Analysis
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max time kernel
142s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
08/03/2023, 09:08
Behavioral task
behavioral1
Sample
Rech.doc
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Rech.doc
Resource
win10v2004-20230220-en
General
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Target
Rech.doc
-
Size
544.3MB
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MD5
03a4b5b411f8705e8f20b3e994bae110
-
SHA1
778e6b3a2fc573ce19c7a7224f4bd4b304c55472
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SHA256
de8081cfbb09b591530ae0d10a274e5c308e076f79512323b5c2d5dc590c4498
-
SHA512
1f1c4abfa9ac5e07f392e5c57c282730210fc6adb5f3960e37fc8e2bbaa92d731086dade7d8bf4e33de7c8d4c1800b3a1a1dc4e5a6b461dd581bac0093c15b25
-
SSDEEP
6144:xPn4VZXbatu7MDogsDkHS50LdfcGcbz1f5M9KTFrMpSlMK3Ru+Q28:xP4PbNMkgg3Ru+x
Malware Config
Extracted
emotet
Epoch4
129.232.188.93:443
164.90.222.65:443
159.65.88.10:8080
172.105.226.75:8080
115.68.227.76:8080
187.63.160.88:80
169.57.156.166:8080
185.4.135.165:8080
153.126.146.25:7080
197.242.150.244:8080
139.59.126.41:443
186.194.240.217:443
103.132.242.26:8080
206.189.28.199:8080
163.44.196.120:8080
95.217.221.146:8080
159.89.202.34:443
119.59.103.152:8080
183.111.227.137:8080
201.94.166.162:443
103.75.201.2:443
149.56.131.28:8080
79.137.35.198:8080
5.135.159.50:443
66.228.32.31:7080
91.121.146.47:8080
153.92.5.27:8080
45.235.8.30:8080
72.15.201.15:8080
107.170.39.149:8080
45.176.232.124:443
82.223.21.224:8080
167.172.199.165:8080
213.239.212.5:443
202.129.205.3:8080
94.23.45.86:4143
147.139.166.154:8080
167.172.253.162:8080
91.207.28.33:8080
188.44.20.25:443
104.168.155.143:8080
110.232.117.186:8080
164.68.99.3:8080
1.234.2.232:8080
173.212.193.249:8080
182.162.143.56:443
160.16.142.56:8080
101.50.0.91:8080
103.43.75.120:443
Signatures
-
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 4092 1900 regsvr32.exe 86 -
Loads dropped DLL 2 IoCs
pid Process 4092 regsvr32.exe 1756 regsvr32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FwmvqT.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\KbOss\\FwmvqT.dll\"" regsvr32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 32 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 1900 WINWORD.EXE 1900 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4092 regsvr32.exe 4092 regsvr32.exe 1756 regsvr32.exe 1756 regsvr32.exe 1756 regsvr32.exe 1756 regsvr32.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1900 WINWORD.EXE 1900 WINWORD.EXE 1900 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 1900 WINWORD.EXE 1900 WINWORD.EXE 1900 WINWORD.EXE 1900 WINWORD.EXE 1900 WINWORD.EXE 1900 WINWORD.EXE 1900 WINWORD.EXE 1900 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1900 wrote to memory of 4092 1900 WINWORD.EXE 92 PID 1900 wrote to memory of 4092 1900 WINWORD.EXE 92 PID 4092 wrote to memory of 1756 4092 regsvr32.exe 94 PID 4092 wrote to memory of 1756 4092 regsvr32.exe 94
Processes
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Rech.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1900 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\100859.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4092 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\KbOss\FwmvqT.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:1756
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
543.7MB
MD510d06673f1cdeb8164c37974f22af5e6
SHA12410d65e5d971d4793e26601ae79aabc3b780811
SHA2560ea8aa916237b8c56266eaa242153eff8f19dd85ade9d6bc0c3c065909415325
SHA512b4142923c6a1c37208f95e59cfb09b4ff885503b0d115a77bf38bc957ee8931b24aeef1895f8e4ff0f7fe7ad3c1eabe3a3c21e9c2b83794a5950ee4f83ce060b
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Filesize
543.7MB
MD510d06673f1cdeb8164c37974f22af5e6
SHA12410d65e5d971d4793e26601ae79aabc3b780811
SHA2560ea8aa916237b8c56266eaa242153eff8f19dd85ade9d6bc0c3c065909415325
SHA512b4142923c6a1c37208f95e59cfb09b4ff885503b0d115a77bf38bc957ee8931b24aeef1895f8e4ff0f7fe7ad3c1eabe3a3c21e9c2b83794a5950ee4f83ce060b
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Filesize
879KB
MD57d74461b5fd70928dc244547869f8244
SHA10a69beecdd517a2b9e618147856367fceae23bd4
SHA256335051721cda978a48a4e088a1d1cdf3c982a46a64d438fc153b187eef2eb86b
SHA5124f7c40b88e1abfc258d3a8ae620b1c70c47996f57041d39435f32dcbcc7d318dbc48ca41262a2604dd468db15a30532edab8358b5dc8ee8b1f5f16f02a7d20eb
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Filesize
543.7MB
MD510d06673f1cdeb8164c37974f22af5e6
SHA12410d65e5d971d4793e26601ae79aabc3b780811
SHA2560ea8aa916237b8c56266eaa242153eff8f19dd85ade9d6bc0c3c065909415325
SHA512b4142923c6a1c37208f95e59cfb09b4ff885503b0d115a77bf38bc957ee8931b24aeef1895f8e4ff0f7fe7ad3c1eabe3a3c21e9c2b83794a5950ee4f83ce060b