Analysis
-
max time kernel
106s -
max time network
113s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-es -
submitted
29-06-2022 16:32
Static task
static1
Behavioral task
behavioral1
Sample
aspack.dll
Resource
win7-20220414-es
Behavioral task
behavioral2
Sample
aspack.dll
Resource
win10v2004-20220414-es
Behavioral task
behavioral3
Sample
fat-0455056058.exe
Resource
win7-20220414-es
Behavioral task
behavioral4
Sample
fat-0455056058.exe
Resource
win10v2004-20220414-es
General
-
Target
aspack.dll
-
Size
8.0MB
-
MD5
7dc082e8b1d1c0bde07de2a84c9ea415
-
SHA1
346a806841d0d669ff168105f111d388fb5e69a4
-
SHA256
8f959360dd3f24ab27b4a371f53123568261bacb896a121c0660fd9d69dbddcf
-
SHA512
cecc5ffa67fb8540996c82860e97734884281272010ef213c06802627393e567d68aa4c410fdeb34ec7e47d1273cda1f8795cc8a2a546ddb4f8dcedfe44b8bb1
Malware Config
Signatures
-
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rundll32.exe -
Checks BIOS information in registry 2 TTPs 2 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\SystemBiosVersion rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion rundll32.exe -
Processes:
resource yara_rule behavioral2/memory/2636-132-0x0000000002780000-0x00000000052AE000-memory.dmp themida behavioral2/memory/2636-133-0x0000000002780000-0x00000000052AE000-memory.dmp themida behavioral2/memory/2636-134-0x0000000002780000-0x00000000052AE000-memory.dmp themida behavioral2/memory/2636-135-0x0000000002780000-0x00000000052AE000-memory.dmp themida behavioral2/memory/2636-136-0x0000000002780000-0x00000000052AE000-memory.dmp themida behavioral2/memory/2636-137-0x0000000002780000-0x00000000052AE000-memory.dmp themida -
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
rundll32.exepid process 2636 rundll32.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 764 2636 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
rundll32.exepid process 2636 rundll32.exe 2636 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 936 wrote to memory of 2636 936 rundll32.exe rundll32.exe PID 936 wrote to memory of 2636 936 rundll32.exe rundll32.exe PID 936 wrote to memory of 2636 936 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\aspack.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\aspack.dll,#12⤵
- 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
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 7763⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2636 -ip 26361⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/2636-130-0x0000000000000000-mapping.dmp
-
memory/2636-131-0x00000000771D0000-0x0000000077373000-memory.dmpFilesize
1.6MB
-
memory/2636-132-0x0000000002780000-0x00000000052AE000-memory.dmpFilesize
43.2MB
-
memory/2636-133-0x0000000002780000-0x00000000052AE000-memory.dmpFilesize
43.2MB
-
memory/2636-134-0x0000000002780000-0x00000000052AE000-memory.dmpFilesize
43.2MB
-
memory/2636-135-0x0000000002780000-0x00000000052AE000-memory.dmpFilesize
43.2MB
-
memory/2636-136-0x0000000002780000-0x00000000052AE000-memory.dmpFilesize
43.2MB
-
memory/2636-137-0x0000000002780000-0x00000000052AE000-memory.dmpFilesize
43.2MB
-
memory/2636-138-0x00000000771D0000-0x0000000077373000-memory.dmpFilesize
1.6MB