Analysis
- max time kernel
147s - max time network
151s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
29/09/2021, 07:48
General
- Target Foreign_Bank Account Details.exe
- Size 1.1MB
- Sample210929-jm5rdsecej
- SHA256 116d3acdcd11c7f527ba7f78f00eecdc470ccde2f0e2dfac43494ba3f04e6dc5
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
webmail.mdist.us
-
Port
587
-
Username
-
Password
Jg#4321
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 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 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Foreign_Bank Account Details.exe"C:\Users\Admin\AppData\Local\Temp\Foreign_Bank Account Details.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\raGyVQDGZDF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp23F4.tmp"2⤵
- Creates scheduled task(s)
-
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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/2348-136-0x0000000006180000-0x0000000006181000-memory.dmp
memory/2348-135-0x0000000005AF0000-0x0000000005AF1000-memory.dmp
memory/2348-134-0x0000000005500000-0x0000000005501000-memory.dmp
memory/2348-128-0x0000000000400000-0x0000000000470000-memory.dmp
memory/2396-120-0x00000000051D0000-0x00000000051D1000-memory.dmp
memory/2396-124-0x0000000007C50000-0x0000000007CE1000-memory.dmp
memory/2396-125-0x0000000007CF0000-0x0000000007D5D000-memory.dmp
memory/2396-123-0x0000000001240000-0x000000000124E000-memory.dmp
memory/2396-122-0x00000000052F0000-0x00000000057EE000-memory.dmp
memory/2396-121-0x0000000005520000-0x0000000005521000-memory.dmp
memory/2396-115-0x0000000000890000-0x0000000000891000-memory.dmp
memory/2396-119-0x00000000052F0000-0x00000000052F1000-memory.dmp
memory/2396-118-0x00000000057F0000-0x00000000057F1000-memory.dmp
memory/2396-117-0x0000000005250000-0x0000000005251000-memory.dmp