Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20-01-2023 19:31
Static task
static1
Behavioral task
behavioral1
Sample
3acb899b3a2fa5c7901009f212342098.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
3acb899b3a2fa5c7901009f212342098.exe
Resource
win10v2004-20220812-en
General
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Target
3acb899b3a2fa5c7901009f212342098.exe
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Size
704KB
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MD5
3acb899b3a2fa5c7901009f212342098
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SHA1
c5f65bb0c5a0bc89400b4e405b200ba692efe490
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SHA256
bf0fa71205913df440b0553f3c68bcdbb866cc740d64c47729bc60e56b335338
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SHA512
6ef04dad1215ff26cc90912377bf2c1b4cf89b3b8621e7c1f82170b849f2524a64fa6a3683512941edeaf58272af86741e7610e32045e24463460e3a3b189b50
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SSDEEP
12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZoCzZWpfc:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pc6
Malware Config
Signatures
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Matiex Main payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/524-140-0x0000000000400000-0x0000000000482000-memory.dmp family_matiex -
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 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:
3acb899b3a2fa5c7901009f212342098.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3acb899b3a2fa5c7901009f212342098.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3acb899b3a2fa5c7901009f212342098.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3acb899b3a2fa5c7901009f212342098.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 10 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.exedescription pid process target process PID 4476 set thread context of 524 4476 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 800 524 WerFault.exe 3acb899b3a2fa5c7901009f212342098.exe -
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: MapViewOfSection 2 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.exe3acb899b3a2fa5c7901009f212342098.exepid process 4204 3acb899b3a2fa5c7901009f212342098.exe 4476 3acb899b3a2fa5c7901009f212342098.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.exedescription pid process Token: SeDebugPrivilege 524 3acb899b3a2fa5c7901009f212342098.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.execmd.exe3acb899b3a2fa5c7901009f212342098.exedescription pid process target process PID 4204 wrote to memory of 1108 4204 3acb899b3a2fa5c7901009f212342098.exe cmd.exe PID 4204 wrote to memory of 1108 4204 3acb899b3a2fa5c7901009f212342098.exe cmd.exe PID 4204 wrote to memory of 1108 4204 3acb899b3a2fa5c7901009f212342098.exe cmd.exe PID 4204 wrote to memory of 4852 4204 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 4204 wrote to memory of 4852 4204 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 4204 wrote to memory of 4852 4204 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 1108 wrote to memory of 1636 1108 cmd.exe schtasks.exe PID 1108 wrote to memory of 1636 1108 cmd.exe schtasks.exe PID 1108 wrote to memory of 1636 1108 cmd.exe schtasks.exe PID 4204 wrote to memory of 4476 4204 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 4204 wrote to memory of 4476 4204 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 4204 wrote to memory of 4476 4204 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 4476 wrote to memory of 524 4476 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 4476 wrote to memory of 524 4476 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 4476 wrote to memory of 524 4476 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 4476 wrote to memory of 524 4476 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe -
outlook_office_path 1 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3acb899b3a2fa5c7901009f212342098.exe -
outlook_win_path 1 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3acb899b3a2fa5c7901009f212342098.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"C:\Users\Admin\AppData\Local\Temp\3acb899b3a2fa5c7901009f212342098.exe"3⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 524 -s 16364⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 524 -ip 5241⤵
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\1cf577b9dd994dc5b1fb65c6529fbb44.xmlFilesize
1KB
MD555dde6d4d97c64cba35b6d2c78a6508c
SHA1673a780e4cc091904388404eae441cad1f55366f
SHA256708bb85d40fd6c5d3b70c6c6c36a13f03a16d4accedecf5acee6da60a1afead5
SHA512582adf57f1195087aee4e2d50281a3444d2b85930340a441a0a829e2f6aefa41acce5dbf9d05ab43c0395018d859f22e084ac8a1ae6ffd2a9154b8884c4223ab
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memory/524-137-0x0000000000000000-mapping.dmp
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memory/524-140-0x0000000000400000-0x0000000000482000-memory.dmpFilesize
520KB
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memory/524-141-0x0000000005770000-0x000000000580C000-memory.dmpFilesize
624KB
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memory/524-142-0x0000000005DC0000-0x0000000006364000-memory.dmpFilesize
5.6MB
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memory/524-143-0x0000000005810000-0x0000000005876000-memory.dmpFilesize
408KB
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memory/1108-132-0x0000000000000000-mapping.dmp
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memory/1636-134-0x0000000000000000-mapping.dmp
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memory/4204-136-0x0000000000CFA000-0x0000000000D00000-memory.dmpFilesize
24KB
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memory/4476-135-0x0000000000000000-mapping.dmp
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memory/4476-139-0x0000000000F3A000-0x0000000000F40000-memory.dmpFilesize
24KB
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memory/4852-133-0x0000000000000000-mapping.dmp