Analysis
- max time kernel
143s - max time network
19s - platform
windows7_x64 - resource
win7v20210408 - submitted
01/05/2021, 06:15
General
- Target NINGBO_STATEMENT OF ACCOUNT.exe
- Size 1.2MB
- Sample210501-bty5m2anc2
- SHA256 c0cf5409e5ac8c83b073bf5faa60cc2104bb5792f57e9cbf061fe111e7cf1d5a
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
webmail.mdist.us
-
Port
587
-
Username
-
Password
pos#4321
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- Drops file in Drivers directory 1 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\NINGBO_STATEMENT OF ACCOUNT.exe"C:\Users\Admin\AppData\Local\Temp\NINGBO_STATEMENT OF ACCOUNT.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\npXDrUdq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4A97.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1604-67-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1604-69-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1604-71-0x0000000004950000-0x0000000004951000-memory.dmp
memory/1604-72-0x0000000004951000-0x0000000004952000-memory.dmp
memory/1848-59-0x0000000001130000-0x0000000001131000-memory.dmp
memory/1848-61-0x0000000004E20000-0x0000000004E21000-memory.dmp
memory/1848-62-0x00000000003A0000-0x00000000003AE000-memory.dmp
memory/1848-63-0x0000000007F10000-0x0000000007FA8000-memory.dmp
memory/1848-64-0x0000000000BA0000-0x0000000000BF2000-memory.dmp