Analysis
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max time kernel
135s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 12:06
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE9.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
INVOICE9.exe
Resource
win10v2004-20220414-en
General
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Target
INVOICE9.exe
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Size
550KB
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MD5
005f4b79b9e9fdb2690c8e2db96daa7d
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SHA1
3a5235d9f3d7c048d569d2bfea64954c71be95a8
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SHA256
88ac38fd4d4a5bff6e2f09c5071b6b8d654e2d65da6662c02d14fabb32047ca7
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SHA512
541993e59dd90af133dffc4df7b10fd7889cd59e852f5fd3f5388cc2e87ff0883f4f5fdda523b7ac45f50860be7bd42526a7ce30ef493a877947af7cbb819bfb
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://asnbanknl.com/ - Port:
21 - Username:
smartpips - Password:
3mPf4$l2
Protocol: ftp- Host:
ftp://asnbanknl.com/ - Port:
21 - Username:
smartpips - Password:
3mPf4$l2
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/960-63-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/960-65-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/960-64-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/960-66-0x0000000000446A1E-mapping.dmp family_agenttesla behavioral1/memory/960-68-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/960-70-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
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 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
INVOICE9.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE9.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE9.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE9.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
INVOICE9.exedescription pid process target process PID 1960 set thread context of 960 1960 INVOICE9.exe INVOICE9.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 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 3 IoCs
Processes:
INVOICE9.exeINVOICE9.exepid process 1960 INVOICE9.exe 960 INVOICE9.exe 960 INVOICE9.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
INVOICE9.exeINVOICE9.exedescription pid process Token: SeDebugPrivilege 1960 INVOICE9.exe Token: SeDebugPrivilege 960 INVOICE9.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
INVOICE9.exepid process 960 INVOICE9.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
INVOICE9.exedescription pid process target process PID 1960 wrote to memory of 1284 1960 INVOICE9.exe schtasks.exe PID 1960 wrote to memory of 1284 1960 INVOICE9.exe schtasks.exe PID 1960 wrote to memory of 1284 1960 INVOICE9.exe schtasks.exe PID 1960 wrote to memory of 1284 1960 INVOICE9.exe schtasks.exe PID 1960 wrote to memory of 1792 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 1792 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 1792 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 1792 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 960 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 960 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 960 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 960 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 960 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 960 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 960 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 960 1960 INVOICE9.exe INVOICE9.exe PID 1960 wrote to memory of 960 1960 INVOICE9.exe INVOICE9.exe -
outlook_office_path 1 IoCs
Processes:
INVOICE9.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE9.exe -
outlook_win_path 1 IoCs
Processes:
INVOICE9.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE9.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INVOICE9.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nLAgnrQTnlHGEV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9A3E.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\INVOICE9.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\INVOICE9.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp9A3E.tmpFilesize
1KB
MD5db1572d148eff7fa0563002b7d7dd54f
SHA1b848c3a84d01466ccf06d55e16abe02adc9b07dc
SHA2561037cc34508787ce64aa65bd78ac2e68491e837c757e3f533aea3ce30688441d
SHA51292bf000e6ca0770c29e9f968155ac89ebfcc0c90252496904d80eedc3adbefe2817092d1d6b86187423e7f23f7ec113e221ab7cad45f21bdeb4e722328179b0c
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memory/960-65-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/960-60-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/960-61-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/960-63-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/960-64-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/960-66-0x0000000000446A1E-mapping.dmp
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memory/960-68-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/960-70-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1284-58-0x0000000000000000-mapping.dmp
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memory/1960-56-0x0000000000260000-0x0000000000268000-memory.dmpFilesize
32KB
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memory/1960-57-0x0000000000A30000-0x0000000000A84000-memory.dmpFilesize
336KB
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memory/1960-55-0x0000000075A61000-0x0000000075A63000-memory.dmpFilesize
8KB
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memory/1960-54-0x0000000000B10000-0x0000000000BA0000-memory.dmpFilesize
576KB