Analysis
- max time kernel
121s - max time network
122s - platform
windows7_x64 - resource
win7-20240419-en - resource tags
- submitted
04/06/2024, 01:00
General
- Target 031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec.exe
- Size 698KB
- Sample240604-bc3kaagd48
- SHA256 031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec
Malware Config
Extracted
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agenttesla
-
Protocol
smtp
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Host
sg2plcpnl0128.prod.sin2.secureserver.net
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Port
587
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Username
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Password
oc27-JcbRAO~
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
- Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
- Detects executables referencing many file transfer clients. Observed in information stealers 5 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.
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 24 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec.exe"C:\Users\Admin\AppData\Local\Temp\031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec.exe"1⤵
- 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\031c712370f6c655fdd1e11f2eecae2065106e3f6588415dd9dfb42914e557ec.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\QFoWfnEj.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\QFoWfnEj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp41A2.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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmp41A2.tmp
MI7U2NWOQQQJLNPQHEBI.temp
memory/2428-4-0x0000000001E60000-0x0000000001E6E000-memory.dmp
memory/2428-32-0x0000000074500000-0x0000000074BEE000-memory.dmp
memory/2428-0-0x000000007450E000-0x000000007450F000-memory.dmp
memory/2428-5-0x0000000001E70000-0x0000000001E80000-memory.dmp
memory/2428-6-0x0000000005E00000-0x0000000005E82000-memory.dmp
memory/2428-2-0x0000000074500000-0x0000000074BEE000-memory.dmp
memory/2428-1-0x0000000000970000-0x0000000000A24000-memory.dmp
memory/2428-3-0x0000000000920000-0x0000000000936000-memory.dmp
memory/2544-23-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2544-31-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2544-29-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2544-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2544-25-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2544-21-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2544-20-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2544-28-0x0000000000400000-0x0000000000442000-memory.dmp