Analysis
- max time kernel
144s - max time network
120s - platform
windows10_x64 - resource
win10v20210408 - submitted
26/07/2021, 14:23
General
- Target 82658.exe
- Size 1.3MB
- Sample210726-adbpr9g446
- SHA256 8866780810cd65684ba4c903d896da0760dfb0b85f2b9965d9d60bbfc60c94f6
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.badonfashoin.com/
-
Port
21
-
Username
-
Password
kKsIA9XNV2zG
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
- 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.
- Adds Run key to start application 2 TTPs 1 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.
- 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 behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\82658.exe"C:\Users\Admin\AppData\Local\Temp\82658.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\qqZyFYm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B33.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\82658.exe"C:\Users\Admin\AppData\Local\Temp\82658.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/364-123-0x0000000007F30000-0x0000000007FB1000-memory.dmp
memory/364-117-0x0000000005D20000-0x0000000005D21000-memory.dmp
memory/364-119-0x00000000056B0000-0x00000000056B1000-memory.dmp
memory/364-120-0x00000000059E0000-0x00000000059E1000-memory.dmp
memory/364-121-0x0000000005720000-0x0000000005721000-memory.dmp
memory/364-122-0x0000000005A80000-0x0000000005A8B000-memory.dmp
memory/364-114-0x0000000000D60000-0x0000000000D61000-memory.dmp
memory/364-124-0x0000000007FC0000-0x0000000007FFD000-memory.dmp
memory/364-116-0x0000000005780000-0x0000000005781000-memory.dmp
memory/364-118-0x0000000005820000-0x0000000005821000-memory.dmp
memory/412-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/412-134-0x00000000055A0000-0x00000000055A1000-memory.dmp
memory/412-135-0x0000000005A80000-0x0000000005A81000-memory.dmp
memory/412-136-0x0000000006240000-0x0000000006241000-memory.dmp
memory/412-139-0x00000000055A1000-0x00000000055A2000-memory.dmp