Analysis
- max time kernel
100s - max time network
112s - platform
windows10_x64 - resource
win10v20210408 - submitted
30/04/2021, 08:00
General
- Target c37d480d603a248b0e230a1c15590266.exe
- Size 2.3MB
- Sample210430-dbz8l8mrha
- SHA256 c4ee3e5cecf3510d88b59f4122e88f50dc99a761338dd1f8fc3eff6bfed2e005
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.newmedinternational.com
-
Port
587
-
Username
-
Password
vidura@123
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 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.
- Suspicious use of NtSetInformationThreadHideFromDebugger 12 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\c37d480d603a248b0e230a1c15590266.exe"C:\Users\Admin\AppData\Local\Temp\c37d480d603a248b0e230a1c15590266.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout 12⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout 13⤵
- Delays execution with timeout.exe
-
-
-
C:\Users\Admin\AppData\Local\Temp\c37d480d603a248b0e230a1c15590266.exe"C:\Users\Admin\AppData\Local\Temp\c37d480d603a248b0e230a1c15590266.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1040-121-0x0000000005E10000-0x0000000005E11000-memory.dmp
memory/1040-114-0x0000000000250000-0x0000000000251000-memory.dmp
memory/1040-117-0x00000000046E0000-0x0000000004734000-memory.dmp
memory/1040-118-0x0000000005000000-0x0000000005001000-memory.dmp
memory/1040-116-0x0000000004C70000-0x0000000004C71000-memory.dmp
memory/3880-129-0x0000000005470000-0x0000000005471000-memory.dmp
memory/3880-128-0x00000000052B0000-0x00000000057AE000-memory.dmp
memory/3880-122-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3880-130-0x0000000005F10000-0x0000000005F11000-memory.dmp
memory/3880-131-0x00000000062F0000-0x00000000062F1000-memory.dmp
memory/3880-132-0x0000000001180000-0x0000000001181000-memory.dmp
memory/3880-133-0x00000000052B0000-0x00000000057AE000-memory.dmp