Analysis
- max time kernel
115s - max time network
88s - platform
windows7_x64 - resource
win7-20220901-en - resource tags
- submitted
28/10/2022, 02:15
General
- Target SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe
- Size 9KB
- Sample221028-cpk2faefck
- SHA256 61881ceb156b1061749e30c9e396bf12e94abedaebfe0acc723666c3f58e5ada
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- 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). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQA2AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/576-63-0x000000006FBA0000-0x000000007014B000-memory.dmp
memory/576-62-0x000000006FBA0000-0x000000007014B000-memory.dmp
memory/576-61-0x000000006FBA0000-0x000000007014B000-memory.dmp
memory/1492-58-0x0000000005500000-0x0000000005592000-memory.dmp
memory/1492-54-0x0000000000B00000-0x0000000000B08000-memory.dmp
memory/1492-57-0x0000000000AB0000-0x0000000000B04000-memory.dmp
memory/1492-56-0x00000000009B0000-0x0000000000A4A000-memory.dmp
memory/1492-55-0x0000000076BA1000-0x0000000076BA3000-memory.dmp
memory/1900-64-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1900-65-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1900-67-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1900-68-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1900-69-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1900-72-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1900-74-0x0000000000400000-0x000000000043C000-memory.dmp