Analysis
- max time kernel
121s - max time network
140s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
11/02/2022, 07:19
General
- Target RFQ10037800.pdf.exe
- Size 784KB
- Sample220211-h5jffaeabk
- SHA256 31149772b5eff1ebb9326af6a2ee4e4007dd6c6ad30bef239dc7bf50cd1d219f
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
us2.smtp.mailhostbox.com
-
Port
587
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Username
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Password
QuStYjFBc5
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- 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 3 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ10037800.pdf.exe"C:\Users\Admin\AppData\Local\Temp\RFQ10037800.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zPuibqhFLG.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zPuibqhFLG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE041.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\RFQ10037800.pdf.exe"C:\Users\Admin\AppData\Local\Temp\RFQ10037800.pdf.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/748-71-0x0000000002400000-0x0000000002401000-memory.dmp
memory/748-74-0x0000000002402000-0x0000000002404000-memory.dmp
memory/748-73-0x0000000002401000-0x0000000002402000-memory.dmp
memory/748-72-0x0000000073372000-0x0000000073374000-memory.dmp
memory/748-70-0x0000000073371000-0x0000000073372000-memory.dmp
memory/748-59-0x0000000076071000-0x0000000076073000-memory.dmp
memory/1236-62-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1236-68-0x0000000074CCE000-0x0000000074CCF000-memory.dmp
memory/1236-64-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1236-69-0x0000000000A20000-0x0000000000A21000-memory.dmp
memory/1236-65-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1236-66-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1236-67-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1236-63-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1888-54-0x0000000074CCE000-0x0000000074CCF000-memory.dmp
memory/1888-61-0x0000000000CB0000-0x0000000000CEC000-memory.dmp
memory/1888-58-0x0000000007980000-0x0000000007A3C000-memory.dmp
memory/1888-57-0x0000000000220000-0x000000000022E000-memory.dmp
memory/1888-56-0x00000000073C0000-0x00000000073C1000-memory.dmp
memory/1888-55-0x0000000000DA0000-0x0000000000E6A000-memory.dmp