Analysis
- max time kernel
83s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
06/03/2022, 12:32
General
- Target bilds.exe
- Size 1.1MB
- Sample220306-pqmmwaaec4
- SHA256 5293c26f29b4af6bc2f3f74ae1ed93537e6c311a695cc0a6920a635c57383617
Malware Config
Extracted
-
blackguard
-
https://api.telegram.org/bot1840568117:AAGlvKQeSfXkObSE7__yYc5jM9o8qSrkFUw/sendMessage?chat_id=1039923904
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.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\bilds.exe"C:\Users\Admin\AppData\Local\Temp\bilds.exe"1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3788-130-0x0000000074FA0000-0x0000000075750000-memory.dmp
memory/3788-131-0x0000000000B10000-0x0000000000C2E000-memory.dmp
memory/3788-132-0x0000000005CD0000-0x0000000006274000-memory.dmp
memory/3788-133-0x00000000055F0000-0x0000000005656000-memory.dmp
memory/3788-134-0x0000000005710000-0x0000000005711000-memory.dmp
memory/3788-135-0x0000000006320000-0x00000000063B2000-memory.dmp