Analysis
- max time kernel
108s - max time network
120s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
23/12/2022, 04:26
General
- Target Halkbank_Ekstre_20221222_073809_405251-PDF.exe
- Size 1.4MB
- Sample221223-e2ljvaba3x
- SHA256 5c3db7a9aefc84e986c525b61473a8a9cca36afa979935fb66cb34f32f7d204e
Malware Config
Extracted
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agenttesla
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https://api.telegram.org/bot5471845965:AAGz3YmV7VKz4xbC6JZYPs8qHf8J8palMmQ/
Extracted
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netwire
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reportss.duckdns.org:4411
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activex_autorun
false
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copy_executable
false
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delete_original
false
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host_id
HostId-%Rand%
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lock_executable
false
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offline_keylogger
false
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password
Password
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registry_autorun
false
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use_mutex
false
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- NetWire RAT payload 4 IoCs
- Netwire
Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- 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
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 2 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 16 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 33 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221222_073809_405251-PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221222_073809_405251-PDF.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:\Users\Admin\AppData\Local\Temp\windows.exe"C:\Users\Admin\AppData\Local\Temp\windows.exe"2⤵
- Executes dropped EXE
- 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\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\maoRbYnmvKNp.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\maoRbYnmvKNp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp848.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\windows.exe"C:\Users\Admin\AppData\Local\Temp\windows.exe"3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221222_073809_405251-PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221222_073809_405251-PDF.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221222_073809_405251-PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221222_073809_405251-PDF.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221222_073809_405251-PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221222_073809_405251-PDF.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp848.tmp
windows.exe
windows.exe
windows.exe
memory/2596-141-0x0000000000520000-0x000000000063C000-memory.dmp
memory/2828-159-0x0000000000400000-0x0000000000450000-memory.dmp
memory/2828-156-0x0000000000400000-0x0000000000450000-memory.dmp
memory/2828-155-0x0000000000400000-0x0000000000450000-memory.dmp
memory/2828-153-0x0000000000400000-0x0000000000450000-memory.dmp
memory/3444-166-0x0000000007860000-0x000000000786A000-memory.dmp
memory/3444-152-0x0000000005630000-0x0000000005C58000-memory.dmp
memory/3444-165-0x00000000077F0000-0x000000000780A000-memory.dmp
memory/3444-163-0x0000000006A80000-0x0000000006A9E000-memory.dmp
memory/3444-149-0x0000000002BE0000-0x0000000002C16000-memory.dmp
memory/3444-162-0x0000000070980000-0x00000000709CC000-memory.dmp
memory/3444-164-0x0000000007E30000-0x00000000084AA000-memory.dmp
memory/3444-160-0x00000000064F0000-0x000000000650E000-memory.dmp
memory/3444-167-0x0000000007A70000-0x0000000007B06000-memory.dmp
memory/3444-161-0x0000000006AC0000-0x0000000006AF2000-memory.dmp
memory/3444-168-0x0000000007A20000-0x0000000007A2E000-memory.dmp
memory/3444-169-0x0000000007B30000-0x0000000007B4A000-memory.dmp
memory/3444-157-0x0000000005420000-0x0000000005442000-memory.dmp
memory/3444-170-0x0000000007B10000-0x0000000007B18000-memory.dmp
memory/3444-158-0x00000000055C0000-0x0000000005626000-memory.dmp
memory/3796-146-0x0000000007110000-0x0000000007160000-memory.dmp
memory/3796-145-0x00000000063F0000-0x0000000006456000-memory.dmp
memory/3796-144-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4868-133-0x0000000005910000-0x0000000005EB4000-memory.dmp
memory/4868-134-0x0000000005400000-0x0000000005492000-memory.dmp
memory/4868-132-0x0000000000840000-0x00000000009B0000-memory.dmp
memory/4868-135-0x0000000005340000-0x000000000534A000-memory.dmp
memory/4868-136-0x0000000007DF0000-0x0000000007E8C000-memory.dmp