Analysis
- max time kernel
95s - max time network
112s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:33
General
- Target Payment Swift Copy.pdf.exe
- Size 861KB
- Sample201109-enz1ahk8js
- SHA256 c57e0fc02e939ef6d9f2e1d92cd74d6ed7df502a1c2ded6e8ae68f6bc5ff3aec
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.guddupak.com
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Port
587
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Username
-
Password
imzafar75
Extracted
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agenttesla
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Protocol
smtp
-
Host
mail.guddupak.com
-
Port
587
-
Username
-
Password
imzafar75
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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Payment Swift Copy.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Payment Swift Copy.pdf.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\HKzpOtAFjdm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBDC8.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Payment Swift Copy.pdf.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/528-19-0x0000000006280000-0x0000000006281000-memory.dmp
memory/528-18-0x00000000056B0000-0x00000000056B1000-memory.dmp
memory/528-13-0x0000000073A20000-0x000000007410E000-memory.dmp
memory/528-11-0x0000000000400000-0x0000000000452000-memory.dmp
memory/3888-8-0x0000000009F60000-0x0000000009F61000-memory.dmp
memory/3888-0-0x0000000073A20000-0x000000007410E000-memory.dmp
memory/3888-7-0x0000000004FD0000-0x0000000005023000-memory.dmp
memory/3888-6-0x0000000005680000-0x0000000005682000-memory.dmp
memory/3888-5-0x0000000007F60000-0x0000000007F61000-memory.dmp
memory/3888-4-0x0000000007F70000-0x0000000007F71000-memory.dmp
memory/3888-3-0x00000000083C0000-0x00000000083C1000-memory.dmp
memory/3888-1-0x0000000000BB0000-0x0000000000BB1000-memory.dmp