Analysis
- max time kernel
122s - max time network
125s - platform
windows7_x64 - resource
win7-20230712-en - resource tags
- submitted
17/07/2023, 09:21
General
- Target Invoice AR20230714N.7z.001.exe
- Size 621KB
- Sample230717-lbbqaaba83
- SHA256 a2693d124cf3f74ed8b8a9baa33c58df489ea77d7af5001b87a39d06e0108eb1
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.steamd.in
-
Port
587
-
Username
-
Password
Purchase321@#
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoice AR20230714N.7z.001.exe"C:\Users\Admin\AppData\Local\Temp\Invoice AR20230714N.7z.001.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uOIAThuH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1DEC.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- 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
tmp1DEC.tmp
memory/2576-54-0x0000000001150000-0x00000000011F2000-memory.dmp
memory/2576-55-0x0000000074BB0000-0x000000007529E000-memory.dmp
memory/2576-56-0x0000000004D60000-0x0000000004DA0000-memory.dmp
memory/2576-57-0x0000000074BB0000-0x000000007529E000-memory.dmp
memory/2576-58-0x0000000004D60000-0x0000000004DA0000-memory.dmp
memory/2576-59-0x0000000000450000-0x0000000000464000-memory.dmp
memory/2576-60-0x00000000005C0000-0x000000000063C000-memory.dmp
memory/2576-61-0x0000000000940000-0x0000000000970000-memory.dmp
memory/2576-78-0x0000000074BB0000-0x000000007529E000-memory.dmp
memory/2784-66-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2784-67-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2784-69-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2784-71-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2784-73-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2784-75-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2784-77-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2784-79-0x0000000074BB0000-0x000000007529E000-memory.dmp
memory/2784-65-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2784-80-0x00000000046D0000-0x0000000004710000-memory.dmp
memory/2784-81-0x0000000074BB0000-0x000000007529E000-memory.dmp