Analysis
- max time kernel
108s - max time network
29s - platform
windows7_x64 - resource
win7v200722 - submitted
14/10/2020, 21:48
General
- Target H022020000006222.exe
- Size 671KB
- Sample201014-k3zsz9tycx
- SHA256 bae353be3d64c66c76ca33280e436b02460497265e503b772db81c2e84971cba
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
Company@12
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\H022020000006222.exe"C:\Users\Admin\AppData\Local\Temp\H022020000006222.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dgxZyxmLSN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA277.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1332-0-0x0000000074670000-0x0000000074D5E000-memory.dmp
memory/1332-1-0x0000000000880000-0x0000000000881000-memory.dmp
memory/1332-3-0x00000000001E0000-0x00000000001E4000-memory.dmp
memory/1332-4-0x0000000005050000-0x00000000050C5000-memory.dmp
memory/1332-5-0x0000000005150000-0x00000000051BE000-memory.dmp
memory/1932-8-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1932-10-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1932-11-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1932-12-0x0000000074670000-0x0000000074D5E000-memory.dmp