Analysis
- max time kernel
128s - max time network
65s - platform
windows7_x64 - resource
win7v20210408 - submitted
08/10/2021, 01:15
General
- Target 8bc89e5b9e175cf9f421f9ccbc0bc7bd.exe
- Size 2.8MB
- Sample211008-bl84esdaa4
- SHA256 e5c5ed9b49632298fb4d1927636e7a97fae95bdb5b13e1a5942a5b93dd21d2f5
Score
9/10
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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8bc89e5b9e175cf9f421f9ccbc0bc7bd.exe"C:\Users\Admin\AppData\Local\Temp\8bc89e5b9e175cf9f421f9ccbc0bc7bd.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/1832-60-0x0000000075801000-0x0000000075803000-memory.dmp
memory/1832-62-0x0000000000FD0000-0x0000000000FD1000-memory.dmp
memory/1832-64-0x0000000005260000-0x0000000005261000-memory.dmp