Analysis
- max time kernel
139s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
06/06/2024, 07:45
General
- Target ASMT-AR00-AST00 1980pcs.exe
- Size 1002KB
- Sample240606-jldxaabe2t
- SHA256 1f7dcd5994d22e9acfb0313d58b4227abcd33966ae38863d91fbed5a0cd7b415
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.medicalhome.com.pe
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Port
587
-
Username
-
Password
MHinfo01
Extracted
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agenttesla
-
Protocol
smtp
-
Host
mail.medicalhome.com.pe
-
Port
587
-
Username
-
Password
MHinfo01
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 11 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"C:\Users\Admin\AppData\Local\Temp\ASMT-AR00-AST00 1980pcs.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4444 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
ASMT-AR00-AST00 1980pcs.exe.log
memory/1604-4-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/1604-15-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/1604-3-0x0000000004DA0000-0x0000000004E32000-memory.dmp
memory/1604-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp
memory/1604-5-0x0000000004E50000-0x0000000004E5A000-memory.dmp
memory/1604-6-0x00000000051C0000-0x00000000051D6000-memory.dmp
memory/1604-8-0x0000000005210000-0x0000000005220000-memory.dmp
memory/1604-7-0x0000000005200000-0x000000000520E000-memory.dmp
memory/1604-2-0x0000000005470000-0x0000000005A14000-memory.dmp
memory/1604-9-0x0000000006820000-0x00000000068D8000-memory.dmp
memory/1604-10-0x0000000008EB0000-0x0000000008F4C000-memory.dmp
memory/1604-1-0x00000000002D0000-0x00000000003CC000-memory.dmp
memory/2884-14-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/2884-11-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2884-17-0x0000000005120000-0x0000000005186000-memory.dmp
memory/2884-16-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/2884-20-0x0000000006680000-0x00000000066D0000-memory.dmp
memory/2884-21-0x0000000074E40000-0x00000000755F0000-memory.dmp