Analysis
- max time kernel
126s - max time network
60s - platform
windows7_x64 - resource
win7v20210408 - submitted
14/05/2021, 05:38
General
- Target TT (Ref 0765648475).exe
- Size 1.8MB
- Sample210514-73fg6flm72
- SHA256 856c3abba6de3f00378613cc67649350a6e9b1867d8f2edede21e5b73d4da01e
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
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Username
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Password
babafresh@2125
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\TT (Ref 0765648475).exe"C:\Users\Admin\AppData\Local\Temp\TT (Ref 0765648475).exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qblfRlgNUgU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA988.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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/748-68-0x0000000000400000-0x000000000043C000-memory.dmp
memory/748-70-0x0000000000400000-0x000000000043C000-memory.dmp
memory/748-72-0x0000000004BD0000-0x0000000004BD1000-memory.dmp
memory/1696-60-0x0000000000B40000-0x0000000000B41000-memory.dmp
memory/1696-62-0x0000000000490000-0x0000000000491000-memory.dmp
memory/1696-63-0x0000000000280000-0x0000000000284000-memory.dmp
memory/1696-64-0x0000000005200000-0x0000000005279000-memory.dmp
memory/1696-65-0x0000000002110000-0x000000000214F000-memory.dmp