Analysis
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max time kernel
137s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
21-03-2023 22:55
Behavioral task
behavioral1
Sample
8694e16966fbae239c4c1789e84b49dc8d220a4aedc3cf5ed50233217dfa370e.doc
Resource
win10v2004-20230220-en
General
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Target
8694e16966fbae239c4c1789e84b49dc8d220a4aedc3cf5ed50233217dfa370e.doc
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Size
266KB
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MD5
05d5a0135a7cf1a2c7f605ca32343498
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SHA1
bd341da3c68510ff8f597a8e2fd8907f3a72d3e7
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SHA256
8694e16966fbae239c4c1789e84b49dc8d220a4aedc3cf5ed50233217dfa370e
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SHA512
67ecc7625cd678d7aba5ef3e98cee5f9b2d07dfde85260f571eec6ad79cf80acf7c5f2fe3aec43ed94c9fbef950270d6ce76d2e3257840208a7bef1811699564
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SSDEEP
3072:QWuQOQXpp1ixQvZ3WFpAWNHXNxyZro+kir/qz5BSA4JYw2rFK9H:QVQ9CSZ0hNH9xy9xr/Y5sA4ivUZ
Malware Config
Extracted
emotet
Epoch4
213.239.212.5:443
129.232.188.93:443
103.43.75.120:443
197.242.150.244:8080
1.234.2.232:8080
110.232.117.186:8080
95.217.221.146:8080
159.89.202.34:443
159.65.88.10:8080
82.223.21.224:8080
169.57.156.166:8080
45.176.232.124:443
45.235.8.30:8080
173.212.193.249:8080
107.170.39.149:8080
119.59.103.152:8080
167.172.199.165:8080
91.207.28.33:8080
185.4.135.165:8080
104.168.155.143:8080
206.189.28.199:8080
79.137.35.198:8080
103.132.242.26:8080
202.129.205.3:8080
103.75.201.2:443
149.56.131.28:8080
5.135.159.50:443
172.105.226.75:8080
201.94.166.162:443
115.68.227.76:8080
164.90.222.65:443
186.194.240.217:443
153.126.146.25:7080
187.63.160.88:80
209.126.85.32:8080
72.15.201.15:8080
153.92.5.27:8080
167.172.253.162:8080
147.139.166.154:8080
163.44.196.120:8080
183.111.227.137:8080
139.59.126.41:443
164.68.99.3:8080
188.44.20.25:443
94.23.45.86:4143
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 1936 3760 regsvr32.exe WINWORD.EXE -
Loads dropped DLL 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 1936 regsvr32.exe 4420 regsvr32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mXnLJzf.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\MqrrxASNFNXxRks\\mXnLJzf.dll\"" regsvr32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 27 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 3760 WINWORD.EXE 3760 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 1936 regsvr32.exe 1936 regsvr32.exe 4420 regsvr32.exe 4420 regsvr32.exe 4420 regsvr32.exe 4420 regsvr32.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 3760 WINWORD.EXE 3760 WINWORD.EXE 3760 WINWORD.EXE 3760 WINWORD.EXE 3760 WINWORD.EXE 3760 WINWORD.EXE 3760 WINWORD.EXE 3760 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 3760 wrote to memory of 1936 3760 WINWORD.EXE regsvr32.exe PID 3760 wrote to memory of 1936 3760 WINWORD.EXE regsvr32.exe PID 1936 wrote to memory of 4420 1936 regsvr32.exe regsvr32.exe PID 1936 wrote to memory of 4420 1936 regsvr32.exe regsvr32.exe
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\8694e16966fbae239c4c1789e84b49dc8d220a4aedc3cf5ed50233217dfa370e.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3760 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\235610.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\MqrrxASNFNXxRks\mXnLJzf.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:4420
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
516.9MB
MD563ab0ab1ed4483ad09ce0c0402acb55e
SHA1d7185996c898eedb205467e6b6f73030c2baf5ce
SHA256f2616d392cbea6cb86883ce42b7ed0856823c2812e49b334346d7aec8a950e5c
SHA512e1b6425ff2bf945a06bf1a6a6509bc43ae583cdd4f91abdd3aa5c8ce66ee2c7da7f2b5128fd6e900aec0f1f411390df2fdbafd51ccda07d89a0e1ec3ab853448
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Filesize
516.9MB
MD563ab0ab1ed4483ad09ce0c0402acb55e
SHA1d7185996c898eedb205467e6b6f73030c2baf5ce
SHA256f2616d392cbea6cb86883ce42b7ed0856823c2812e49b334346d7aec8a950e5c
SHA512e1b6425ff2bf945a06bf1a6a6509bc43ae583cdd4f91abdd3aa5c8ce66ee2c7da7f2b5128fd6e900aec0f1f411390df2fdbafd51ccda07d89a0e1ec3ab853448
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Filesize
956KB
MD57a8514e64a4fc18c49e6b99a74809f53
SHA148eaaa9149d421dd357a4c9bbf010b7476955752
SHA256810bbe720d6286bccae93e9cba11adbb55b1900ac18799ed0dc36508ba2353e3
SHA5128225ba0d1d28e1e549bb47e24b1e1eb04b878f188c7e19331ac32db76f9736e377fcfa46d8ad993f0fbf88f5cbcd5674519a7556e86c12d9a13cd81d7deb53f4
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Filesize
516.9MB
MD563ab0ab1ed4483ad09ce0c0402acb55e
SHA1d7185996c898eedb205467e6b6f73030c2baf5ce
SHA256f2616d392cbea6cb86883ce42b7ed0856823c2812e49b334346d7aec8a950e5c
SHA512e1b6425ff2bf945a06bf1a6a6509bc43ae583cdd4f91abdd3aa5c8ce66ee2c7da7f2b5128fd6e900aec0f1f411390df2fdbafd51ccda07d89a0e1ec3ab853448