Analysis
- max time kernel
147s - max time network
27s - platform
windows7_x64 - resource
win7v200722 - submitted
28/07/2020, 14:07
General
- Target q3myYW9NF05iAGK.exe
- Size 550KB
- Sample200728-lesd1c38z2
- SHA256 37150bacbcc388ea4dec116a1c1d22ae9b937a7495e2974228eb4814d2db6348
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://asnbanknl.com/
-
Port
21
-
Username
smartpips
-
Password
3mPf4$l2
-
Protocol
ftp
-
Host
ftp://asnbanknl.com/
-
Port
21
-
Username
smartpips
-
Password
3mPf4$l2
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 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\q3myYW9NF05iAGK.exe"C:\Users\Admin\AppData\Local\Temp\q3myYW9NF05iAGK.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\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5ACC.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\q3myYW9NF05iAGK.exe"{path}"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/1828-4-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1828-6-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1828-7-0x0000000000400000-0x000000000044C000-memory.dmp