Analysis
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max time kernel
121s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10-04-2024 10:49
Static task
static1
Behavioral task
behavioral1
Sample
4a49e2f06ba48d3a88fdeb83fb8021f3d165535e8ea5319b16a7ebe4da9c0751.dll
Resource
win7-20240221-en
General
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Target
4a49e2f06ba48d3a88fdeb83fb8021f3d165535e8ea5319b16a7ebe4da9c0751.dll
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Size
2.7MB
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MD5
c9e37a67f7e3dd3826c23ee04a62ec7b
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SHA1
aa157fabb858a9e7ae0d138246545f776934cba7
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SHA256
4a49e2f06ba48d3a88fdeb83fb8021f3d165535e8ea5319b16a7ebe4da9c0751
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SHA512
5a5912c002f7d06a39bd0f9eba82da32cd7e621e814f1060095d5d56d2a0092ee398499a6a75cb28da773f63b1320f66089ed881a59fb36e8b589deb384e92ea
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SSDEEP
49152:+jThLI9aW/+9xRAfRJiN9KtmkP8vfuGia3F2JgN8kupvjgi3M8pp/:+XdO+9x4JiN9umkP8vfuGia3F2JgN8kG
Malware Config
Extracted
bumblebee
ALL0604
192.236.198.63:443
Signatures
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Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo rundll32.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__ rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__ rundll32.exe -
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions rundll32.exe -
Checks BIOS information in registry 2 TTPs 3 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion rundll32.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\SOFTWARE\Wine rundll32.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
rundll32.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN rundll32.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
rundll32.exepid process 1092 rundll32.exe 1092 rundll32.exe 1092 rundll32.exe 1092 rundll32.exe 1092 rundll32.exe 1092 rundll32.exe 1092 rundll32.exe 1092 rundll32.exe 1092 rundll32.exe 1092 rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\4a49e2f06ba48d3a88fdeb83fb8021f3d165535e8ea5319b16a7ebe4da9c0751.dll,#11⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks for VirtualBox DLLs, possible anti-VM trick
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1092-1-0x0000000001ED0000-0x000000000211B000-memory.dmpFilesize
2.3MB
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memory/1092-0-0x0000000001ED0000-0x000000000211B000-memory.dmpFilesize
2.3MB
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memory/1092-3-0x00000000777D0000-0x0000000077979000-memory.dmpFilesize
1.7MB
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memory/1092-2-0x00000000777D0000-0x0000000077979000-memory.dmpFilesize
1.7MB
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memory/1092-4-0x00000000777D0000-0x0000000077979000-memory.dmpFilesize
1.7MB
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memory/1092-5-0x00000000777D0000-0x0000000077979000-memory.dmpFilesize
1.7MB
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memory/1092-6-0x000000007FFF0000-0x000000007FFF1000-memory.dmpFilesize
4KB
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memory/1092-7-0x00000000777D0000-0x0000000077979000-memory.dmpFilesize
1.7MB