Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
04/07/2024, 04:26
General
- Target SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.1680.5378.exe
- Size 959KB
- Sample240704-e2hsyswfnd
- SHA256 17877d2c03215f22bfb6cb7cd3a2b8d3cba1c17bf2f33f44163da90c67f56697
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.groupmt.vn
-
Port
587
-
Username
-
Password
4j37SF2n8e
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.groupmt.vn
-
Port
587
-
Username
-
Password
4j37SF2n8e
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 11 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.1680.5378.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.1680.5378.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
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\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.1680.5378.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NQoqVabRjxRXqg.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\NQoqVabRjxRXqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp690A.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.1680.5378.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.1680.5378.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.1680.5378.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.1680.5378.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_quj0p3g1.te5.ps1
tmp690A.tmp
memory/1508-0-0x000000007445E000-0x000000007445F000-memory.dmp
memory/1508-1-0x0000000000DB0000-0x0000000000EA2000-memory.dmp
memory/1508-6-0x0000000007EF0000-0x0000000007F0A000-memory.dmp
memory/1508-7-0x0000000006920000-0x0000000006928000-memory.dmp
memory/1508-8-0x0000000007930000-0x000000000793C000-memory.dmp
memory/1508-9-0x0000000007970000-0x00000000079F4000-memory.dmp
memory/1508-10-0x00000000069D0000-0x0000000006A6C000-memory.dmp
memory/1508-48-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/1508-4-0x0000000003270000-0x000000000327A000-memory.dmp
memory/1508-3-0x0000000007D40000-0x0000000007DD2000-memory.dmp
memory/1508-5-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/1508-2-0x0000000008250000-0x00000000087F4000-memory.dmp
memory/3148-74-0x0000000008180000-0x00000000087FA000-memory.dmp
memory/3148-90-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3148-24-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3148-75-0x0000000007B40000-0x0000000007B5A000-memory.dmp
memory/3148-80-0x0000000007D80000-0x0000000007D94000-memory.dmp
memory/3148-36-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3148-52-0x0000000074CC0000-0x0000000074D0C000-memory.dmp
memory/3148-79-0x0000000007D70000-0x0000000007D7E000-memory.dmp
memory/3148-81-0x0000000007E80000-0x0000000007E9A000-memory.dmp
memory/3148-82-0x0000000007E60000-0x0000000007E68000-memory.dmp
memory/3148-20-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3148-49-0x0000000006820000-0x000000000683E000-memory.dmp
memory/3148-50-0x00000000068E0000-0x000000000692C000-memory.dmp
memory/3148-51-0x0000000006E10000-0x0000000006E42000-memory.dmp
memory/3148-62-0x0000000006DB0000-0x0000000006DCE000-memory.dmp
memory/3148-63-0x0000000007820000-0x00000000078C3000-memory.dmp
memory/4084-37-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4084-83-0x0000000006730000-0x0000000006780000-memory.dmp
memory/5104-21-0x0000000005230000-0x0000000005252000-memory.dmp
memory/5104-64-0x0000000074CC0000-0x0000000074D0C000-memory.dmp
memory/5104-76-0x0000000007570000-0x000000000757A000-memory.dmp
memory/5104-77-0x0000000007770000-0x0000000007806000-memory.dmp
memory/5104-78-0x00000000076F0000-0x0000000007701000-memory.dmp
memory/5104-25-0x0000000005C10000-0x0000000005F64000-memory.dmp
memory/5104-32-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/5104-22-0x0000000005A80000-0x0000000005AE6000-memory.dmp
memory/5104-23-0x0000000005BA0000-0x0000000005C06000-memory.dmp
memory/5104-18-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/5104-86-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/5104-17-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/5104-16-0x00000000052A0000-0x00000000058C8000-memory.dmp
memory/5104-15-0x0000000004C20000-0x0000000004C56000-memory.dmp