Analysis
- max time kernel
133s - max time network
116s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
01/06/2024, 02:00
General
- Target f2e1790a36ac95e802bdac123aede4a277b2a7da39ea9b6e399f9545dac51a50.exe
- Size 664KB
- Sample240601-ceyjsaeg23
- SHA256 f2e1790a36ac95e802bdac123aede4a277b2a7da39ea9b6e399f9545dac51a50
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.zeus.elastic.mediahost.gr
-
Port
587
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Username
-
Password
&FK+TNDYl^!4
Extracted
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agenttesla
-
Protocol
smtp
-
Host
mail.zeus.elastic.mediahost.gr
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Port
587
-
Username
-
Password
&FK+TNDYl^!4
-
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.
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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).
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\f2e1790a36ac95e802bdac123aede4a277b2a7da39ea9b6e399f9545dac51a50.exe"C:\Users\Admin\AppData\Local\Temp\f2e1790a36ac95e802bdac123aede4a277b2a7da39ea9b6e399f9545dac51a50.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\f2e1790a36ac95e802bdac123aede4a277b2a7da39ea9b6e399f9545dac51a50.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\qltdGmdDZDXL.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qltdGmdDZDXL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp78E9.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\f2e1790a36ac95e802bdac123aede4a277b2a7da39ea9b6e399f9545dac51a50.exe"C:\Users\Admin\AppData\Local\Temp\f2e1790a36ac95e802bdac123aede4a277b2a7da39ea9b6e399f9545dac51a50.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_zxtztxhb.3ck.ps1
tmp78E9.tmp
dpjkI.exe
memory/232-5-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/232-6-0x0000000004EC0000-0x0000000004ED6000-memory.dmp
memory/232-8-0x00000000050E0000-0x00000000050F0000-memory.dmp
memory/232-7-0x00000000050C0000-0x00000000050CE000-memory.dmp
memory/232-9-0x0000000005330000-0x00000000053B2000-memory.dmp
memory/232-10-0x0000000007F00000-0x0000000007F9C000-memory.dmp
memory/232-4-0x0000000004ED0000-0x0000000004EDA000-memory.dmp
memory/232-3-0x0000000004E10000-0x0000000004EA2000-memory.dmp
memory/232-2-0x00000000054C0000-0x0000000005A64000-memory.dmp
memory/232-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp
memory/232-46-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/232-1-0x0000000000390000-0x000000000043C000-memory.dmp
memory/2576-73-0x0000000006DA0000-0x0000000006DBA000-memory.dmp
memory/2576-78-0x0000000006FA0000-0x0000000006FB1000-memory.dmp
memory/2576-22-0x00000000053D0000-0x0000000005436000-memory.dmp
memory/2576-15-0x0000000000D20000-0x0000000000D56000-memory.dmp
memory/2576-20-0x0000000004B30000-0x0000000004B52000-memory.dmp
memory/2576-17-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/2576-90-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/2576-79-0x0000000006FD0000-0x0000000006FDE000-memory.dmp
memory/2576-23-0x0000000005440000-0x00000000054A6000-memory.dmp
memory/2576-76-0x0000000006E10000-0x0000000006E1A000-memory.dmp
memory/2576-77-0x0000000007020000-0x00000000070B6000-memory.dmp
memory/2576-50-0x0000000070DA0000-0x0000000070DEC000-memory.dmp
memory/2576-61-0x0000000006A30000-0x0000000006A4E000-memory.dmp
memory/2576-67-0x0000000006A60000-0x0000000006B03000-memory.dmp
memory/2576-49-0x00000000069F0000-0x0000000006A22000-memory.dmp
memory/2576-72-0x00000000073E0000-0x0000000007A5A000-memory.dmp
memory/2576-18-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/2576-16-0x0000000004D30000-0x0000000005358000-memory.dmp
memory/3180-48-0x0000000006EF0000-0x0000000006F3C000-memory.dmp
memory/3180-60-0x0000000070DA0000-0x0000000070DEC000-memory.dmp
memory/3180-47-0x0000000006970000-0x000000000698E000-memory.dmp
memory/3180-81-0x0000000007ED0000-0x0000000007EE4000-memory.dmp
memory/3180-82-0x0000000007FD0000-0x0000000007FEA000-memory.dmp
memory/3180-83-0x0000000007FB0000-0x0000000007FB8000-memory.dmp
memory/3180-19-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/3180-89-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/3180-43-0x0000000006460000-0x00000000067B4000-memory.dmp
memory/3180-24-0x0000000074B40000-0x00000000752F0000-memory.dmp
memory/3632-44-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3632-80-0x0000000006D90000-0x0000000006DE0000-memory.dmp