Analysis
- max time kernel
144s - max time network
143s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:52
General
- Target Invoice 2743.exe
- Size 716KB
- Sample201109-jrrwe7kvaa
- SHA256 ba19f152a61cf84f2a2f1d5bb1f7dc7861a8c234bb358bd5bb7d2cceb4523fc9
Malware Config
Extracted
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Protocol
smtp
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Host
mail.almushrefcoop.com
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Port
587
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Username
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Password
zainab123
Extracted
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agenttesla
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Protocol
smtp
-
Host
mail.almushrefcoop.com
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Port
587
-
Username
-
Password
zainab123
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- 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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice 2743.exe"C:\Users\Admin\AppData\Local\Temp\Invoice 2743.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\frkBgKDQoC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2C7F.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Invoice 2743.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\Invoice 2743.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/412-9-0x0000000005D10000-0x0000000005D63000-memory.dmp
memory/412-4-0x0000000005670000-0x0000000005671000-memory.dmp
memory/412-5-0x0000000005270000-0x0000000005271000-memory.dmp
memory/412-6-0x0000000002AF0000-0x0000000002AF1000-memory.dmp
memory/412-7-0x0000000005660000-0x0000000005662000-memory.dmp
memory/412-8-0x0000000005B70000-0x0000000005B71000-memory.dmp
memory/412-0-0x0000000073AD0000-0x00000000741BE000-memory.dmp
memory/412-1-0x00000000004D0000-0x00000000004D1000-memory.dmp
memory/412-3-0x0000000002A40000-0x0000000002AA0000-memory.dmp
memory/592-12-0x0000000000400000-0x0000000000452000-memory.dmp
memory/592-15-0x0000000073AD0000-0x00000000741BE000-memory.dmp
memory/592-20-0x00000000054C0000-0x00000000054C1000-memory.dmp
memory/592-21-0x0000000006120000-0x0000000006121000-memory.dmp