Analysis
- max time kernel
92s - max time network
96s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
01/06/2024, 01:54
General
- Target d966d9141e6f7648149e38012fc8bcdb9734247521b82922bb354243805dcf39.exe
- Size 677KB
- Sample240601-cbp38see73
- SHA256 d966d9141e6f7648149e38012fc8bcdb9734247521b82922bb354243805dcf39
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
srv.masternic.net
-
Port
587
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Username
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Password
-H{2Szxi!%qb
-
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.
- 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 21 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\d966d9141e6f7648149e38012fc8bcdb9734247521b82922bb354243805dcf39.exe"C:\Users\Admin\AppData\Local\Temp\d966d9141e6f7648149e38012fc8bcdb9734247521b82922bb354243805dcf39.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\d966d9141e6f7648149e38012fc8bcdb9734247521b82922bb354243805dcf39.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\owSOYnYjiT.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\owSOYnYjiT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEA21.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_aujfmoeo.saa.ps1
tmpEA21.tmp
memory/512-25-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/512-79-0x0000000007090000-0x00000000070A1000-memory.dmp
memory/512-76-0x0000000006E90000-0x0000000006EAA000-memory.dmp
memory/512-51-0x0000000005B80000-0x0000000005BCC000-memory.dmp
memory/512-50-0x0000000005B50000-0x0000000005B6E000-memory.dmp
memory/512-77-0x0000000006F00000-0x0000000006F0A000-memory.dmp
memory/512-80-0x00000000070C0000-0x00000000070CE000-memory.dmp
memory/512-65-0x0000000071A10000-0x0000000071A5C000-memory.dmp
memory/512-83-0x00000000071B0000-0x00000000071B8000-memory.dmp
memory/512-21-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/512-20-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/512-89-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/3904-47-0x0000000000400000-0x0000000000440000-memory.dmp
memory/3904-91-0x0000000006880000-0x00000000068D0000-memory.dmp
memory/4240-10-0x000000007522E000-0x000000007522F000-memory.dmp
memory/4240-2-0x00000000054C0000-0x0000000005A64000-memory.dmp
memory/4240-0-0x000000007522E000-0x000000007522F000-memory.dmp
memory/4240-11-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4240-4-0x0000000004DE0000-0x0000000004DEA000-memory.dmp
memory/4240-5-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4240-1-0x0000000000340000-0x00000000003F0000-memory.dmp
memory/4240-9-0x000000000A2A0000-0x000000000A33C000-memory.dmp
memory/4240-3-0x0000000004E30000-0x0000000004EC2000-memory.dmp
memory/4240-49-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4240-8-0x0000000007B40000-0x0000000007BC2000-memory.dmp
memory/4240-7-0x0000000005270000-0x0000000005280000-memory.dmp
memory/4240-6-0x0000000005250000-0x0000000005268000-memory.dmp
memory/4736-16-0x0000000000DF0000-0x0000000000E26000-memory.dmp
memory/4736-64-0x0000000006D40000-0x0000000006DE3000-memory.dmp
memory/4736-63-0x0000000006130000-0x000000000614E000-memory.dmp
memory/4736-53-0x0000000071A10000-0x0000000071A5C000-memory.dmp
memory/4736-52-0x0000000006B00000-0x0000000006B32000-memory.dmp
memory/4736-75-0x00000000074A0000-0x0000000007B1A000-memory.dmp
memory/4736-43-0x0000000005680000-0x00000000059D4000-memory.dmp
memory/4736-78-0x00000000070E0000-0x0000000007176000-memory.dmp
memory/4736-31-0x0000000004C10000-0x0000000004C76000-memory.dmp
memory/4736-32-0x0000000005410000-0x0000000005476000-memory.dmp
memory/4736-81-0x00000000070A0000-0x00000000070B4000-memory.dmp
memory/4736-82-0x00000000071A0000-0x00000000071BA000-memory.dmp
memory/4736-24-0x0000000004B70000-0x0000000004B92000-memory.dmp
memory/4736-22-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4736-19-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4736-17-0x0000000004DE0000-0x0000000005408000-memory.dmp
memory/4736-90-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4736-18-0x0000000075220000-0x00000000759D0000-memory.dmp