Analysis
- max time kernel
135s - max time network
117s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
- submitted
21/01/2024, 04:29
General
- Target 6c59f6d8524d9cbfb92e4937ce941503.exe
- Size 878KB
- Sample240121-e4a6wsehg2
- SHA256 237f6d600f9ecbd9e8d7f2091ea45734f9204b90c2c10b2837bc82b9fbe89e33
Malware Config
Extracted
-
blustealer
-
Protocol
smtp
-
Host
mail.yekamuhendislik.com
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Port
587
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Username
-
Password
MuhasebE123*
Signatures
- A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
- BluStealer
A Modular information stealer written in Visual Basic.
- A310logger Executable 2 IoCs
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\6c59f6d8524d9cbfb92e4937ce941503.exe"C:\Users\Admin\AppData\Local\Temp\6c59f6d8524d9cbfb92e4937ce941503.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TjWPgbKZz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB8F3.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\6c59f6d8524d9cbfb92e4937ce941503.exe"C:\Users\Admin\AppData\Local\Temp\6c59f6d8524d9cbfb92e4937ce941503.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
TQOARG~1.ZIP
Fox.exe
memory/2632-15-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2632-22-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2632-60-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2632-13-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2632-14-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2632-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2632-19-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2808-59-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp
memory/2808-57-0x000000001B060000-0x000000001B0E0000-memory.dmp
memory/2808-56-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp
memory/2808-55-0x0000000000A70000-0x0000000000B22000-memory.dmp
memory/2928-7-0x0000000005670000-0x00000000056CC000-memory.dmp
memory/2928-21-0x0000000074E60000-0x000000007554E000-memory.dmp
memory/2928-2-0x0000000004D70000-0x0000000004DB0000-memory.dmp
memory/2928-1-0x0000000074E60000-0x000000007554E000-memory.dmp
memory/2928-0-0x0000000000A30000-0x0000000000B12000-memory.dmp
memory/2928-3-0x0000000000540000-0x000000000055C000-memory.dmp
memory/2928-6-0x00000000055E0000-0x0000000005672000-memory.dmp
memory/2928-5-0x0000000004D70000-0x0000000004DB0000-memory.dmp
memory/2928-4-0x0000000074E60000-0x000000007554E000-memory.dmp