Analysis
- max time kernel
163s - max time network
191s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
15/03/2022, 09:05
General
- Target MES-535.xlsm
- Size 73KB
- Sample220315-k187eahdd8
- SHA256 c8039b4bf3530799f31a12e0cf4762ef11c86e8df796a5a865365754c0d376bd
Malware Config
Extracted
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xlm4.0
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xlm40.dropper
https://www.ankeoman.com/undercons_files/l88ETG/
Extracted
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emotet
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Epoch5
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51.75.33.122:443
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186.250.48.5:80
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168.119.39.118:443
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207.148.81.119:8080
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194.9.172.107:8080
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139.196.72.155:8080
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78.47.204.80:443
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159.69.237.188:443
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45.71.195.104:8080
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54.37.106.167:8080
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185.168.130.138:443
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37.44.244.177:8080
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185.184.25.78:8080
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185.148.168.15:8080
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128.199.192.135:8080
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37.59.209.141:8080
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103.41.204.169:8080
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185.148.168.220:8080
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103.42.58.120:7080
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78.46.73.125:443
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.
- Downloads MZ/PE file
- Loads dropped DLL 2 IoCs
- Drops file in System32 directory 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
- Modifies data under HKEY_USERS 1 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of SetWindowsHookEx 12 IoCs
- Suspicious use of WriteProcessMemory 6 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\MES-535.xlsm"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\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\ujg.dll2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exeC:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Dmxolqkeulpa\amxu.ggu"3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
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-
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s BITS1⤵
- Modifies data under HKEY_USERS
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2676-138-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-149-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-135-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-137-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-136-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-130-0x00007FFC62E30000-0x00007FFC62E40000-memory.dmp
memory/2676-139-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-140-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-141-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-142-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-143-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-144-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-145-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-146-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-134-0x00007FFC62E30000-0x00007FFC62E40000-memory.dmp
memory/2676-147-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-131-0x00007FFC62E30000-0x00007FFC62E40000-memory.dmp
memory/2676-132-0x00007FFC62E30000-0x00007FFC62E40000-memory.dmp
memory/2676-148-0x00007FFCA2DB0000-0x00007FFCA2FA5000-memory.dmp
memory/2676-133-0x00007FFC62E30000-0x00007FFC62E40000-memory.dmp
memory/3388-152-0x00000175EE4B0000-0x00000175EE4B4000-memory.dmp
memory/3388-151-0x00000175EC0C0000-0x00000175EC0D0000-memory.dmp
memory/3388-150-0x00000175EBE90000-0x00000175EBEA0000-memory.dmp
memory/3388-162-0x00000175EE780000-0x00000175EE784000-memory.dmp
memory/3388-163-0x00000175EE760000-0x00000175EE761000-memory.dmp
memory/3388-164-0x00000175EE4E0000-0x00000175EE4E4000-memory.dmp
memory/3388-165-0x00000175EE4D0000-0x00000175EE4D1000-memory.dmp
memory/3388-166-0x00000175EE4D0000-0x00000175EE4D4000-memory.dmp
memory/3388-167-0x00000175EC1D0000-0x00000175EC1D1000-memory.dmp
memory/4504-159-0x00000000023E0000-0x0000000002407000-memory.dmp
memory/4576-155-0x0000000002DE0000-0x0000000002E07000-memory.dmp