Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
15-11-2024 02:06
Static task
static1
Behavioral task
behavioral1
Sample
Bukti-Transfer.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
Bukti-Transfer.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
Bukti_Transfer.exe
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
Bukti_Transfer.exe
Resource
win10v2004-20241007-en
General
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Target
Bukti_Transfer.exe
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Size
826KB
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MD5
37e06c2bc98981aeb96dd602ab30469d
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SHA1
07676c38245928dfc27e2a84279d8ef7d274a47c
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SHA256
6001b10c42cba43fd391a3f6df33506b631f94345909d961906870cb2a58972a
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SHA512
30866b42266c4ad674113aaa5dd89404dcb78bf7ea9a31612a833f3086517d56f423a87d4c77e200c68f0650a493d26c148ec7d913bb37a4dec1ca8121899e33
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SSDEEP
12288:FJLqUr5Vko180J5ZZVwrTpcdUV02gMcF3hEPCUHpDSQzK/9JdlH:780JPZirTKp2gMAhbApDSQG9Jz
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
[email protected] - Password:
vjgazgheutfgivme
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Agenttesla family
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AgentTesla payload 5 IoCs
Processes:
resource yara_rule behavioral3/memory/2572-19-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral3/memory/2572-26-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral3/memory/2572-25-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral3/memory/2572-24-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral3/memory/2572-21-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
Bukti_Transfer.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Bukti_Transfer.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Bukti_Transfer.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Bukti_Transfer.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Bukti_Transfer.exedescription pid Process procid_target PID 784 set thread context of 2572 784 Bukti_Transfer.exe 35 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
Bukti_Transfer.exepowershell.exeschtasks.exeBukti_Transfer.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Bukti_Transfer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Bukti_Transfer.exe -
Scheduled Task/Job: Scheduled Task 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 5 IoCs
Processes:
Bukti_Transfer.exeBukti_Transfer.exepowershell.exepid Process 784 Bukti_Transfer.exe 784 Bukti_Transfer.exe 2572 Bukti_Transfer.exe 2572 Bukti_Transfer.exe 2824 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Bukti_Transfer.exeBukti_Transfer.exepowershell.exedescription pid Process Token: SeDebugPrivilege 784 Bukti_Transfer.exe Token: SeDebugPrivilege 2572 Bukti_Transfer.exe Token: SeDebugPrivilege 2824 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Bukti_Transfer.exepid Process 2572 Bukti_Transfer.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
Bukti_Transfer.exedescription pid Process procid_target PID 784 wrote to memory of 2824 784 Bukti_Transfer.exe 31 PID 784 wrote to memory of 2824 784 Bukti_Transfer.exe 31 PID 784 wrote to memory of 2824 784 Bukti_Transfer.exe 31 PID 784 wrote to memory of 2824 784 Bukti_Transfer.exe 31 PID 784 wrote to memory of 2956 784 Bukti_Transfer.exe 33 PID 784 wrote to memory of 2956 784 Bukti_Transfer.exe 33 PID 784 wrote to memory of 2956 784 Bukti_Transfer.exe 33 PID 784 wrote to memory of 2956 784 Bukti_Transfer.exe 33 PID 784 wrote to memory of 2572 784 Bukti_Transfer.exe 35 PID 784 wrote to memory of 2572 784 Bukti_Transfer.exe 35 PID 784 wrote to memory of 2572 784 Bukti_Transfer.exe 35 PID 784 wrote to memory of 2572 784 Bukti_Transfer.exe 35 PID 784 wrote to memory of 2572 784 Bukti_Transfer.exe 35 PID 784 wrote to memory of 2572 784 Bukti_Transfer.exe 35 PID 784 wrote to memory of 2572 784 Bukti_Transfer.exe 35 PID 784 wrote to memory of 2572 784 Bukti_Transfer.exe 35 PID 784 wrote to memory of 2572 784 Bukti_Transfer.exe 35 -
outlook_office_path 1 IoCs
Processes:
Bukti_Transfer.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Bukti_Transfer.exe -
outlook_win_path 1 IoCs
Processes:
Bukti_Transfer.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Bukti_Transfer.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer.exe"C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:784 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gfGxxTwL.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2824
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gfGxxTwL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C05.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2956
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C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer.exe"C:\Users\Admin\AppData\Local\Temp\Bukti_Transfer.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2572
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD56d465ba1ef64500d5efe4bf4e5d21d78
SHA1798062505d146c50b81a52c9c1ec78252371a06d
SHA25665f3dc70ecc8ab47cb56beb3528b952d70c8b79f146a3f4e6fbc2579da472d79
SHA5129748f27e313162cd7b355817ceaddc312fd641419c09e9d4ae8119589c9c18d6973c482456790e1b14860d9bd0707a9cdafea850e7b943585178535c6454a0e9