Analysis
- max time kernel
148s - max time network
160s - platform
windows7_x64 - resource
win7v20210408 - submitted
24/05/2021, 15:49
General
- Target yFtb50HV0L2TX35.exe
- Size 1001KB
- Sample210524-nn3sr2eagj
- SHA256 2a31ce352dedfe83426a33aea06b929ca39d4563434113c0ac4e2d7c1a6eaa0f
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.nabasaa.com
-
Port
587
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Username
-
Password
!#aWMOS3
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 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 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\yFtb50HV0L2TX35.exe"C:\Users\Admin\AppData\Local\Temp\yFtb50HV0L2TX35.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\FpOREerJFx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC284.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\yFtb50HV0L2TX35.exe"C:\Users\Admin\AppData\Local\Temp\yFtb50HV0L2TX35.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1384-68-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1384-70-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1384-72-0x0000000004AF0000-0x0000000004AF1000-memory.dmp
memory/1832-60-0x0000000000210000-0x0000000000211000-memory.dmp
memory/1832-62-0x0000000004330000-0x0000000004331000-memory.dmp
memory/1832-63-0x0000000000580000-0x0000000000585000-memory.dmp
memory/1832-64-0x0000000005080000-0x0000000005125000-memory.dmp
memory/1832-65-0x0000000004850000-0x00000000048BF000-memory.dmp