Analysis
- max time kernel
146s - max time network
147s - platform
windows10_x64 - resource
win10 - submitted
16/10/2020, 13:56
General
- Target datasheet.exe
- Size 919KB
- Sample201016-16vxq7x73s
- SHA256 97a4e627e5182df35863f15f757d3de6f98fb7f3d94664a751df46a9d0b1eb8a
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
server126.web-hosting.com
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Port
587
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Username
-
Password
l*W.hJOqdB+*
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\datasheet.exe"C:\Users\Admin\AppData\Local\Temp\datasheet.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\wPDHbCTRmwIyW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE620.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\datasheet.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3812-21-0x0000000005BD0000-0x0000000005BD1000-memory.dmp
memory/3812-20-0x00000000052E0000-0x00000000052E1000-memory.dmp
memory/3812-15-0x0000000072EF0000-0x00000000735DE000-memory.dmp
memory/3812-12-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4036-5-0x0000000004F00000-0x0000000004F01000-memory.dmp
memory/4036-9-0x0000000008100000-0x000000000814B000-memory.dmp
memory/4036-8-0x0000000005AC0000-0x0000000005B0E000-memory.dmp
memory/4036-7-0x0000000004D70000-0x0000000004D74000-memory.dmp
memory/4036-6-0x0000000004D80000-0x0000000004D81000-memory.dmp
memory/4036-0-0x0000000072EF0000-0x00000000735DE000-memory.dmp
memory/4036-4-0x0000000004DB0000-0x0000000004DB1000-memory.dmp
memory/4036-3-0x0000000005400000-0x0000000005401000-memory.dmp
memory/4036-1-0x0000000000450000-0x0000000000451000-memory.dmp