Analysis
- max time kernel
143s - max time network
144s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 19:53
General
- Target PAYMENT SWIFT COPY PRINTOUT.exe
- Size 717KB
- Sample201109-qrplvcfkte
- SHA256 868f1b45e31dafa602f728c0f508293c4cae79b013e3e36edbe8d81c33a5bbe3
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.mondastudio.com
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Port
587
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Username
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Password
Nigels1975!
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY PRINTOUT.exe"C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY PRINTOUT.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\KazslkKDcZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9B1D.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY PRINTOUT.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY PRINTOUT.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/648-11-0x0000000009A50000-0x0000000009A51000-memory.dmp
memory/648-1-0x00000000009C0000-0x00000000009C1000-memory.dmp
memory/648-5-0x0000000005480000-0x0000000005481000-memory.dmp
memory/648-8-0x00000000053C0000-0x00000000053C1000-memory.dmp
memory/648-9-0x0000000006230000-0x0000000006232000-memory.dmp
memory/648-10-0x0000000009950000-0x00000000099A3000-memory.dmp
memory/648-0-0x0000000073F80000-0x000000007466E000-memory.dmp
memory/648-4-0x0000000009C60000-0x0000000009C61000-memory.dmp
memory/648-3-0x0000000005330000-0x000000000538E000-memory.dmp
memory/4016-14-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4016-17-0x0000000073F80000-0x000000007466E000-memory.dmp
memory/4016-22-0x00000000056C0000-0x00000000056C1000-memory.dmp
memory/4016-23-0x0000000006170000-0x0000000006171000-memory.dmp