Analysis
- max time kernel
29s - max time network
44s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - resource tags
- submitted
18/07/2022, 15:24
General
- Target gcpfqzsczq.dll
- Size 6.8MB
- Sample220718-ss2flahbfp
- SHA256 fbe44a3401b91f4fa23f2df40e6844931bfc1e8931fefcf301b786788b44a6f4
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Themida packer 8 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Program crash 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\gcpfqzsczq.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\gcpfqzsczq.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
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 7563⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3268 -ip 32681⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3268-131-0x0000000077660000-0x0000000077803000-memory.dmp
memory/3268-132-0x0000000002250000-0x0000000003347000-memory.dmp
memory/3268-133-0x0000000002250000-0x0000000003347000-memory.dmp
memory/3268-134-0x0000000002250000-0x0000000003347000-memory.dmp
memory/3268-135-0x0000000002250000-0x0000000003347000-memory.dmp
memory/3268-136-0x0000000002250000-0x0000000003347000-memory.dmp
memory/3268-137-0x0000000002250000-0x0000000003347000-memory.dmp
memory/3268-138-0x0000000002250000-0x0000000003347000-memory.dmp
memory/3268-139-0x0000000002250000-0x0000000003347000-memory.dmp
memory/3268-140-0x0000000077660000-0x0000000077803000-memory.dmp