Analysis
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max time kernel
139s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
14/01/2024, 15:17
Behavioral task
behavioral1
Sample
a105e53b26d14ee11b4099ca980c3a66.exe
Resource
win7-20231215-en
6 signatures
150 seconds
General
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Target
a105e53b26d14ee11b4099ca980c3a66.exe
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Size
6.2MB
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MD5
a105e53b26d14ee11b4099ca980c3a66
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SHA1
3401dacbb0c70761ca17b05669e7d45adcfe5c94
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SHA256
516fdf7133fbdf91f3cc3ced81bef7ea2c44e18bc2c132c64805b424664f3e0c
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SHA512
1c2fb1e52179cc54b67ad34ca990d612862b0cb2cc63b28c110b2448221d72131ad70cb4043ab566a0eb01626216ba3f036dcdb868a2c27ef67207cb3c23cfde
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SSDEEP
196608:uXaNgTf9diZv0BM4rd9zCpBYKP7I/KlSPaM:uRTf20zrvzCnYe7I/KlCaM
Malware Config
Extracted
Family
lumma
C2
https://goddirtybrilliancece.fun/api
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ a105e53b26d14ee11b4099ca980c3a66.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion a105e53b26d14ee11b4099ca980c3a66.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion a105e53b26d14ee11b4099ca980c3a66.exe -
resource yara_rule behavioral2/memory/4728-0-0x00000000004F0000-0x0000000001235000-memory.dmp themida behavioral2/memory/4728-1-0x00000000004F0000-0x0000000001235000-memory.dmp themida behavioral2/memory/4728-15-0x00000000004F0000-0x0000000001235000-memory.dmp themida behavioral2/memory/4728-16-0x00000000004F0000-0x0000000001235000-memory.dmp themida behavioral2/memory/4728-17-0x00000000004F0000-0x0000000001235000-memory.dmp themida behavioral2/memory/4728-18-0x00000000004F0000-0x0000000001235000-memory.dmp themida behavioral2/memory/4728-19-0x00000000004F0000-0x0000000001235000-memory.dmp themida behavioral2/memory/4728-20-0x00000000004F0000-0x0000000001235000-memory.dmp themida behavioral2/memory/4728-21-0x00000000004F0000-0x0000000001235000-memory.dmp themida behavioral2/memory/4728-22-0x00000000004F0000-0x0000000001235000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a105e53b26d14ee11b4099ca980c3a66.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4728 a105e53b26d14ee11b4099ca980c3a66.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4972 4728 WerFault.exe 88 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4728 a105e53b26d14ee11b4099ca980c3a66.exe 4728 a105e53b26d14ee11b4099ca980c3a66.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a105e53b26d14ee11b4099ca980c3a66.exe"C:\Users\Admin\AppData\Local\Temp\a105e53b26d14ee11b4099ca980c3a66.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:4728 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4728 -s 10722⤵
- Program crash
PID:4972
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4728 -ip 47281⤵PID:4360