Analysis
- max time kernel
118s - max time network
121s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
- submitted
13/02/2024, 10:13
General
- Target DAP Proforma Invoice,.exe
- Size 665KB
- Sample240213-l83v2afc5x
- SHA256 2747e5b776f659d7c7d53558362bd60d38aaddb74b33f8a92428caebef64c058
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.strongbowoffshore.com
-
Port
587
-
Username
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Password
vLz3hccG
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 3 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\DAP Proforma Invoice,.exe"C:\Users\Admin\AppData\Local\Temp\DAP Proforma Invoice,.exe"1⤵
- 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\Roaming\NXIRrKV.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NXIRrKV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E9D.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmp4E9D.tmp
memory/2300-32-0x000000006F000000-0x000000006F5AB000-memory.dmp
memory/2300-31-0x0000000002B10000-0x0000000002B50000-memory.dmp
memory/2300-28-0x000000006F000000-0x000000006F5AB000-memory.dmp
memory/2300-27-0x000000006F000000-0x000000006F5AB000-memory.dmp
memory/2740-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2740-23-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2740-35-0x0000000000D70000-0x0000000000DB0000-memory.dmp
memory/2740-14-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2740-15-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2740-16-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2740-17-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2740-34-0x0000000074C30000-0x000000007531E000-memory.dmp
memory/2740-21-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2740-30-0x0000000000D70000-0x0000000000DB0000-memory.dmp
memory/2740-25-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2740-29-0x0000000074C30000-0x000000007531E000-memory.dmp
memory/2868-26-0x0000000074C30000-0x000000007531E000-memory.dmp
memory/2868-3-0x0000000000390000-0x00000000003A4000-memory.dmp
memory/2868-4-0x0000000000430000-0x000000000043A000-memory.dmp
memory/2868-6-0x00000000047E0000-0x000000000486A000-memory.dmp
memory/2868-2-0x0000000000350000-0x0000000000390000-memory.dmp
memory/2868-1-0x0000000074C30000-0x000000007531E000-memory.dmp
memory/2868-0-0x0000000001220000-0x00000000012CC000-memory.dmp
memory/2868-5-0x0000000000570000-0x000000000057E000-memory.dmp