Analysis
- max time kernel
148s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
16/03/2022, 03:48
General
- Target 2297187961.xlsm
- Size 30KB
- Sample220316-ecslvsfegm
- SHA256 f46e8a34de673a2f5d63a35e30e4ff564e53632937e652c58c6b4324640cfdbb
Malware Config
Extracted
-
xlm4.0
-
xlm40.dropper
http://henrysfreshroast.com/6cc4ts0bkrOlXq/
Extracted
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emotet
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Epoch5
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165.22.61.235:443
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121.78.112.42:8080
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216.10.251.121:8080
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195.77.239.39:8080
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195.154.146.35:443
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68.183.93.250:443
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139.196.72.155:8080
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194.9.172.107:8080
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196.44.98.190:8080
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128.199.192.135:8080
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5.56.132.177:8080
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78.46.73.125:443
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87.106.97.83:7080
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66.42.57.149:443
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37.44.244.177:8080
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190.90.233.66:443
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203.153.216.46:443
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207.148.81.119:8080
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103.41.204.169:8080
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104.131.62.48:8080
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
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SetWindowsHookEx 12 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\2297187961.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\rfs.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\Xiuuflzi\sbqgyzy.tkz"3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
-
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1564-140-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-142-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-135-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-136-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-137-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-138-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-139-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-130-0x00007FFF598D0000-0x00007FFF598E0000-memory.dmp
memory/1564-141-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-134-0x00007FFF598D0000-0x00007FFF598E0000-memory.dmp
memory/1564-143-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-145-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-144-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-146-0x00007FFF99850000-0x00007FFF99A45000-memory.dmp
memory/1564-133-0x00007FFF598D0000-0x00007FFF598E0000-memory.dmp
memory/1564-132-0x00007FFF598D0000-0x00007FFF598E0000-memory.dmp
memory/1564-131-0x00007FFF598D0000-0x00007FFF598E0000-memory.dmp
memory/2260-149-0x0000000002ED0000-0x0000000002EF7000-memory.dmp
memory/4940-153-0x0000000000DF0000-0x0000000000E17000-memory.dmp