Analysis
- max time kernel
121s - max time network
121s - platform
windows7_x64 - resource
win7-en-20211014 - submitted
10/11/2021, 04:20
General
- Target ziraat bankasi swift mesaji.exe
- Size 603KB
- Sample211110-ex4vmaddgp
- SHA256 3049f3aa728a2c0f15dea40eb8d46c44ab1618cb8f2a1bb739cc6760aea303f5
Malware Config
Extracted
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blustealer
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Protocol
smtp
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Host
mail.yekamuhendislik.com
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Port
587
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Username
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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 3 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). Likely ransomware behaviour.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\ziraat bankasi swift mesaji.exe"C:\Users\Admin\AppData\Local\Temp\ziraat bankasi swift mesaji.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tFqrzHcqoZfacZ.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tFqrzHcqoZfacZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8CC5.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\ziraat bankasi swift mesaji.exe"C:\Users\Admin\AppData\Local\Temp\ziraat bankasi swift mesaji.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 v6
Replay Monitor
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Downloads
memory/828-55-0x0000000000CC0000-0x0000000000CC1000-memory.dmp
memory/828-57-0x0000000076231000-0x0000000076233000-memory.dmp
memory/828-58-0x0000000004CD0000-0x0000000004CD1000-memory.dmp
memory/828-59-0x0000000000630000-0x0000000000637000-memory.dmp
memory/828-60-0x0000000007EA0000-0x0000000007F13000-memory.dmp
memory/1492-66-0x0000000000400000-0x0000000000456000-memory.dmp
memory/1492-67-0x0000000000400000-0x0000000000456000-memory.dmp
memory/1492-71-0x00000000000F0000-0x00000000000F6000-memory.dmp
memory/1492-72-0x00000000000F0000-0x00000000000FA000-memory.dmp
memory/1492-65-0x0000000000400000-0x0000000000456000-memory.dmp
memory/1492-73-0x0000000000400000-0x0000000000456000-memory.dmp
memory/1492-69-0x0000000000400000-0x0000000000456000-memory.dmp
memory/1524-77-0x0000000002411000-0x0000000002412000-memory.dmp
memory/1524-79-0x0000000002412000-0x0000000002414000-memory.dmp
memory/1524-74-0x0000000002410000-0x0000000002411000-memory.dmp
memory/1604-82-0x0000000000EC0000-0x0000000000EC1000-memory.dmp
memory/1604-84-0x000000001B240000-0x000000001B242000-memory.dmp