Analysis
- max time kernel
127s - max time network
116s - platform
windows10_x64 - resource
win10v200722 - submitted
10/08/2020, 11:51
General
- Target Purchase Inquiry Datasheet Of Listed Items.exe
- Size 786KB
- Sample200810-gharxw78hs
- SHA256 a52c72aa195562b2f469e6dbc1e2e7534aec440d4674cedb788f3800286ecbbf
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
server122.web-hosting.com
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Port
587
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Username
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Password
OJZg,yx3yFHQ
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.
- 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 4 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\Purchase Inquiry Datasheet Of Listed Items.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry Datasheet Of Listed Items.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\uyIbAslkFaYVOs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8042.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry Datasheet Of Listed Items.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry Datasheet Of Listed Items.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry Datasheet Of Listed Items.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry Datasheet Of Listed Items.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1000-22-0x0000000006130000-0x0000000006131000-memory.dmp
memory/1000-21-0x00000000055A0000-0x00000000055A1000-memory.dmp
memory/1000-16-0x0000000073E20000-0x000000007450E000-memory.dmp
memory/1000-13-0x0000000000400000-0x000000000045A000-memory.dmp
memory/3816-5-0x0000000005250000-0x0000000005251000-memory.dmp
memory/3816-10-0x0000000006010000-0x0000000006066000-memory.dmp
memory/3816-9-0x0000000005FA0000-0x000000000600C000-memory.dmp
memory/3816-8-0x0000000005240000-0x000000000524B000-memory.dmp
memory/3816-7-0x00000000053B0000-0x00000000053B1000-memory.dmp
memory/3816-6-0x00000000050D0000-0x00000000050D1000-memory.dmp
memory/3816-0-0x0000000073E20000-0x000000007450E000-memory.dmp
memory/3816-4-0x00000000056B0000-0x00000000056B1000-memory.dmp
memory/3816-3-0x0000000005110000-0x0000000005111000-memory.dmp
memory/3816-1-0x0000000000800000-0x0000000000801000-memory.dmp