Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
01/01/2024, 19:54
General
- Target 3dbc477725b5a88f511f1b4e3bcc38fc.exe
- Size 1.0MB
- Sample240101-ymle3sbdg7
- SHA256 8742189aa8e9303ed7ce67da39348d2bb6628a6c5243c6e9a968499098f42178
Malware Config
Extracted
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blustealer
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Protocol
smtp
-
Host
mail.yekamuhendislik.com
-
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
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 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 2 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
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C:\Users\Admin\AppData\Local\Temp\3dbc477725b5a88f511f1b4e3bcc38fc.exe"C:\Users\Admin\AppData\Local\Temp\3dbc477725b5a88f511f1b4e3bcc38fc.exe"1⤵
- Checks computer location settings
- 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\VqTEFYQXsiQibk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2BBE.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\3dbc477725b5a88f511f1b4e3bcc38fc.exe"C:\Users\Admin\AppData\Local\Temp\3dbc477725b5a88f511f1b4e3bcc38fc.exe"2⤵
- 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
Loading Replay Monitor...
Downloads
tmp2BBE.tmp
I5ZG0DCWBR.zip
Fox.exe
Fox.exe
credentials.txt
memory/632-70-0x0000000000400000-0x0000000000456000-memory.dmp
memory/632-25-0x0000000000400000-0x0000000000456000-memory.dmp
memory/632-21-0x0000000000400000-0x0000000000456000-memory.dmp
memory/632-18-0x0000000000400000-0x0000000000456000-memory.dmp
memory/3516-3-0x0000000005BA0000-0x0000000006144000-memory.dmp
memory/3516-6-0x0000000005780000-0x000000000578A000-memory.dmp
memory/3516-11-0x0000000006F50000-0x0000000007024000-memory.dmp
memory/3516-12-0x00000000095E0000-0x0000000009646000-memory.dmp
memory/3516-9-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/3516-8-0x0000000005AF0000-0x0000000005B08000-memory.dmp
memory/3516-22-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/3516-0-0x0000000000A40000-0x0000000000B4E000-memory.dmp
memory/3516-1-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/3516-10-0x0000000005850000-0x0000000005860000-memory.dmp
memory/3516-2-0x0000000005550000-0x00000000055EC000-memory.dmp
memory/3516-7-0x00000000057F0000-0x0000000005846000-memory.dmp
memory/3516-4-0x00000000055F0000-0x0000000005682000-memory.dmp
memory/3516-5-0x0000000005850000-0x0000000005860000-memory.dmp
memory/4016-56-0x00007FFCF7870000-0x00007FFCF8331000-memory.dmp
memory/4016-65-0x00007FFCF7870000-0x00007FFCF8331000-memory.dmp
memory/4016-57-0x000000001B940000-0x000000001B950000-memory.dmp
memory/4016-55-0x0000000000D70000-0x0000000000E22000-memory.dmp