Analysis
- max time kernel
179s - max time network
187s - platform
windows10-2004_x64 - resource
win10v2004-20220331-en - submitted
13/04/2022, 19:23
General
- Target TeY.exe
- Size 892KB
- Sample220413-x3scwsfchm
- SHA256 1ddb92cc0e9a6532ea09e16faa170fc14247677b8127b46a495c28f02ed922b0
Malware Config
Extracted
-
agenttesla
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https://api.telegram.org/bot5160342877:AAG7aI_cOY3UzpErIEUdfVUJMJszvGYLIiI/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 1 IoCs
- Drops file in Drivers directory 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\TeY.exe"C:\Users\Admin\AppData\Local\Temp\TeY.exe"1⤵
- Checks computer location settings
- 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\Roaming\XDezJGqbcG.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XDezJGqbcG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB6EC.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⤵
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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⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmpB6EC.tmp
memory/212-145-0x0000000007740000-0x0000000007DBA000-memory.dmp
memory/212-148-0x0000000007380000-0x0000000007416000-memory.dmp
memory/212-151-0x0000000004BC0000-0x0000000004BC8000-memory.dmp
memory/212-150-0x0000000007460000-0x000000000747A000-memory.dmp
memory/212-139-0x0000000005700000-0x0000000005766000-memory.dmp
memory/212-149-0x0000000004B60000-0x0000000004B6E000-memory.dmp
memory/212-132-0x0000000002500000-0x0000000002536000-memory.dmp
memory/212-138-0x00000000055A0000-0x00000000055C2000-memory.dmp
memory/212-134-0x0000000004F70000-0x0000000005598000-memory.dmp
memory/212-147-0x0000000007170000-0x000000000717A000-memory.dmp
memory/212-146-0x0000000007100000-0x000000000711A000-memory.dmp
memory/212-144-0x00000000025A5000-0x00000000025A7000-memory.dmp
memory/212-143-0x0000000006390000-0x00000000063AE000-memory.dmp
memory/212-142-0x0000000070200000-0x000000007024C000-memory.dmp
memory/212-140-0x0000000005E00000-0x0000000005E1E000-memory.dmp
memory/212-141-0x00000000063C0000-0x00000000063F2000-memory.dmp
memory/1704-137-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1704-152-0x0000000001360000-0x00000000013B0000-memory.dmp
memory/2472-129-0x0000000009430000-0x0000000009496000-memory.dmp
memory/2472-126-0x0000000005870000-0x0000000005902000-memory.dmp
memory/2472-124-0x0000000000E90000-0x0000000000F76000-memory.dmp
memory/2472-125-0x0000000005E20000-0x00000000063C4000-memory.dmp
memory/2472-128-0x00000000057E0000-0x00000000057EA000-memory.dmp
memory/2472-127-0x0000000005910000-0x00000000059AC000-memory.dmp