Analysis
- max time kernel
144s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
13/06/2024, 01:57
General
- Target SOA MAY.exe
- Size 749KB
- Sample240613-cdbcvszgmc
- SHA256 4945386dd90b6b092bd13414fe19d0a296ce17f0822632a6b6567252f692cef5
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
mail.sibasultrasonics.com
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Port
587
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Username
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Password
Ken@321$MD
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
- Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
- Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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
- 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 behavior: EnumeratesProcesses 12 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kxyfEt.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kxyfEt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDE6.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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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 --field-trial-handle=1392,i,1809100026287847100,9768898026582633513,262144 --variations-seed-version --mojo-platform-channel-handle=4024 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_k0oqvfrv.udk.ps1
tmpDE6.tmp
memory/1076-6-0x0000000007490000-0x00000000074AA000-memory.dmp
memory/1076-5-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/1076-4-0x0000000005C10000-0x0000000005C1A000-memory.dmp
memory/1076-7-0x0000000006120000-0x0000000006130000-memory.dmp
memory/1076-8-0x00000000074B0000-0x0000000007534000-memory.dmp
memory/1076-9-0x0000000009B40000-0x0000000009BDC000-memory.dmp
memory/1076-46-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/1076-0-0x0000000074E9E000-0x0000000074E9F000-memory.dmp
memory/1076-3-0x0000000005C20000-0x0000000005CB2000-memory.dmp
memory/1076-2-0x0000000006130000-0x00000000066D4000-memory.dmp
memory/1076-1-0x0000000000D90000-0x0000000000E4C000-memory.dmp
memory/1848-18-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/1848-81-0x00000000076D0000-0x00000000076D8000-memory.dmp
memory/1848-21-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/1848-25-0x0000000005A10000-0x0000000005A76000-memory.dmp
memory/1848-24-0x00000000059A0000-0x0000000005A06000-memory.dmp
memory/1848-72-0x0000000007290000-0x0000000007333000-memory.dmp
memory/1848-88-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/1848-74-0x00000000073B0000-0x00000000073CA000-memory.dmp
memory/1848-56-0x0000000071560000-0x00000000715AC000-memory.dmp
memory/1848-23-0x0000000005900000-0x0000000005922000-memory.dmp
memory/1848-47-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/1848-79-0x00000000075F0000-0x0000000007604000-memory.dmp
memory/1848-77-0x00000000075B0000-0x00000000075C1000-memory.dmp
memory/1848-73-0x00000000079F0000-0x000000000806A000-memory.dmp
memory/2028-90-0x0000000006E20000-0x0000000006E70000-memory.dmp
memory/2028-20-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3660-16-0x00000000057E0000-0x0000000005E08000-memory.dmp
memory/3660-51-0x0000000071560000-0x00000000715AC000-memory.dmp
memory/3660-70-0x0000000007590000-0x00000000075AE000-memory.dmp
memory/3660-50-0x0000000006B90000-0x0000000006BC2000-memory.dmp
memory/3660-75-0x0000000007950000-0x000000000795A000-memory.dmp
memory/3660-76-0x0000000007B60000-0x0000000007BF6000-memory.dmp
memory/3660-49-0x0000000006A70000-0x0000000006ABC000-memory.dmp
memory/3660-78-0x0000000007B10000-0x0000000007B1E000-memory.dmp
memory/3660-48-0x00000000065C0000-0x00000000065DE000-memory.dmp
memory/3660-80-0x0000000007C20000-0x0000000007C3A000-memory.dmp
memory/3660-45-0x0000000006000000-0x0000000006354000-memory.dmp
memory/3660-40-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/3660-87-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/3660-17-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/3660-15-0x0000000074E90000-0x0000000075640000-memory.dmp
memory/3660-14-0x0000000002CB0000-0x0000000002CE6000-memory.dmp