Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
04/06/2024, 01:02
General
- Target 0d89f9c07d7604f3ca0f4949f17613d6b09a8445b8459e4fd57f0e10fe465ed0.exe
- Size 865KB
- Sample240604-bdvwtsff41
- SHA256 0d89f9c07d7604f3ca0f4949f17613d6b09a8445b8459e4fd57f0e10fe465ed0
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.formosabag.co.id
-
Port
587
-
Username
-
Password
@2022exim02^^**
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.formosabag.co.id
-
Port
587
-
Username
-
Password
@2022exim02^^**
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
- Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
- Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- 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 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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\0d89f9c07d7604f3ca0f4949f17613d6b09a8445b8459e4fd57f0e10fe465ed0.exe"C:\Users\Admin\AppData\Local\Temp\0d89f9c07d7604f3ca0f4949f17613d6b09a8445b8459e4fd57f0e10fe465ed0.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\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\0d89f9c07d7604f3ca0f4949f17613d6b09a8445b8459e4fd57f0e10fe465ed0.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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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\xVclFITYpVbZ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xVclFITYpVbZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp70AC.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\0d89f9c07d7604f3ca0f4949f17613d6b09a8445b8459e4fd57f0e10fe465ed0.exe"C:\Users\Admin\AppData\Local\Temp\0d89f9c07d7604f3ca0f4949f17613d6b09a8445b8459e4fd57f0e10fe465ed0.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_shgo51hm.41x.ps1
tmp70AC.tmp
memory/1000-91-0x0000000006CB0000-0x0000000006D00000-memory.dmp
memory/1000-36-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2364-35-0x0000000005F00000-0x0000000005F66000-memory.dmp
memory/2364-77-0x0000000007990000-0x0000000007A26000-memory.dmp
memory/2364-90-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/2364-83-0x0000000007A30000-0x0000000007A38000-memory.dmp
memory/2364-82-0x0000000007A50000-0x0000000007A6A000-memory.dmp
memory/2364-81-0x0000000007950000-0x0000000007964000-memory.dmp
memory/2364-16-0x0000000004E30000-0x0000000004E66000-memory.dmp
memory/2364-17-0x0000000005630000-0x0000000005C58000-memory.dmp
memory/2364-18-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/2364-19-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/2364-79-0x0000000007940000-0x000000000794E000-memory.dmp
memory/2364-78-0x0000000007910000-0x0000000007921000-memory.dmp
memory/2364-27-0x00000000055B0000-0x00000000055D2000-memory.dmp
memory/2364-32-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/2364-66-0x0000000007780000-0x000000000778A000-memory.dmp
memory/2364-64-0x0000000007DB0000-0x000000000842A000-memory.dmp
memory/2364-65-0x0000000007500000-0x000000000751A000-memory.dmp
memory/2364-62-0x0000000006980000-0x000000000699E000-memory.dmp
memory/2364-63-0x00000000073A0000-0x0000000007443000-memory.dmp
memory/2364-33-0x0000000005E70000-0x0000000005ED6000-memory.dmp
memory/2364-52-0x0000000071700000-0x000000007174C000-memory.dmp
memory/2364-49-0x00000000063C0000-0x00000000063DE000-memory.dmp
memory/2364-50-0x00000000067E0000-0x000000000682C000-memory.dmp
memory/2364-51-0x00000000069A0000-0x00000000069D2000-memory.dmp
memory/4416-67-0x0000000071700000-0x000000007174C000-memory.dmp
memory/4416-89-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/4416-38-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/4416-20-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/4416-34-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/4808-6-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/4808-5-0x0000000005660000-0x000000000566A000-memory.dmp
memory/4808-7-0x0000000005E60000-0x0000000005E76000-memory.dmp
memory/4808-39-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/4808-4-0x00000000052E0000-0x0000000005634000-memory.dmp
memory/4808-11-0x0000000008FF0000-0x000000000908C000-memory.dmp
memory/4808-10-0x0000000006810000-0x0000000006892000-memory.dmp
memory/4808-9-0x00000000067A0000-0x00000000067B0000-memory.dmp
memory/4808-0-0x000000007539E000-0x000000007539F000-memory.dmp
memory/4808-3-0x0000000005180000-0x0000000005212000-memory.dmp
memory/4808-2-0x0000000005690000-0x0000000005C34000-memory.dmp
memory/4808-8-0x0000000006790000-0x000000000679E000-memory.dmp
memory/4808-1-0x0000000000680000-0x000000000075A000-memory.dmp