Analysis
- max time kernel
146s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
05/06/2023, 12:54
General
- Target 77b72d9e11b5b61983903918dfb822e8c6c1e3a4acd6a5fde5db7a3cf004b445.exe
- Size 103KB
- Sample230605-p5hmgagf94
- SHA256 77b72d9e11b5b61983903918dfb822e8c6c1e3a4acd6a5fde5db7a3cf004b445
Malware Config
Extracted
-
purecrypter
-
http://208.67.107.146/Xvhwgnaxcaj.png
Extracted
-
agenttesla
-
https://api.telegram.org/bot6237173637:AAHL1SZ0swNAdHMB508Hs_WnK-RKakXlUmA/
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 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
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\77b72d9e11b5b61983903918dfb822e8c6c1e3a4acd6a5fde5db7a3cf004b445.exe"C:\Users\Admin\AppData\Local\Temp\77b72d9e11b5b61983903918dfb822e8c6c1e3a4acd6a5fde5db7a3cf004b445.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
- 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
Loading Replay Monitor...
Downloads
memory/3288-133-0x0000000000710000-0x0000000000730000-memory.dmp
memory/3288-134-0x0000000005790000-0x0000000005D34000-memory.dmp
memory/3288-135-0x00000000050E0000-0x0000000005172000-memory.dmp
memory/3288-136-0x0000000005320000-0x0000000005330000-memory.dmp
memory/3288-137-0x00000000050D0000-0x00000000050DA000-memory.dmp
memory/3288-138-0x0000000007820000-0x0000000007842000-memory.dmp
memory/4152-140-0x0000000000400000-0x0000000000430000-memory.dmp
memory/4152-142-0x0000000004EB0000-0x0000000004F16000-memory.dmp
memory/4152-143-0x0000000004FB0000-0x0000000004FC0000-memory.dmp
memory/4152-144-0x0000000006270000-0x00000000062C0000-memory.dmp
memory/4152-145-0x0000000006490000-0x0000000006652000-memory.dmp
memory/4152-146-0x0000000004FB0000-0x0000000004FC0000-memory.dmp