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\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 828 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 1172 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 828 wrote to memory of 1172 828 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 27 PID 828 wrote to memory of 1172 828 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 27 PID 828 wrote to memory of 1172 828 b93d0d4b15a7c44c7be7513a952dd5f71c018ac75a8c8dbac88c3c49aad00b81.exe 27
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:828 -
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:1172
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
503.1MB
MD5c4d1597951be61880964af4bf760fd60
SHA1948938bec419f055bfc3e509897f003430a3e5bf
SHA25603bb933f86d8d7383b060d67dbd4f56d1452451f6ee77b04756108df231efa8c
SHA5121473a0d927f0b4e1bd929a8af0686fd39833be9b3ee5263ac256f4ed5f4939b2c21fee3deeac5cc455db062c83bdffe9806db2104860237985344b15265466fa
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Filesize
492.4MB
MD538c5fd14e2ebd346894b1cbe4a6931c1
SHA1474281973b8772c064ffadb8e33d7cd422aa5bf1
SHA256dc41920acc4ff994b2c7ed2cbd4be927613df4476f448e5341a90335af4d8433
SHA5127226ebaddd9939d1c883f905df1c2e491b76e963ee2a1459eea0b54db9acdf091e0cc08ed40d6ae3603c9bded725b127eb68e94e512c9529902d21172ad30266