Analysis
- max time kernel
122s - max time network
125s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
15/10/2021, 12:37
General
- Target c4312799dc3d9b762aff46626acfafbf.exe
- Size 2.8MB
- Sample211015-ptgk2aahf4
- SHA256 2c2d995db36b2f97f96fc48276e363151be9e9324d5d1e64718bafb1e0749483
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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\c4312799dc3d9b762aff46626acfafbf.exe"C:\Users\Admin\AppData\Local\Temp\c4312799dc3d9b762aff46626acfafbf.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/1892-117-0x0000000000D10000-0x0000000000D11000-memory.dmp
memory/1892-119-0x0000000077E30000-0x0000000077FBE000-memory.dmp
memory/1892-120-0x00000000062C0000-0x00000000062C1000-memory.dmp
memory/1892-121-0x0000000005CD0000-0x0000000005CD1000-memory.dmp
memory/1892-122-0x0000000005E00000-0x0000000005E01000-memory.dmp
memory/1892-123-0x0000000005D30000-0x0000000005D31000-memory.dmp
memory/1892-124-0x00000000060E0000-0x00000000060E1000-memory.dmp
memory/1892-125-0x0000000005DB0000-0x0000000005DB1000-memory.dmp
memory/1892-126-0x0000000005CA0000-0x0000000005CA1000-memory.dmp
memory/1892-127-0x00000000070F0000-0x00000000070F1000-memory.dmp
memory/1892-128-0x00000000076C0000-0x00000000076C1000-memory.dmp
memory/1892-129-0x00000000080F0000-0x00000000080F1000-memory.dmp
memory/1892-130-0x00000000073B0000-0x00000000073B1000-memory.dmp
memory/1892-131-0x00000000074A0000-0x00000000074A1000-memory.dmp
memory/1892-132-0x0000000007660000-0x0000000007661000-memory.dmp
memory/1892-133-0x0000000007F00000-0x0000000007F01000-memory.dmp