Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 1 IoCs
Processes:
resource yara_rule behavioral2/memory/5012-20-0x0000000000400000-0x000000000043C000-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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Bukti-Transfer.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation Bukti-Transfer.exe -
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-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Bukti-Transfer.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Bukti-Transfer.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Bukti-Transfer.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Bukti-Transfer.exedescription pid Process procid_target PID 3488 set thread context of 5012 3488 Bukti-Transfer.exe 106 -
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.exeBukti-Transfer.exepowershell.exeschtasks.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Bukti-Transfer.exe 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 -
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 6 IoCs
Processes:
Bukti-Transfer.exepowershell.exeBukti-Transfer.exepid Process 3488 Bukti-Transfer.exe 1060 powershell.exe 3488 Bukti-Transfer.exe 1060 powershell.exe 5012 Bukti-Transfer.exe 5012 Bukti-Transfer.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Bukti-Transfer.exepowershell.exeBukti-Transfer.exedescription pid Process Token: SeDebugPrivilege 3488 Bukti-Transfer.exe Token: SeDebugPrivilege 1060 powershell.exe Token: SeDebugPrivilege 5012 Bukti-Transfer.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Bukti-Transfer.exepid Process 5012 Bukti-Transfer.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
Bukti-Transfer.exedescription pid Process procid_target PID 3488 wrote to memory of 1060 3488 Bukti-Transfer.exe 102 PID 3488 wrote to memory of 1060 3488 Bukti-Transfer.exe 102 PID 3488 wrote to memory of 1060 3488 Bukti-Transfer.exe 102 PID 3488 wrote to memory of 1804 3488 Bukti-Transfer.exe 104 PID 3488 wrote to memory of 1804 3488 Bukti-Transfer.exe 104 PID 3488 wrote to memory of 1804 3488 Bukti-Transfer.exe 104 PID 3488 wrote to memory of 5012 3488 Bukti-Transfer.exe 106 PID 3488 wrote to memory of 5012 3488 Bukti-Transfer.exe 106 PID 3488 wrote to memory of 5012 3488 Bukti-Transfer.exe 106 PID 3488 wrote to memory of 5012 3488 Bukti-Transfer.exe 106 PID 3488 wrote to memory of 5012 3488 Bukti-Transfer.exe 106 PID 3488 wrote to memory of 5012 3488 Bukti-Transfer.exe 106 PID 3488 wrote to memory of 5012 3488 Bukti-Transfer.exe 106 PID 3488 wrote to memory of 5012 3488 Bukti-Transfer.exe 106 -
outlook_office_path 1 IoCs
Processes:
Bukti-Transfer.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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-1-5-21-493223053-2004649691-1575712786-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3488 -
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:1060
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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\tmp31C9.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1804
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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:5012
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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
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5ab6e74d90e679c993a26dfa0c59a24d0
SHA13fafb5738a6c01aa186cb47cad42660f6f5112e3
SHA2567fbe6b72c73caba624a5eadb91bc3d6dea4a50699d5094d9823ffbd71f5cacc2
SHA512c984f6de983dbc81b730cc8e0767031a26d51cd697c243fa4130341caa667d76ce9367d3f532cb5062a540eaee2189d3b01ce683445a6fe7c99db972ccbe3d0f