Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
21/05/2024, 01:47
General
- Target fcaaf8296552e9a4bb23f21e2c88801c3783a163626b44b6cef6e17bbde07bf0.exe
- Size 731KB
- Sample240521-b7271aef6x
- SHA256 fcaaf8296552e9a4bb23f21e2c88801c3783a163626b44b6cef6e17bbde07bf0
Malware Config
Extracted
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agenttesla
-
Protocol
smtp
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Host
mail.shaktiinstrumentations.in
-
Port
587
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Username
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Password
Shakti54231!@#$%#@!
-
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
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C:\Users\Admin\AppData\Local\Temp\fcaaf8296552e9a4bb23f21e2c88801c3783a163626b44b6cef6e17bbde07bf0.exe"C:\Users\Admin\AppData\Local\Temp\fcaaf8296552e9a4bb23f21e2c88801c3783a163626b44b6cef6e17bbde07bf0.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\fcaaf8296552e9a4bb23f21e2c88801c3783a163626b44b6cef6e17bbde07bf0.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\NNSwwLIbU.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\NNSwwLIbU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9BC3.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
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_iirx4zyv.lpn.ps1
tmp9BC3.tmp
memory/388-10-0x000000000AF00000-0x000000000AF9C000-memory.dmp
memory/388-11-0x000000007484E000-0x000000007484F000-memory.dmp
memory/388-6-0x00000000051F0000-0x0000000005212000-memory.dmp
memory/388-7-0x0000000005370000-0x000000000537C000-memory.dmp
memory/388-8-0x00000000048F0000-0x0000000004900000-memory.dmp
memory/388-9-0x0000000006200000-0x0000000006284000-memory.dmp
memory/388-0-0x000000007484E000-0x000000007484F000-memory.dmp
memory/388-5-0x0000000074840000-0x0000000074FF0000-memory.dmp
memory/388-4-0x0000000004F00000-0x0000000004F0A000-memory.dmp
memory/388-17-0x0000000074840000-0x0000000074FF0000-memory.dmp
memory/388-3-0x0000000004F40000-0x0000000004FD2000-memory.dmp
memory/388-1-0x0000000000440000-0x00000000004FA000-memory.dmp
memory/388-31-0x0000000074840000-0x0000000074FF0000-memory.dmp
memory/388-2-0x0000000005450000-0x00000000059F4000-memory.dmp
memory/2720-81-0x0000000005EC0000-0x0000000005F10000-memory.dmp
memory/2720-24-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3300-25-0x0000000005B90000-0x0000000005BF6000-memory.dmp
memory/3300-77-0x00000000075A0000-0x00000000075BA000-memory.dmp
memory/3300-29-0x0000000005CE0000-0x0000000006034000-memory.dmp
memory/3300-26-0x0000000005C70000-0x0000000005CD6000-memory.dmp
memory/3300-23-0x00000000054B0000-0x00000000054D2000-memory.dmp
memory/3300-91-0x0000000074840000-0x0000000074FF0000-memory.dmp
memory/3300-16-0x0000000002960000-0x0000000002996000-memory.dmp
memory/3300-20-0x0000000074840000-0x0000000074FF0000-memory.dmp
memory/3300-50-0x0000000006260000-0x000000000627E000-memory.dmp
memory/3300-51-0x00000000062F0000-0x000000000633C000-memory.dmp
memory/3300-54-0x0000000070F10000-0x0000000070F5C000-memory.dmp
memory/3300-53-0x0000000007230000-0x0000000007262000-memory.dmp
memory/3300-64-0x00000000071F0000-0x000000000720E000-memory.dmp
memory/3300-65-0x0000000007470000-0x0000000007513000-memory.dmp
memory/3300-18-0x00000000054F0000-0x0000000005B18000-memory.dmp
memory/3300-85-0x00000000078C0000-0x00000000078C8000-memory.dmp
memory/3300-76-0x0000000007BF0000-0x000000000826A000-memory.dmp
memory/3300-84-0x00000000078E0000-0x00000000078FA000-memory.dmp
memory/3300-79-0x0000000007820000-0x00000000078B6000-memory.dmp
memory/3300-80-0x00000000077A0000-0x00000000077B1000-memory.dmp
memory/3300-19-0x0000000074840000-0x0000000074FF0000-memory.dmp
memory/3300-82-0x00000000077D0000-0x00000000077DE000-memory.dmp
memory/4492-83-0x0000000007790000-0x00000000077A4000-memory.dmp
memory/4492-78-0x00000000075C0000-0x00000000075CA000-memory.dmp
memory/4492-27-0x0000000074840000-0x0000000074FF0000-memory.dmp
memory/4492-66-0x0000000070F10000-0x0000000070F5C000-memory.dmp
memory/4492-92-0x0000000074840000-0x0000000074FF0000-memory.dmp
memory/4492-22-0x0000000074840000-0x0000000074FF0000-memory.dmp
memory/4492-30-0x0000000074840000-0x0000000074FF0000-memory.dmp