Analysis
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max time kernel
129s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
29-03-2024 20:32
Static task
static1
Behavioral task
behavioral1
Sample
proforma invoice.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
proforma invoice.exe
Resource
win10v2004-20240319-en
General
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Target
proforma invoice.exe
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Size
388KB
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MD5
07a9c9d3de53ce20de184c9b22137657
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SHA1
38db554f03a2b190c7d485c3cb52e6a8d70abba9
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SHA256
af0902b859d5df130dc0b9f8e0541b88da80683721307249b239e5da98050811
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SHA512
3f98a41b2d9a274c8a855e4b05c99c9ef575df87273961d0cca5660b7631e577606747396cc65e691ed3318cc78371179a8c48bcd8e46ea5fc284ee88bdd8d62
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SSDEEP
12288:ABSBmd3IFhfV/AMcIlXbK/sXGgSCkZUKxE:3BRNJZmsXGgroq
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
sg2plcpnl0023.prod.sin2.secureserver.net - Port:
587 - Username:
[email protected] - Password:
User@40378
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/2500-9-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2500-10-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2500-13-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2500-15-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2500-17-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2500-20-0x0000000004C30000-0x0000000004C70000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
proforma invoice.exedescription pid process target process PID 2068 set thread context of 2500 2068 proforma invoice.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
proforma invoice.exeRegSvcs.exepid process 2068 proforma invoice.exe 2068 proforma invoice.exe 2500 RegSvcs.exe 2500 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
proforma invoice.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 2068 proforma invoice.exe Token: SeDebugPrivilege 2500 RegSvcs.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
proforma invoice.exedescription pid process target process PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe PID 2068 wrote to memory of 2500 2068 proforma invoice.exe RegSvcs.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\proforma invoice.exe"C:\Users\Admin\AppData\Local\Temp\proforma invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2068-0-0x00000000002D0000-0x0000000000338000-memory.dmpFilesize
416KB
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memory/2068-1-0x00000000745C0000-0x0000000074CAE000-memory.dmpFilesize
6.9MB
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memory/2068-2-0x0000000004780000-0x00000000047C0000-memory.dmpFilesize
256KB
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memory/2068-3-0x0000000000600000-0x000000000060A000-memory.dmpFilesize
40KB
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memory/2068-4-0x00000000745C0000-0x0000000074CAE000-memory.dmpFilesize
6.9MB
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memory/2068-5-0x0000000004780000-0x00000000047C0000-memory.dmpFilesize
256KB
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memory/2068-6-0x0000000004EE0000-0x0000000004F40000-memory.dmpFilesize
384KB
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memory/2068-18-0x00000000745C0000-0x0000000074CAE000-memory.dmpFilesize
6.9MB
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memory/2500-10-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2500-9-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2500-8-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2500-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2500-13-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2500-15-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2500-17-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2500-19-0x00000000745C0000-0x0000000074CAE000-memory.dmpFilesize
6.9MB
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memory/2500-7-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2500-20-0x0000000004C30000-0x0000000004C70000-memory.dmpFilesize
256KB
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memory/2500-22-0x00000000745C0000-0x0000000074CAE000-memory.dmpFilesize
6.9MB
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memory/2500-23-0x0000000004C30000-0x0000000004C70000-memory.dmpFilesize
256KB