Analysis
- max time kernel
60s - max time network
122s - platform
windows7_x64 - resource
win7-20220414-en - submitted
15/04/2022, 11:13
General
- Target 05ac1021e73f9b5375fdb6f124b11c49.exe
- Size 796KB
- Sample220415-nbd7hsghen
- SHA256 5e1e2ce82b5fbcf65e9b5253453f4288dc8510fb30451f7f06258d7753bee9b0
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
xCVTAJh7
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
xCVTAJh7
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\05ac1021e73f9b5375fdb6f124b11c49.exe"C:\Users\Admin\AppData\Local\Temp\05ac1021e73f9b5375fdb6f124b11c49.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UpSaPxecx.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UpSaPxecx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBF6A.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\05ac1021e73f9b5375fdb6f124b11c49.exe"C:\Users\Admin\AppData\Local\Temp\05ac1021e73f9b5375fdb6f124b11c49.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmpBF6A.tmp
memory/468-68-0x0000000000400000-0x0000000000462000-memory.dmp
memory/468-71-0x0000000000400000-0x0000000000462000-memory.dmp
memory/468-73-0x0000000000400000-0x0000000000462000-memory.dmp
memory/468-67-0x0000000000400000-0x0000000000462000-memory.dmp
memory/468-63-0x0000000000400000-0x0000000000462000-memory.dmp
memory/468-65-0x0000000000400000-0x0000000000462000-memory.dmp
memory/468-62-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1820-59-0x0000000075841000-0x0000000075843000-memory.dmp
memory/1820-74-0x000000006EAD0000-0x000000006F07B000-memory.dmp
memory/1820-75-0x00000000024F0000-0x000000000313A000-memory.dmp
memory/1996-56-0x0000000007D00000-0x0000000007DC2000-memory.dmp
memory/1996-61-0x0000000008180000-0x0000000008224000-memory.dmp
memory/1996-55-0x0000000000600000-0x000000000060A000-memory.dmp
memory/1996-54-0x0000000000CA0000-0x0000000000D6C000-memory.dmp