Analysis
- max time kernel
68s - max time network
71s - platform
windows10_x64 - resource
win10v20210408 - submitted
24/09/2021, 21:42
General
- Target ea7c4b1f0deb7d86c314e3e9592b7b44.exe
- Size 3.2MB
- Sample210924-1kcq9saag6
- SHA256 63ea7b76004832b5b5d0eb66d78a7f9e8d94dd5d5af35fe0198c6211df7e4580
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Themida packer 1 IoCs
Detects Themida, an advanced Windows software protection system.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ea7c4b1f0deb7d86c314e3e9592b7b44.exe"C:\Users\Admin\AppData\Local\Temp\ea7c4b1f0deb7d86c314e3e9592b7b44.exe"1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/628-114-0x0000000077E20000-0x0000000077FAE000-memory.dmp
memory/628-116-0x0000000000DB0000-0x0000000000DB1000-memory.dmp
memory/628-118-0x0000000005A20000-0x0000000005A21000-memory.dmp
memory/628-119-0x0000000005450000-0x0000000005451000-memory.dmp
memory/628-120-0x0000000005580000-0x0000000005581000-memory.dmp
memory/628-121-0x00000000031F0000-0x00000000031F1000-memory.dmp
memory/628-122-0x00000000054B0000-0x00000000054B1000-memory.dmp
memory/628-123-0x00000000054F0000-0x00000000054F1000-memory.dmp
memory/628-124-0x0000000006EB0000-0x0000000006EB1000-memory.dmp
memory/628-125-0x00000000075B0000-0x00000000075B1000-memory.dmp
memory/628-126-0x0000000007AE0000-0x0000000007AE1000-memory.dmp
memory/628-127-0x0000000006E20000-0x0000000006E21000-memory.dmp
memory/628-128-0x0000000007120000-0x0000000007121000-memory.dmp
memory/628-129-0x0000000007100000-0x0000000007101000-memory.dmp
memory/628-130-0x00000000072B0000-0x00000000072B1000-memory.dmp
memory/628-131-0x0000000008D60000-0x0000000008D61000-memory.dmp