Analysis
- max time kernel
140s - max time network
137s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
25/01/2022, 14:19
General
- Target Shipment Document BL,INV and Packing List Attached.exe
- Size 883KB
- Sample220125-rmtywsghfr
- SHA256 613d9fd936ee8220f24dc0e435bba895782a722a2035482acc5bedb9c2e84f10
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
atruismint.com
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Port
587
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Username
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Password
Atruism@062
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 5 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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 4 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and Packing List Attached.exe"C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and Packing List Attached.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\qSizUnXLhJRH.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\qSizUnXLhJRH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCAFD.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and Packing List Attached.exe"C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and Packing List Attached.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and Packing List Attached.exe"C:\Users\Admin\AppData\Local\Temp\Shipment Document BL,INV and Packing List Attached.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1164-67-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1164-65-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1164-75-0x0000000001F11000-0x0000000001F12000-memory.dmp
memory/1164-66-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1164-70-0x0000000001F10000-0x0000000001F11000-memory.dmp
memory/1164-64-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1164-62-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1164-63-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1356-71-0x00000000023D0000-0x000000000301A000-memory.dmp
memory/1356-72-0x00000000023D0000-0x000000000301A000-memory.dmp
memory/1356-73-0x00000000023D0000-0x000000000301A000-memory.dmp
memory/1668-56-0x0000000001EE0000-0x0000000001EE1000-memory.dmp
memory/1668-55-0x0000000075AE1000-0x0000000075AE3000-memory.dmp
memory/1668-54-0x0000000000050000-0x0000000000134000-memory.dmp
memory/1668-59-0x0000000005520000-0x00000000055D6000-memory.dmp
memory/1668-58-0x000000007EF40000-0x000000007EF41000-memory.dmp
memory/1668-57-0x0000000001ED0000-0x0000000001EDE000-memory.dmp