Analysis
- max time kernel
149s - max time network
72s - platform
windows10_x64 - resource
win10v20210408 - submitted
22/06/2021, 15:23
General
- Target 018c822e08bf5da34aab3a73a614f3f5.exe
- Size 1.2MB
- Sample210622-kk82ea9lv6
- SHA256 03e797d9d53541df85281fa1cea248e9fa2bf9d47a6db87afc02c68142eff52f
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.withinconstruction.com
-
Port
587
-
Username
-
Password
Qazwsx@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 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\018c822e08bf5da34aab3a73a614f3f5.exe"C:\Users\Admin\AppData\Local\Temp\018c822e08bf5da34aab3a73a614f3f5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aATCKcVV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3BC2.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\018c822e08bf5da34aab3a73a614f3f5.exe"C:\Users\Admin\AppData\Local\Temp\018c822e08bf5da34aab3a73a614f3f5.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/672-123-0x0000000005FE0000-0x000000000606B000-memory.dmp
memory/672-117-0x0000000005550000-0x0000000005551000-memory.dmp
memory/672-119-0x0000000004F90000-0x0000000004F91000-memory.dmp
memory/672-121-0x0000000005280000-0x0000000005281000-memory.dmp
memory/672-120-0x0000000005050000-0x000000000554E000-memory.dmp
memory/672-122-0x00000000050D0000-0x00000000050E0000-memory.dmp
memory/672-114-0x0000000000650000-0x0000000000651000-memory.dmp
memory/672-124-0x0000000008570000-0x00000000085D8000-memory.dmp
memory/672-116-0x0000000004FA0000-0x0000000004FA1000-memory.dmp
memory/672-118-0x00000000050F0000-0x00000000050F1000-memory.dmp
memory/1184-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1184-134-0x00000000055E0000-0x0000000005ADE000-memory.dmp
memory/1184-135-0x0000000005AA0000-0x0000000005AA1000-memory.dmp
memory/1184-136-0x0000000006340000-0x0000000006341000-memory.dmp
memory/1184-139-0x00000000055E0000-0x0000000005ADE000-memory.dmp