Analysis
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max time kernel
152s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20230621-en -
resource tags
arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system -
submitted
27-06-2023 14:55
Static task
static1
Behavioral task
behavioral1
Sample
golang.exe
Resource
win7-20230621-en
General
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Target
golang.exe
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Size
681.7MB
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MD5
8d5ef85d4a5fda23812f7c2e80d84dd4
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SHA1
682705a1d5e86922ab91dd1ffbd6ea4cdd6d8012
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SHA256
fd36a0fe2ad2825423020ef28995e2ba531180528a1dad14ac3994339efec853
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SHA512
c8fb4bb15218d5370262a95cda853093def4e9601c50faa55d8896a59d12ad0d2df39671288e41e14ecd9ca53600f749a4dab0aea1fa642aeaca882b1512dc04
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SSDEEP
49152:Qonm104JVM4OcgDuOzVxpS7fjofPc1Gi0c0coPfvC/5NUS2FB5ZrA8:Pn1V4O7uIQ7UPS053fvI5NyLM8
Malware Config
Extracted
laplas
http://45.159.189.105
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api_key
0600485e41f77bbd2d4b1326d099ed57b2055cd58748ff2c8b2575fc34950a02
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__ golang.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 golang.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion golang.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 3412 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2890635272-812199704-3564780063-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" golang.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA golang.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 64 golang.exe 3412 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 33 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 64 wrote to memory of 3412 64 golang.exe 84 PID 64 wrote to memory of 3412 64 golang.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\golang.exe"C:\Users\Admin\AppData\Local\Temp\golang.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:64 -
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:3412
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1396.7MB
MD5a0ba58dfc748aa32d1e322e8667364ed
SHA183341ac26c835c6a6fab822491f5a8b88d63a84f
SHA256ec2eaad60b639e4967e68c86e9d6bf4ffaf0b98c30f2d1ab587503eb9f0fd2a7
SHA512e963d68e23f0857f896cb4cbeba15a931baf426660fae05f095cfaa6ca774ce40964ffea2dad35bb8678a58964ef33d523d964f1757edc35efda005a87a3e219