Analysis
- max time kernel
145s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
27/12/2023, 14:52
General
- Target b3cb538f57939a70656641341da72e2d.exe
- Size 1.2MB
- Sample231227-r87f4sfbbp
- SHA256 23b146523a0691aff74fe5748d14a2b00a68b5c80b747bebaa8707aa1775ca5e
Malware Config
Signatures
- BlackGuard
Infostealer first seen in Late 2021.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b3cb538f57939a70656641341da72e2d.exe"C:\Users\Admin\AppData\Local\Temp\b3cb538f57939a70656641341da72e2d.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/4992-0-0x0000000000910000-0x0000000000CB6000-memory.dmp
memory/4992-2-0x00000000740E0000-0x0000000074890000-memory.dmp
memory/4992-1-0x0000000000910000-0x0000000000CB6000-memory.dmp
memory/4992-4-0x00000000058E0000-0x00000000058F0000-memory.dmp
memory/4992-3-0x0000000005710000-0x0000000005776000-memory.dmp
memory/4992-29-0x0000000005FF0000-0x0000000006082000-memory.dmp
memory/4992-30-0x0000000007030000-0x00000000075D4000-memory.dmp
memory/4992-35-0x0000000000910000-0x0000000000CB6000-memory.dmp
memory/4992-36-0x00000000740E0000-0x0000000074890000-memory.dmp