Analysis
- max time kernel
162s - max time network
193s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
15/03/2022, 09:28
General
- Target documento_2742416.xlsm
- Size 73KB
- Sample220315-lfcs5sbdej
- SHA256 8fbc12816beeabc547e49abc668d772f1771498ad6a3739f4cd417c2aa55ebfe
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.
- suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
- 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 13 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\documento_2742416.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\Bfugnjgjbljpv\exssoryogkxnjcq.hzb"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
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Downloads
memory/456-152-0x0000000002CF0000-0x0000000002D17000-memory.dmp
memory/744-140-0x00007FFABDB70000-0x00007FFABDD65000-memory.dmp
memory/744-133-0x00007FFA7DBF0000-0x00007FFA7DC00000-memory.dmp
memory/744-136-0x00007FFABDB70000-0x00007FFABDD65000-memory.dmp
memory/744-138-0x00007FFABDB70000-0x00007FFABDD65000-memory.dmp
memory/744-137-0x00007FFABDB70000-0x00007FFABDD65000-memory.dmp
memory/744-139-0x00007FFABDB70000-0x00007FFABDD65000-memory.dmp
memory/744-130-0x00007FFA7DBF0000-0x00007FFA7DC00000-memory.dmp
memory/744-141-0x00007FFABDB70000-0x00007FFABDD65000-memory.dmp
memory/744-142-0x00007FFABDB70000-0x00007FFABDD65000-memory.dmp
memory/744-132-0x00007FFA7DBF0000-0x00007FFA7DC00000-memory.dmp
memory/744-131-0x00007FFA7DBF0000-0x00007FFA7DC00000-memory.dmp
memory/744-135-0x00007FFABDB70000-0x00007FFABDD65000-memory.dmp
memory/744-134-0x00007FFA7DBF0000-0x00007FFA7DC00000-memory.dmp
memory/756-145-0x00000177D51A0000-0x00000177D51A4000-memory.dmp
memory/756-144-0x00000177D4DE0000-0x00000177D4DF0000-memory.dmp
memory/756-143-0x00000177D4D80000-0x00000177D4D90000-memory.dmp
memory/3156-148-0x0000000002AD0000-0x0000000002AF7000-memory.dmp