Analysis
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max time kernel
149s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
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submitted
22-05-2024 02:07
General
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Target
af852fa71e4e2979b288920a1144bc6fdeaf4b47747e6a18a457f1242ab8f7cd.exe
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Size
692KB
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MD5
c7582e3427656fa19fb588ea4385cb50
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SHA1
38412c46489ba803a340d702d477dd2c01df20ce
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SHA256
af852fa71e4e2979b288920a1144bc6fdeaf4b47747e6a18a457f1242ab8f7cd
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SHA512
db56c10b54d637c600d743c95781ec881f758df61446d6af3eea6566d4c74c9b43aa09fc288c2f1f7655b7c83c1cd961000385a5f2c5f508ff118256421697d9
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SSDEEP
12288:3EkSx504bFIOp+Ja1R7d7aLD23gMhiUsg8DYhm3b5d8ls9HdbQ0BeG2R48:UkSw4buWj1L7/g4ivgrh8d8lOlF64
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.bonnyriggdentalsurgery.com.au - Port:
587 - Username:
[email protected] - Password:
Sages101* - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
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Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
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Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
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Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
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Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
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Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
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Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
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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.
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Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\af852fa71e4e2979b288920a1144bc6fdeaf4b47747e6a18a457f1242ab8f7cd.exe"C:\Users\Admin\AppData\Local\Temp\af852fa71e4e2979b288920a1144bc6fdeaf4b47747e6a18a457f1242ab8f7cd.exe"1⤵
- Adds Run key to start application
- 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\af852fa71e4e2979b288920a1144bc6fdeaf4b47747e6a18a457f1242ab8f7cd.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\ZFawWoJAdbivD.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\ZFawWoJAdbivD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4FB6.tmp"2⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v13
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
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C:\Users\Admin\AppData\Local\Temp\tmp4FB6.tmpFilesize
1KB
MD567d8efda6be6d2625b49b77fce8050fd
SHA19dd6e4b71be8714c68e424350cccc569eed720ff
SHA2561d5c07d32abc2e680108d630390b9fdb35fb4c33052dc8014146580ef321c0f7
SHA512c907c145f0a04437dd1e0fc2e51d087fd154a100cbd6a9e159c88c74b0386cf6fd147c94d45a85643c533b3f86a06091741aa6178155dd5187d70898658c64ad
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\LB6L9JZTAFIP4IQL2D9H.tempFilesize
7KB
MD5d4b6316432b4ce34b50b4a7e7abeb01a
SHA1078e12dcc11c87f16e7b6624f10ce027bce752a1
SHA256a26ae632dea38b55f5475887cf60bf70e4f5a197cd4e1edb2f769898b7988687
SHA5121b54909eaf3861ef5a1066d5c71e06ed9b84c11ce23acaf48af5c4ed3e694abab35c6f0bd7285cd97fde5145070da95c92c68709167297dd9e4c39d6c44cf922
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memory/1616-0-0x00000000742DE000-0x00000000742DF000-memory.dmpFilesize
4KB
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memory/1616-1-0x00000000008B0000-0x0000000000964000-memory.dmpFilesize
720KB
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memory/1616-2-0x00000000742D0000-0x00000000749BE000-memory.dmpFilesize
6.9MB
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memory/1616-3-0x0000000000970000-0x000000000098A000-memory.dmpFilesize
104KB
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memory/1616-4-0x0000000000990000-0x00000000009A0000-memory.dmpFilesize
64KB
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memory/1616-5-0x0000000005C20000-0x0000000005CA4000-memory.dmpFilesize
528KB
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memory/1616-18-0x0000000004380000-0x00000000043C2000-memory.dmpFilesize
264KB
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memory/1616-19-0x00000000742DE000-0x00000000742DF000-memory.dmpFilesize
4KB
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memory/1616-20-0x00000000742D0000-0x00000000749BE000-memory.dmpFilesize
6.9MB