Analysis
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max time kernel
30s -
max time network
83s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-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 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2044-60-0x0000000000400000-0x0000000000482000-memory.dmp family_matiex behavioral1/memory/2044-61-0x0000000000490000-0x0000000000502000-memory.dmp family_matiex behavioral1/memory/2044-62-0x0000000000490000-0x0000000000502000-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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3acb899b3a2fa5c7901009f212342098.exe Key opened \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3acb899b3a2fa5c7901009f212342098.exe Key opened \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3acb899b3a2fa5c7901009f212342098.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 7 freegeoip.app 8 freegeoip.app 3 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.exedescription pid process target process PID 1308 set thread context of 2044 1308 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1840 2044 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 1 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.exepid process 1308 3acb899b3a2fa5c7901009f212342098.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.exedescription pid process Token: SeDebugPrivilege 2044 3acb899b3a2fa5c7901009f212342098.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.execmd.exe3acb899b3a2fa5c7901009f212342098.exedescription pid process target process PID 1308 wrote to memory of 1756 1308 3acb899b3a2fa5c7901009f212342098.exe cmd.exe PID 1308 wrote to memory of 1756 1308 3acb899b3a2fa5c7901009f212342098.exe cmd.exe PID 1308 wrote to memory of 1756 1308 3acb899b3a2fa5c7901009f212342098.exe cmd.exe PID 1308 wrote to memory of 1756 1308 3acb899b3a2fa5c7901009f212342098.exe cmd.exe PID 1308 wrote to memory of 2044 1308 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 1308 wrote to memory of 2044 1308 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 1308 wrote to memory of 2044 1308 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 1308 wrote to memory of 2044 1308 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 1308 wrote to memory of 2044 1308 3acb899b3a2fa5c7901009f212342098.exe 3acb899b3a2fa5c7901009f212342098.exe PID 1756 wrote to memory of 900 1756 cmd.exe schtasks.exe PID 1756 wrote to memory of 900 1756 cmd.exe schtasks.exe PID 1756 wrote to memory of 900 1756 cmd.exe schtasks.exe PID 1756 wrote to memory of 900 1756 cmd.exe schtasks.exe PID 2044 wrote to memory of 1840 2044 3acb899b3a2fa5c7901009f212342098.exe WerFault.exe PID 2044 wrote to memory of 1840 2044 3acb899b3a2fa5c7901009f212342098.exe WerFault.exe PID 2044 wrote to memory of 1840 2044 3acb899b3a2fa5c7901009f212342098.exe WerFault.exe PID 2044 wrote to memory of 1840 2044 3acb899b3a2fa5c7901009f212342098.exe WerFault.exe -
outlook_office_path 1 IoCs
Processes:
3acb899b3a2fa5c7901009f212342098.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\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-1-5-21-1214520366-621468234-4062160515-1000\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 use of SetThreadContext
- 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⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 16843⤵
- Program crash
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
MD5766b58e04082802f38c3a53cf10ec996
SHA13b7d2fd4ac6880b1e9d2fede6ea29eee6f9bae8a
SHA256033b9ed9640c97b7fb6f44ddeae6f4c35f4236f8b22e02382536677d008b043e
SHA512d5ae98403984f8808673d4bb2db519cd7c27a6d4eb710f286d7f5a992b714fc99f38e80e6d49bf38309eea0308d30d14ff3f1be099a81587d8215ca5071224f5
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memory/900-55-0x0000000000000000-mapping.dmp
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memory/1308-58-0x000000000039A000-0x00000000003A0000-memory.dmpFilesize
24KB
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memory/1756-54-0x0000000000000000-mapping.dmp
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memory/1840-63-0x0000000000000000-mapping.dmp
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memory/2044-57-0x00000000759F1000-0x00000000759F3000-memory.dmpFilesize
8KB
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memory/2044-56-0x000000000040188B-mapping.dmp
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memory/2044-60-0x0000000000400000-0x0000000000482000-memory.dmpFilesize
520KB
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memory/2044-61-0x0000000000490000-0x0000000000502000-memory.dmpFilesize
456KB
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memory/2044-62-0x0000000000490000-0x0000000000502000-memory.dmpFilesize
456KB