Analysis
- max time kernel
133s - max time network
126s - platform
windows10_x64 - resource
win10-en-20211014 - submitted
15/10/2021, 12:29
General
- Target Foreign_Bank Account Details.exe
- Size 840KB
- Sample211015-pnxeasbfck
- SHA256 ffbd9f2074b2eaa45f8562aa8cef8e7e71e8302789e4c6e199b2e15b67adc3c4
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 3 IoCs
- Drops file in Drivers directory 1 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 3 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
- outlook_office_path 1 IoCs
- outlook_win_path 1 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\GVKfwsKVHDCC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6F11.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1012-136-0x0000000005ED0000-0x0000000005ED1000-memory.dmp
memory/1012-135-0x0000000005300000-0x0000000005301000-memory.dmp
memory/1012-134-0x0000000005170000-0x000000000566E000-memory.dmp
memory/1012-128-0x0000000000400000-0x0000000000470000-memory.dmp
memory/2632-120-0x0000000005A20000-0x0000000005F1E000-memory.dmp
memory/2632-124-0x000000000A580000-0x000000000A600000-memory.dmp
memory/2632-125-0x000000000A600000-0x000000000A66D000-memory.dmp
memory/2632-123-0x0000000003250000-0x000000000325E000-memory.dmp
memory/2632-122-0x0000000005B60000-0x0000000005B61000-memory.dmp
memory/2632-121-0x0000000005A20000-0x0000000005A21000-memory.dmp
memory/2632-115-0x0000000000F50000-0x0000000000F51000-memory.dmp
memory/2632-119-0x0000000005AC0000-0x0000000005AC1000-memory.dmp
memory/2632-118-0x0000000005F20000-0x0000000005F21000-memory.dmp
memory/2632-117-0x0000000005980000-0x0000000005981000-memory.dmp