Analysis
- max time kernel
132s - max time network
113s - platform
windows10_x64 - resource
win10v20210410 - submitted
09/08/2021, 05:10
General
- Target Bukti_Transfer.exe
- Size 883KB
- Sample210809-7jcxr2evts
- SHA256 036ba0b39a6d274f8472b05c0eb23900bb0ca9aafa0e90481ff58169ba0f1d30
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.gmail.com
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Port
587
-
Username
-
Password
tdodsbkaaxkycrdl
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 3 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\Bukti_Transfer.exe"C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer.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\wwdIZcQqSA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB348.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer.exe"C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer.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/1692-138-0x0000000004EA0000-0x000000000539E000-memory.dmp
memory/1692-135-0x0000000005B90000-0x0000000005B91000-memory.dmp
memory/1692-134-0x0000000004FF0000-0x0000000004FF1000-memory.dmp
memory/1692-133-0x0000000004EA0000-0x000000000539E000-memory.dmp
memory/1692-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3908-119-0x0000000004CA0000-0x0000000004CA1000-memory.dmp
memory/3908-124-0x0000000009A70000-0x0000000009AA8000-memory.dmp
memory/3908-123-0x0000000007340000-0x00000000073D9000-memory.dmp
memory/3908-122-0x0000000006650000-0x0000000006651000-memory.dmp
memory/3908-121-0x0000000004FF0000-0x0000000005003000-memory.dmp
memory/3908-120-0x0000000004B50000-0x000000000504E000-memory.dmp
memory/3908-114-0x0000000000180000-0x0000000000181000-memory.dmp
memory/3908-118-0x0000000004BF0000-0x0000000004BF1000-memory.dmp
memory/3908-117-0x0000000004B50000-0x0000000004B51000-memory.dmp
memory/3908-116-0x0000000005050000-0x0000000005051000-memory.dmp