Analysis
- max time kernel
145s - max time network
146s - platform
windows10_x64 - resource
win10v200722 - submitted
07/10/2020, 14:12
General
- Target REQUEST FOR QUOTATION 82213 -071020_pdf.0006.exe
- Size 587KB
- Sample201007-ayfvdaxfvj
- SHA256 649dc91d888b7981f2a39afb3d6810689fa7ea3b3d21f46274b0cc7f0c31ea2d
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.specialmetal.ir
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Port
587
-
Username
-
Password
02188985257
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- 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.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION 82213 -071020_pdf.0006.exe"C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION 82213 -071020_pdf.0006.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\UcWvusouW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4595.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION 82213 -071020_pdf.0006.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION 82213 -071020_pdf.0006.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3064-21-0x0000000006120000-0x0000000006121000-memory.dmp
memory/3064-20-0x0000000005600000-0x0000000005601000-memory.dmp
memory/3064-15-0x0000000073270000-0x000000007395E000-memory.dmp
memory/3064-12-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3952-5-0x0000000007800000-0x0000000007801000-memory.dmp
memory/3952-9-0x0000000005750000-0x0000000005751000-memory.dmp
memory/3952-8-0x0000000006470000-0x00000000064D6000-memory.dmp
memory/3952-7-0x0000000004D30000-0x0000000004D98000-memory.dmp
memory/3952-6-0x0000000007AA0000-0x0000000007AA4000-memory.dmp
memory/3952-0-0x0000000073270000-0x000000007395E000-memory.dmp
memory/3952-4-0x0000000007850000-0x0000000007851000-memory.dmp
memory/3952-3-0x0000000007CB0000-0x0000000007CB1000-memory.dmp
memory/3952-1-0x0000000000920000-0x0000000000921000-memory.dmp