Analysis
- max time kernel
150s - max time network
124s - platform
windows10_x64 - resource
win10v20210408 - 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
-
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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 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
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FpOREerJFx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp173.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\yFtb50HV0L2TX35.exe"C:\Users\Admin\AppData\Local\Temp\yFtb50HV0L2TX35.exe"2⤵
-
-
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
Loading Replay Monitor...
Downloads
memory/3260-123-0x0000000007CF0000-0x0000000007D5F000-memory.dmp
memory/3260-117-0x0000000004AB0000-0x0000000004AB1000-memory.dmp
memory/3260-119-0x0000000004A40000-0x0000000004A41000-memory.dmp
memory/3260-120-0x0000000004A00000-0x0000000004A92000-memory.dmp
memory/3260-121-0x0000000004A50000-0x0000000004A55000-memory.dmp
memory/3260-122-0x0000000005790000-0x0000000005835000-memory.dmp
memory/3260-114-0x0000000000120000-0x0000000000121000-memory.dmp
memory/3260-118-0x0000000004B50000-0x0000000004B51000-memory.dmp
memory/3260-116-0x0000000004FB0000-0x0000000004FB1000-memory.dmp
memory/3540-126-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3540-132-0x00000000050C0000-0x00000000055BE000-memory.dmp
memory/3540-133-0x0000000005200000-0x0000000005201000-memory.dmp
memory/3540-134-0x0000000005DB0000-0x0000000005DB1000-memory.dmp