Analysis
- max time kernel
143s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
21/03/2023, 16:26
General
- Target QUOTATION _RFQ# 1043999.exe
- Size 1.1MB
- Sample230321-txj8jsbh76
- SHA256 c269b1931db163462343d0ecd8ef501e35e4da91c91f1464c8d526ef07a041bd
Malware Config
Extracted
-
blustealer
-
https://api.telegram.org/bot5797428905:AAGaRRXGZN1d9GGFd3sE5x4uSpCGF0PU4m4/sendMessage?chat_id=1251788325
Signatures
- BluStealer
A Modular information stealer written in Visual Basic.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
- Suspicious behavior: EnumeratesProcesses 7 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\QUOTATION _RFQ# 1043999.exe"C:\Users\Admin\AppData\Local\Temp\QUOTATION _RFQ# 1043999.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\QUOTATION _RFQ# 1043999.exe"C:\Users\Admin\AppData\Local\Temp\QUOTATION _RFQ# 1043999.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe3⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1652-139-0x0000000000400000-0x000000000046E000-memory.dmp
memory/1652-142-0x0000000000400000-0x000000000046E000-memory.dmp
memory/1652-147-0x0000000000400000-0x000000000046E000-memory.dmp
memory/2428-133-0x0000000000B20000-0x0000000000C38000-memory.dmp
memory/2428-134-0x0000000005850000-0x0000000005860000-memory.dmp
memory/2428-135-0x0000000005E10000-0x00000000063B4000-memory.dmp
memory/2428-136-0x0000000005790000-0x0000000005822000-memory.dmp
memory/2428-137-0x0000000005850000-0x0000000005860000-memory.dmp
memory/2428-138-0x0000000006F80000-0x000000000701C000-memory.dmp
memory/4564-145-0x0000000000530000-0x0000000000596000-memory.dmp