Analysis
- max time kernel
298s - max time network
277s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
04/05/2026, 09:24
General
- Target msedge_elf.dll
- Size 1.6MB
- Sample260504-lc2yvsft61
- SHA256 74b74a44654abaa50f6934f63c28638d38891bedd5a349b4baf8ac8602ce6f0e
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.onionmail.org
-
Port
587
-
Username
-
Password
sendboxorigin12
-
Email to
Signatures
- Family: AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\msedge_elf.dll,#11⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\schtasks.exe"schtasks.exe" /Create /SC ONLOGON /TN RasManagement /TR "C:\Windows\system32\rundll32.exe" /RU "" /RL HIGHEST /F2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\rundll32.exeC:\Windows\system32\rundll32.exe1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/3388-0-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3388-1-0x0000000005B70000-0x0000000006114000-memory.dmp
memory/3388-2-0x00000000055B0000-0x00000000055C0000-memory.dmp
memory/3388-3-0x0000000005630000-0x0000000005696000-memory.dmp
memory/3388-4-0x0000000006B80000-0x0000000006C12000-memory.dmp
memory/3388-5-0x0000000006C20000-0x0000000006C70000-memory.dmp
memory/3388-6-0x0000000006D10000-0x0000000006DAC000-memory.dmp
memory/3388-8-0x00000000055B0000-0x00000000055C0000-memory.dmp
memory/3388-7-0x00000000052A0000-0x0000000005383000-memory.dmp
memory/3388-10-0x0000000006DB0000-0x0000000006DBA000-memory.dmp
memory/3388-11-0x00000000052A0000-0x0000000005383000-memory.dmp