Analysis
- max time kernel
100s - max time network
134s - platform
windows10-1703_x64 - resource
win10-20230220-en - resource tags
- submitted
21/03/2023, 22:38
General
- Target f52ad46c5e2d06933ee15c41fa36cad03907bca87245c2fffade8d60d3f9e116.doc
- Size 257KB
- Sample230321-2kvshsde46
- SHA256 f52ad46c5e2d06933ee15c41fa36cad03907bca87245c2fffade8d60d3f9e116
Malware Config
Extracted
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emotet
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Epoch4
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213.239.212.5:443
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129.232.188.93:443
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103.43.75.120:443
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197.242.150.244:8080
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1.234.2.232:8080
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110.232.117.186:8080
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95.217.221.146:8080
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159.89.202.34:443
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159.65.88.10:8080
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82.223.21.224:8080
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169.57.156.166:8080
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45.176.232.124:443
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45.235.8.30:8080
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173.212.193.249:8080
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107.170.39.149:8080
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119.59.103.152:8080
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167.172.199.165:8080
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91.207.28.33:8080
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185.4.135.165:8080
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104.168.155.143:8080
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.
- Loads dropped DLL 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
- Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
- Suspicious behavior: AddClipboardFormatListener 2 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of SetWindowsHookEx 8 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\f52ad46c5e2d06933ee15c41fa36cad03907bca87245c2fffade8d60d3f9e116.doc" /o ""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\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\233902.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\ZreWpaHcBrnEf\KLFfoXbvzFgf.dll"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
233902.tmp
233903.zip
233902.tmp
memory/4124-119-0x00007FFA3FF30000-0x00007FFA3FF40000-memory.dmp
memory/4124-122-0x00007FFA3C4D0000-0x00007FFA3C4E0000-memory.dmp
memory/4124-123-0x00007FFA3C4D0000-0x00007FFA3C4E0000-memory.dmp
memory/4124-118-0x00007FFA3FF30000-0x00007FFA3FF40000-memory.dmp
memory/4124-117-0x00007FFA3FF30000-0x00007FFA3FF40000-memory.dmp
memory/4124-116-0x00007FFA3FF30000-0x00007FFA3FF40000-memory.dmp
memory/4124-419-0x00007FFA3FF30000-0x00007FFA3FF40000-memory.dmp
memory/4124-420-0x00007FFA3FF30000-0x00007FFA3FF40000-memory.dmp
memory/4124-421-0x00007FFA3FF30000-0x00007FFA3FF40000-memory.dmp
memory/4124-422-0x00007FFA3FF30000-0x00007FFA3FF40000-memory.dmp
memory/4952-315-0x0000000002110000-0x000000000216A000-memory.dmp
memory/4952-325-0x0000000000660000-0x0000000000661000-memory.dmp