Analysis
- max time kernel
132s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
01/06/2024, 19:47
General
- Target fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.exe
- Size 717KB
- Sample240601-yhsctsdh52
- SHA256 fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3
Malware Config
Extracted
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Protocol
smtp
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Host
mail.formosabag.co.id
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Port
587
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Username
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Password
@2022exim02^^**
Extracted
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agenttesla
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Protocol
smtp
-
Host
mail.formosabag.co.id
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Port
587
-
Username
-
Password
@2022exim02^^**
-
Email to
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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 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 16 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.exe"C:\Users\Admin\AppData\Local\Temp\fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.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\fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.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\drpeBYm.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\drpeBYm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp702F.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.exe"C:\Users\Admin\AppData\Local\Temp\fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.exe"C:\Users\Admin\AppData\Local\Temp\fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.exe"C:\Users\Admin\AppData\Local\Temp\fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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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
fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3.exe.log
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_qwvafqdj.1h2.ps1
tmp702F.tmp
memory/1056-14-0x0000000002990000-0x00000000029C6000-memory.dmp
memory/1056-20-0x0000000005B90000-0x0000000005BF6000-memory.dmp
memory/1056-80-0x00000000077F0000-0x0000000007804000-memory.dmp
memory/1056-76-0x0000000007620000-0x000000000762A000-memory.dmp
memory/1056-44-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/1056-21-0x0000000005C00000-0x0000000005C66000-memory.dmp
memory/1056-90-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/1056-51-0x0000000007230000-0x0000000007262000-memory.dmp
memory/1056-17-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/1056-79-0x00000000077E0000-0x00000000077EE000-memory.dmp
memory/1056-19-0x0000000005AF0000-0x0000000005B12000-memory.dmp
memory/1056-18-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/1056-62-0x0000000006860000-0x000000000687E000-memory.dmp
memory/1056-77-0x0000000007830000-0x00000000078C6000-memory.dmp
memory/1056-52-0x000000006FFF0000-0x000000007003C000-memory.dmp
memory/1056-83-0x00000000078D0000-0x00000000078D8000-memory.dmp
memory/1056-81-0x00000000078F0000-0x000000000790A000-memory.dmp
memory/2296-8-0x0000000006850000-0x00000000068D4000-memory.dmp
memory/2296-9-0x0000000009120000-0x00000000091BC000-memory.dmp
memory/2296-0-0x0000000074B3E000-0x0000000074B3F000-memory.dmp
memory/2296-7-0x0000000005630000-0x0000000005640000-memory.dmp
memory/2296-6-0x00000000058D0000-0x00000000058E8000-memory.dmp
memory/2296-50-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/2296-5-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/2296-4-0x0000000005390000-0x000000000539A000-memory.dmp
memory/2296-3-0x00000000053E0000-0x0000000005472000-memory.dmp
memory/2296-2-0x00000000058F0000-0x0000000005E94000-memory.dmp
memory/2296-1-0x00000000008E0000-0x0000000000994000-memory.dmp
memory/2908-45-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2908-91-0x0000000006710000-0x0000000006760000-memory.dmp
memory/3612-46-0x0000000005FA0000-0x0000000005FBE000-memory.dmp
memory/3612-73-0x0000000007180000-0x0000000007223000-memory.dmp
memory/3612-63-0x000000006FFF0000-0x000000007003C000-memory.dmp
memory/3612-78-0x00000000074D0000-0x00000000074E1000-memory.dmp
memory/3612-49-0x0000000006030000-0x000000000607C000-memory.dmp
memory/3612-75-0x00000000072D0000-0x00000000072EA000-memory.dmp
memory/3612-33-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/3612-34-0x00000000059A0000-0x0000000005CF4000-memory.dmp
memory/3612-86-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/3612-22-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/3612-16-0x0000000074B30000-0x00000000752E0000-memory.dmp
memory/3612-15-0x0000000005140000-0x0000000005768000-memory.dmp
memory/3612-74-0x0000000007910000-0x0000000007F8A000-memory.dmp