Analysis
- max time kernel
131s - max time network
123s - platform
windows10_x64 - resource
win10v20210408 - submitted
24/08/2021, 06:43
General
- Target 9bae1987160cba224b05339dca041432.exe
- Size 661KB
- Sample210824-r5e5dhcae2
- SHA256 85ec9fb4bee90d873565b289a0165f8a543114e8f20b9725786fcb7900a36c4e
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot1987848583:AAHSwmprTFpvEybmL0ROJO4AawZ1x9yuNZs/sendDocument
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.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\9bae1987160cba224b05339dca041432.exe"C:\Users\Admin\AppData\Local\Temp\9bae1987160cba224b05339dca041432.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\aapiWDkLbuSmEq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2859.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\9bae1987160cba224b05339dca041432.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\9bae1987160cba224b05339dca041432.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/492-139-0x0000000004C11000-0x0000000004C12000-memory.dmp
memory/492-136-0x00000000059E0000-0x00000000059E1000-memory.dmp
memory/492-135-0x0000000004E90000-0x0000000004E91000-memory.dmp
memory/492-134-0x0000000004C10000-0x0000000004C11000-memory.dmp
memory/492-128-0x0000000000400000-0x000000000043C000-memory.dmp
memory/740-119-0x00000000050F0000-0x00000000050F1000-memory.dmp
memory/740-123-0x0000000006CC0000-0x0000000006D1B000-memory.dmp
memory/740-124-0x0000000008AF0000-0x0000000008B6F000-memory.dmp
memory/740-125-0x0000000006EC0000-0x0000000006EF9000-memory.dmp
memory/740-122-0x0000000008710000-0x0000000008711000-memory.dmp
memory/740-121-0x0000000008640000-0x0000000008642000-memory.dmp
memory/740-120-0x0000000005220000-0x0000000005221000-memory.dmp
memory/740-114-0x00000000008E0000-0x00000000008E1000-memory.dmp
memory/740-118-0x0000000005240000-0x0000000005241000-memory.dmp
memory/740-117-0x0000000005250000-0x0000000005251000-memory.dmp
memory/740-116-0x0000000005750000-0x0000000005751000-memory.dmp