Analysis
- max time kernel
90s - max time network
92s - platform
windows10_x64 - resource
win10v20210408 - submitted
28/09/2021, 07:01
General
- Target 7b1bc3c113a48b6ca69d427b0e1cfd24.exe
- Size 3.4MB
- Sample210928-hs782aahe5
- SHA256 d6709fc1c76c476e6032eea8fff6eeb9ba3b33eb5f6542e4f6aaafdabf53f107
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\7b1bc3c113a48b6ca69d427b0e1cfd24.exe"C:\Users\Admin\AppData\Local\Temp\7b1bc3c113a48b6ca69d427b0e1cfd24.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/4016-114-0x0000000077870000-0x00000000779FE000-memory.dmp
memory/4016-116-0x0000000000390000-0x0000000000391000-memory.dmp
memory/4016-118-0x0000000006060000-0x0000000006061000-memory.dmp
memory/4016-119-0x0000000005990000-0x0000000005991000-memory.dmp
memory/4016-120-0x0000000005B60000-0x0000000005B61000-memory.dmp
memory/4016-121-0x00000000059F0000-0x00000000059F1000-memory.dmp
memory/4016-122-0x0000000005A40000-0x0000000005A41000-memory.dmp
memory/4016-123-0x0000000005A50000-0x0000000005A51000-memory.dmp
memory/4016-124-0x0000000007180000-0x0000000007181000-memory.dmp
memory/4016-125-0x0000000007880000-0x0000000007881000-memory.dmp
memory/4016-126-0x00000000070B0000-0x00000000070B1000-memory.dmp
memory/4016-127-0x00000000073F0000-0x00000000073F1000-memory.dmp
memory/4016-128-0x00000000082B0000-0x00000000082B1000-memory.dmp
memory/4016-129-0x00000000073D0000-0x00000000073D1000-memory.dmp
memory/4016-130-0x00000000077B0000-0x00000000077B1000-memory.dmp