Analysis
- max time kernel
93s - max time network
111s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:34
General
- Target DHL_3036875844.exe
- Size 713KB
- Sample201109-eph66dygaj
- SHA256 edea1ac8e2a910787a857619443892d76fa2be66eace036c5725c9fbccec511a
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.marketinfosales.com
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Port
587
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Username
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Password
8})FotiAEI+U
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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\DHL_3036875844.exe"C:\Users\Admin\AppData\Local\Temp\DHL_3036875844.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\ZzcpesRQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB57B.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\DHL_3036875844.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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/1116-20-0x0000000005C00000-0x0000000005C01000-memory.dmp
memory/1116-19-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
memory/1116-14-0x00000000733A0000-0x0000000073A8E000-memory.dmp
memory/1116-12-0x0000000000400000-0x0000000000452000-memory.dmp
memory/3008-5-0x0000000007080000-0x0000000007081000-memory.dmp
memory/3008-9-0x0000000007D30000-0x0000000007D83000-memory.dmp
memory/3008-8-0x0000000007070000-0x0000000007072000-memory.dmp
memory/3008-7-0x00000000072C0000-0x00000000072C1000-memory.dmp
memory/3008-6-0x0000000007060000-0x0000000007061000-memory.dmp
memory/3008-0-0x00000000733A0000-0x0000000073A8E000-memory.dmp
memory/3008-4-0x00000000074E0000-0x00000000074E1000-memory.dmp
memory/3008-3-0x0000000004CD0000-0x0000000004D77000-memory.dmp
memory/3008-1-0x00000000001E0000-0x00000000001E1000-memory.dmp