Analysis
- max time kernel
40s - max time network
48s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
15/06/2024, 01:12
General
- Target 7bf2b1990bf1816d1f2bf233df037f4c2cb1a9d4ba038a4f9e562d4a71ff2321.exe
- Size 889KB
- Sample240615-bk12esteld
- SHA256 7bf2b1990bf1816d1f2bf233df037f4c2cb1a9d4ba038a4f9e562d4a71ff2321
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot7288742529:AAFy9pkJ9MIinEpcZLEIXwuRG8vtWc1PK-8/
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7bf2b1990bf1816d1f2bf233df037f4c2cb1a9d4ba038a4f9e562d4a71ff2321.exe"C:\Users\Admin\AppData\Local\Temp\7bf2b1990bf1816d1f2bf233df037f4c2cb1a9d4ba038a4f9e562d4a71ff2321.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\7bf2b1990bf1816d1f2bf233df037f4c2cb1a9d4ba038a4f9e562d4a71ff2321.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AocKLSuqGUeWuB.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AocKLSuqGUeWuB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9431.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\7bf2b1990bf1816d1f2bf233df037f4c2cb1a9d4ba038a4f9e562d4a71ff2321.exe"C:\Users\Admin\AppData\Local\Temp\7bf2b1990bf1816d1f2bf233df037f4c2cb1a9d4ba038a4f9e562d4a71ff2321.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_00gr1dhc.okf.ps1
tmp9431.tmp
memory/332-77-0x0000000007B20000-0x0000000007B2E000-memory.dmp
memory/332-80-0x0000000007C10000-0x0000000007C18000-memory.dmp
memory/332-79-0x0000000007C30000-0x0000000007C4A000-memory.dmp
memory/332-78-0x0000000007B30000-0x0000000007B44000-memory.dmp
memory/332-20-0x00000000746F0000-0x0000000074EA0000-memory.dmp
memory/332-74-0x0000000007960000-0x000000000796A000-memory.dmp
memory/332-72-0x0000000007F30000-0x00000000085AA000-memory.dmp
memory/332-62-0x0000000070DC0000-0x0000000070E0C000-memory.dmp
memory/332-86-0x00000000746F0000-0x0000000074EA0000-memory.dmp
memory/332-18-0x00000000746F0000-0x0000000074EA0000-memory.dmp
memory/1912-34-0x0000000000400000-0x0000000000444000-memory.dmp
memory/1912-88-0x0000000006E50000-0x0000000006EA0000-memory.dmp
memory/3304-35-0x0000000005E20000-0x0000000006174000-memory.dmp
memory/3304-15-0x00000000746F0000-0x0000000074EA0000-memory.dmp
memory/3304-22-0x0000000005A60000-0x0000000005A82000-memory.dmp
memory/3304-17-0x00000000746F0000-0x0000000074EA0000-memory.dmp
memory/3304-16-0x0000000005300000-0x0000000005928000-memory.dmp
memory/3304-29-0x0000000005C00000-0x0000000005C66000-memory.dmp
memory/3304-87-0x00000000746F0000-0x0000000074EA0000-memory.dmp
memory/3304-76-0x0000000007710000-0x0000000007721000-memory.dmp
memory/3304-28-0x0000000005B20000-0x0000000005B86000-memory.dmp
memory/3304-47-0x0000000006200000-0x000000000621E000-memory.dmp
memory/3304-48-0x0000000006320000-0x000000000636C000-memory.dmp
memory/3304-50-0x0000000070DC0000-0x0000000070E0C000-memory.dmp
memory/3304-49-0x00000000071A0000-0x00000000071D2000-memory.dmp
memory/3304-60-0x0000000007180000-0x000000000719E000-memory.dmp
memory/3304-61-0x00000000073E0000-0x0000000007483000-memory.dmp
memory/3304-19-0x00000000746F0000-0x0000000074EA0000-memory.dmp
memory/3304-14-0x0000000004C30000-0x0000000004C66000-memory.dmp
memory/3304-73-0x0000000007510000-0x000000000752A000-memory.dmp
memory/3304-75-0x0000000007790000-0x0000000007826000-memory.dmp
memory/3736-9-0x00000000081B0000-0x0000000008236000-memory.dmp
memory/3736-46-0x00000000746F0000-0x0000000074EA0000-memory.dmp
memory/3736-8-0x0000000007E30000-0x0000000007E40000-memory.dmp
memory/3736-7-0x0000000007E10000-0x0000000007E2A000-memory.dmp
memory/3736-5-0x0000000005310000-0x00000000053AC000-memory.dmp
memory/3736-6-0x00000000746F0000-0x0000000074EA0000-memory.dmp
memory/3736-4-0x0000000005210000-0x000000000521A000-memory.dmp
memory/3736-3-0x0000000005070000-0x0000000005102000-memory.dmp
memory/3736-2-0x0000000005620000-0x0000000005BC4000-memory.dmp
memory/3736-0-0x00000000746FE000-0x00000000746FF000-memory.dmp
memory/3736-1-0x0000000000590000-0x0000000000674000-memory.dmp