Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
04/05/2026, 11:42
General
- Target Builder/stub.exe
- Size 3.8MB
- Sample260504-nvdebsh19s
- SHA256 8b424e81e72bead6c3067c2988c62d52fd7456ceda8a6eb8f09fa9d884274c62
Malware Config
Extracted
-
bitrat
-
1.38
-
favorali.duckdns.org:2331
-
communication_password
81dc9bdb52d04dc20036dbd8313ed055
-
tor_process
tor
Signatures
- Family: BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
- Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Builder\stub.exe"C:\Users\Admin\AppData\Local\Temp\Builder\stub.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/5672-0-0x0000000000400000-0x00000000007CE000-memory.dmp
memory/5672-1-0x0000000074E10000-0x0000000074E4C000-memory.dmp
memory/5672-2-0x0000000075230000-0x000000007526C000-memory.dmp
memory/5672-3-0x0000000002BE0000-0x000000000301B000-memory.dmp
memory/5672-9-0x0000000074210000-0x000000007424C000-memory.dmp
memory/5672-12-0x0000000074E10000-0x0000000074E4C000-memory.dmp
memory/5672-13-0x0000000075230000-0x000000007526C000-memory.dmp
memory/5672-20-0x0000000074210000-0x000000007424C000-memory.dmp