Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
12/06/2024, 01:27
General
- Target 553ff1a6d805c5bc4001fe69e6bbf70859ebf43dcd6eba63913eb588ec4e4617.exe
- Size 683KB
- Sample240612-bval8axfmk
- SHA256 553ff1a6d805c5bc4001fe69e6bbf70859ebf43dcd6eba63913eb588ec4e4617
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.springandsummer.lk
-
Port
587
-
Username
-
Password
anu##323
-
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.
- Adds Run key to start application 2 TTPs 1 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 13 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\553ff1a6d805c5bc4001fe69e6bbf70859ebf43dcd6eba63913eb588ec4e4617.exe"C:\Users\Admin\AppData\Local\Temp\553ff1a6d805c5bc4001fe69e6bbf70859ebf43dcd6eba63913eb588ec4e4617.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\553ff1a6d805c5bc4001fe69e6bbf70859ebf43dcd6eba63913eb588ec4e4617.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\djNREAnN.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\djNREAnN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA662.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
StartupProfileData-NonInteractive
__PSScriptPolicyTest_5fasvz0y.wj5.ps1
tmpA662.tmp
memory/676-18-0x0000000005960000-0x0000000005F88000-memory.dmp
memory/676-19-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/676-71-0x000000006FA10000-0x000000006FA5C000-memory.dmp
memory/676-22-0x0000000005840000-0x00000000058A6000-memory.dmp
memory/676-27-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/676-89-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/676-24-0x0000000006040000-0x00000000060A6000-memory.dmp
memory/676-21-0x00000000057A0000-0x00000000057C2000-memory.dmp
memory/676-20-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/676-16-0x0000000002D70000-0x0000000002DA6000-memory.dmp
memory/1232-10-0x00000000088F0000-0x000000000898C000-memory.dmp
memory/1232-3-0x0000000004C40000-0x0000000004CD2000-memory.dmp
memory/1232-17-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/1232-11-0x000000007449E000-0x000000007449F000-memory.dmp
memory/1232-4-0x0000000002690000-0x000000000269A000-memory.dmp
memory/1232-5-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/1232-9-0x0000000005F00000-0x0000000005F82000-memory.dmp
memory/1232-52-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/1232-2-0x00000000053C0000-0x0000000005964000-memory.dmp
memory/1232-6-0x00000000053B0000-0x00000000053C6000-memory.dmp
memory/1232-8-0x0000000005EA0000-0x0000000005EB0000-memory.dmp
memory/1232-0-0x000000007449E000-0x000000007449F000-memory.dmp
memory/1232-7-0x0000000005E80000-0x0000000005E8E000-memory.dmp
memory/1232-1-0x0000000000120000-0x00000000001CE000-memory.dmp
memory/2528-48-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2528-91-0x0000000006170000-0x00000000061C0000-memory.dmp
memory/5048-33-0x0000000005EC0000-0x0000000006214000-memory.dmp
memory/5048-50-0x00000000063C0000-0x00000000063DE000-memory.dmp
memory/5048-53-0x0000000006AF0000-0x0000000006B22000-memory.dmp
memory/5048-65-0x0000000007710000-0x00000000077B3000-memory.dmp
memory/5048-64-0x0000000006A00000-0x0000000006A1E000-memory.dmp
memory/5048-54-0x000000006FA10000-0x000000006FA5C000-memory.dmp
memory/5048-67-0x00000000077F0000-0x000000000780A000-memory.dmp
memory/5048-66-0x0000000007E40000-0x00000000084BA000-memory.dmp
memory/5048-68-0x0000000007870000-0x000000000787A000-memory.dmp
memory/5048-69-0x0000000007A70000-0x0000000007B06000-memory.dmp
memory/5048-70-0x0000000007A10000-0x0000000007A21000-memory.dmp
memory/5048-51-0x0000000006A40000-0x0000000006A8C000-memory.dmp
memory/5048-81-0x0000000007A40000-0x0000000007A4E000-memory.dmp
memory/5048-82-0x0000000007A50000-0x0000000007A64000-memory.dmp
memory/5048-83-0x0000000007B40000-0x0000000007B5A000-memory.dmp
memory/5048-84-0x0000000007B30000-0x0000000007B38000-memory.dmp
memory/5048-86-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/5048-26-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/5048-45-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/5048-25-0x0000000074490000-0x0000000074C40000-memory.dmp