Analysis
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max time kernel
117s -
max time network
141s -
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 23:06
Behavioral task
behavioral1
Sample
Kk-echo.doc
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Kk-echo.doc
Resource
win10v2004-20230220-en
General
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Target
Kk-echo.doc
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Size
207KB
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MD5
e2b2e81d94600338e279924278a3e0c4
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SHA1
1ea91cf8ae8087f1c81c012a4346fc8079720a3e
-
SHA256
a14a4a807c275b98eff724f72358fcac4790d9bad735667efb271ad339fcddac
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SHA512
f4ce8868b3cf604b78ccb6c9bcf00ba2078d63272aab6d327e78df2e19fb533c436df9b6f9437cde0a4a62ef6eeed966f6a56c7803c2f603642c750c6aebc47c
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SSDEEP
3072:qjaqgJKlkOLyO1k7df0r56kgJOpI8wffI/0GQFrjhfcl4kbo:q7kOLd1k7df0rMkgJb8wfg/Wrebbo
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 460 2192 regsvr32.exe WINWORD.EXE -
Loads dropped DLL 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 460 regsvr32.exe 2112 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\zXoHiPUfXLiLjlVa.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\JdAnC\\zXoHiPUfXLiLjlVa.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 53 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 2192 WINWORD.EXE 2192 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 460 regsvr32.exe 460 regsvr32.exe 2112 regsvr32.exe 2112 regsvr32.exe 2112 regsvr32.exe 2112 regsvr32.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 2192 WINWORD.EXE 2192 WINWORD.EXE 2192 WINWORD.EXE 2192 WINWORD.EXE 2192 WINWORD.EXE 2192 WINWORD.EXE 2192 WINWORD.EXE 2192 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 2192 wrote to memory of 460 2192 WINWORD.EXE regsvr32.exe PID 2192 wrote to memory of 460 2192 WINWORD.EXE regsvr32.exe PID 460 wrote to memory of 2112 460 regsvr32.exe regsvr32.exe PID 460 wrote to memory of 2112 460 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\Kk-echo.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:2192 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\000703.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:460 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\JdAnC\zXoHiPUfXLiLjlVa.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:2112
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
521.9MB
MD5853b6005de754974d71396271700bf31
SHA11cba641c88048110c024c13c2da9af6d551cd1da
SHA2565a5e279c4a1af85bc0708b92c7a1b774e8a9e065e14ab4a14bffb8fa8c2de27b
SHA512aaa8eaf7cae81bd4179c053105612037afd9626d3b7b4f73bd0040502571b42e057d900f94cef7e1f968e576eea9b56101b92628ad903055299906c46d2277ac
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Filesize
521.9MB
MD5853b6005de754974d71396271700bf31
SHA11cba641c88048110c024c13c2da9af6d551cd1da
SHA2565a5e279c4a1af85bc0708b92c7a1b774e8a9e065e14ab4a14bffb8fa8c2de27b
SHA512aaa8eaf7cae81bd4179c053105612037afd9626d3b7b4f73bd0040502571b42e057d900f94cef7e1f968e576eea9b56101b92628ad903055299906c46d2277ac
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Filesize
961KB
MD5ac4f4455a8969a9cd590b93beedeb809
SHA117ea0e7f43ca82575a1fd99e9302de7606f23a8a
SHA2564650153b81b87beaed3e5f7cf2208afbdc3e1198e5bf005e57e98188e1aa5a49
SHA5124f87154f9c76440c2df9700f51ec6d9a205b18f79c45cfcdd678e7864aaf9de3125a35e10dabb24f788bec2c9f891c306cc37924bf19e34c62f9b17f210c9431
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Filesize
521.9MB
MD5853b6005de754974d71396271700bf31
SHA11cba641c88048110c024c13c2da9af6d551cd1da
SHA2565a5e279c4a1af85bc0708b92c7a1b774e8a9e065e14ab4a14bffb8fa8c2de27b
SHA512aaa8eaf7cae81bd4179c053105612037afd9626d3b7b4f73bd0040502571b42e057d900f94cef7e1f968e576eea9b56101b92628ad903055299906c46d2277ac