Analysis
- max time kernel
146s - max time network
145s - platform
windows10_x64 - resource
win10v20201028 - submitted
15/12/2020, 16:33
General
- Target SOA.exe
- Size 734KB
- Sample201215-n2aq59wr7e
- SHA256 b3eb9d09d5bbdcbc7ce33fcf3863d74277d7ed3a229bb44da6baaa62b8595397
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.chestronic.com
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Port
587
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Username
-
Password
8$@oJ?OGP~ge
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 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). 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SOA.exe"C:\Users\Admin\AppData\Local\Temp\SOA.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\tIbmxLnC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B97.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
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/972-11-0x0000000005270000-0x0000000005312000-memory.dmp
memory/972-3-0x00000000007C0000-0x00000000007C1000-memory.dmp
memory/972-6-0x000000000ADA0000-0x000000000ADA1000-memory.dmp
memory/972-7-0x000000000AA80000-0x000000000AA81000-memory.dmp
memory/972-8-0x000000000AA30000-0x000000000AA31000-memory.dmp
memory/972-9-0x000000000D380000-0x000000000D381000-memory.dmp
memory/972-5-0x00000000075F0000-0x0000000007693000-memory.dmp
memory/972-10-0x000000000CE50000-0x000000000CE5E000-memory.dmp
memory/972-12-0x00000000053D0000-0x00000000053D1000-memory.dmp
memory/972-2-0x0000000073A30000-0x000000007411E000-memory.dmp
memory/2124-17-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2124-19-0x0000000073A30000-0x000000007411E000-memory.dmp
memory/2124-24-0x0000000005190000-0x0000000005191000-memory.dmp
memory/2124-25-0x0000000005B80000-0x0000000005B81000-memory.dmp