Analysis
- max time kernel
125s - max time network
113s - platform
windows10_x64 - resource
win10v20210410 - submitted
26/07/2021, 06:54
General
- Target copy of declaration certificate�& Tan lette.exe.gz.exe
- Size 1.6MB
- Sample210726-9tya418pj6
- SHA256 13d90261f73ecaa7455ccdaf16de6d96b122e8829cbf0ffe84ab89fc2cf4cad2
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
server291.web-hosting.com
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Port
587
-
Username
-
Password
riches22@123456
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- 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 use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\copy of declaration certificate�& Tan lette.exe.gz.exe"C:\Users\Admin\AppData\Local\Temp\copy of declaration certificate�& Tan lette.exe.gz.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Ouvuudly" /XML "C:\Users\Admin\AppData\Local\Temp\tmp53FD.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1016-135-0x0000000005F00000-0x0000000005F01000-memory.dmp
memory/1016-134-0x0000000005630000-0x0000000005631000-memory.dmp
memory/1016-133-0x0000000005210000-0x000000000570E000-memory.dmp
memory/1016-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3424-119-0x0000000004A40000-0x0000000004A41000-memory.dmp
memory/3424-123-0x0000000006620000-0x0000000006692000-memory.dmp
memory/3424-124-0x0000000004F40000-0x0000000004F79000-memory.dmp
memory/3424-122-0x00000000044C0000-0x00000000044ED000-memory.dmp
memory/3424-121-0x0000000004990000-0x0000000004A2C000-memory.dmp
memory/3424-120-0x0000000004CF0000-0x0000000004CF1000-memory.dmp
memory/3424-114-0x0000000000090000-0x0000000000091000-memory.dmp
memory/3424-118-0x0000000004B20000-0x0000000004B21000-memory.dmp
memory/3424-117-0x0000000005020000-0x0000000005021000-memory.dmp
memory/3424-116-0x0000000004A80000-0x0000000004A81000-memory.dmp