Analysis
- max time kernel
79s - max time network
53s - platform
windows7_x64 - resource
win7-20220901-en - resource tags
- submitted
26/11/2022, 14:30
General
- Target SecuriteInfo.com.MSIL.GenKryptik.FYGA.tr.13096.12566.exe
- Size 985KB
- Sample221126-rt6ahaaf77
- SHA256 79fe46d2be00c4f28ed865d1fec837d8d34d16fdaf74b901d05018dc03e67686
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.strictfacilityservices.com
-
Port
587
-
Username
-
Password
SFS!@#321
-
Email to
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
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.GenKryptik.FYGA.tr.13096.12566.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.GenKryptik.FYGA.tr.13096.12566.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gDqcOkt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8C39.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.GenKryptik.FYGA.tr.13096.12566.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp8C39.tmp
memory/636-64-0x0000000000400000-0x000000000043C000-memory.dmp
memory/636-61-0x0000000000400000-0x000000000043C000-memory.dmp
memory/636-62-0x0000000000400000-0x000000000043C000-memory.dmp
memory/636-65-0x0000000000400000-0x000000000043C000-memory.dmp
memory/636-66-0x0000000000400000-0x000000000043C000-memory.dmp
memory/636-69-0x0000000000400000-0x000000000043C000-memory.dmp
memory/636-71-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1468-57-0x00000000051E0000-0x00000000052A2000-memory.dmp
memory/1468-58-0x0000000004DE0000-0x0000000004E5A000-memory.dmp
memory/1468-56-0x0000000000270000-0x0000000000282000-memory.dmp
memory/1468-55-0x0000000076BA1000-0x0000000076BA3000-memory.dmp
memory/1468-54-0x0000000001170000-0x000000000126C000-memory.dmp