Analysis
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max time kernel
147s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-ja -
resource tags
arch:x64arch:x86image:win10v2004-20230220-jalocale:ja-jpos:windows10-2004-x64systemwindows -
submitted
08/03/2023, 05:35
Behavioral task
behavioral1
Sample
2023-03-08_0921.doc
Resource
win7-20230220-ja
Behavioral task
behavioral2
Sample
2023-03-08_0921.doc
Resource
win10v2004-20230220-ja
General
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Target
2023-03-08_0921.doc
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Size
543.3MB
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MD5
b13b243434b3d4b186026fa3d3fdba9a
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SHA1
c11e836318755c06db5a18c54892e3cccf279da8
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SHA256
3fd0964eb74075e3431e27920ccdb2d6edffa8b8c2dac307a20f183d72e0cbdd
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SHA512
12564274a8b44887b8cce27abb8e5778e07514beaf3bd11b70bf8f779f912f8a584c555c90c49727868978a07c97c408a699a1a812558fb109954e660f3129e5
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SSDEEP
6144:xPn4VZXbatu7MDogsDkHS50LdfcGcbz1f5M9KTFrMpSlMK3Ru+Q28:xP4PbNMkgg3Ru+x
Malware Config
Extracted
emotet
Epoch4
129.232.188.93:443
164.90.222.65:443
159.65.88.10:8080
172.105.226.75:8080
115.68.227.76:8080
187.63.160.88:80
169.57.156.166:8080
185.4.135.165:8080
153.126.146.25:7080
197.242.150.244:8080
139.59.126.41:443
186.194.240.217:443
103.132.242.26:8080
206.189.28.199:8080
163.44.196.120:8080
95.217.221.146:8080
159.89.202.34:443
119.59.103.152:8080
183.111.227.137:8080
201.94.166.162:443
103.75.201.2:443
149.56.131.28:8080
79.137.35.198:8080
5.135.159.50:443
66.228.32.31:7080
91.121.146.47:8080
153.92.5.27:8080
45.235.8.30:8080
72.15.201.15:8080
107.170.39.149:8080
45.176.232.124:443
82.223.21.224:8080
167.172.199.165:8080
213.239.212.5:443
202.129.205.3:8080
94.23.45.86:4143
147.139.166.154:8080
167.172.253.162:8080
91.207.28.33:8080
188.44.20.25:443
104.168.155.143:8080
110.232.117.186:8080
164.68.99.3:8080
1.234.2.232:8080
173.212.193.249:8080
182.162.143.56:443
160.16.142.56:8080
101.50.0.91:8080
103.43.75.120:443
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.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 4564 1456 regsvr32.exe 75 -
Loads dropped DLL 2 IoCs
pid Process 4564 regsvr32.exe 1440 regsvr32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ibEQZMfudmVpOWT.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\BkbeDQJV\\ibEQZMfudmVpOWT.dll\"" regsvr32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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.
description flow ioc HTTP User-Agent header 37 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 1456 WINWORD.EXE 1456 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4564 regsvr32.exe 4564 regsvr32.exe 1440 regsvr32.exe 1440 regsvr32.exe 1440 regsvr32.exe 1440 regsvr32.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1456 WINWORD.EXE 1456 WINWORD.EXE 1456 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 1456 WINWORD.EXE 1456 WINWORD.EXE 1456 WINWORD.EXE 1456 WINWORD.EXE 1456 WINWORD.EXE 1456 WINWORD.EXE 1456 WINWORD.EXE 1456 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1456 wrote to memory of 4564 1456 WINWORD.EXE 92 PID 1456 wrote to memory of 4564 1456 WINWORD.EXE 92 PID 4564 wrote to memory of 1440 4564 regsvr32.exe 95 PID 4564 wrote to memory of 1440 4564 regsvr32.exe 95
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\2023-03-08_0921.doc" /o ""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
PID:1456 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\063715.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4564 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\BkbeDQJV\ibEQZMfudmVpOWT.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:1440
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
512.7MB
MD516340a1a8a8e16942901cb79b5827c6c
SHA1c8d280faf85d982ac20dc30262b5ff815b97f54f
SHA256bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e
SHA51224df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7
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Filesize
512.7MB
MD516340a1a8a8e16942901cb79b5827c6c
SHA1c8d280faf85d982ac20dc30262b5ff815b97f54f
SHA256bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e
SHA51224df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7
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Filesize
848KB
MD548d4120b1b05af4a03542c5b281143aa
SHA1131de646e85d0ac903225c2f2f4ee2c18e11ccd5
SHA256091c267d3fc0974acfa3fa3ba04ceedcbef7336e399d22a2a9361cac08ba0b92
SHA512c6ff64f32482c622191bac41c0ea5c429621bc79b39e6cb6de96d56f6d07daa9cf6c25ba4a260051b55e700c23b9e91aae6e3cf63975d122d40e692368bdddd4
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Filesize
512.7MB
MD516340a1a8a8e16942901cb79b5827c6c
SHA1c8d280faf85d982ac20dc30262b5ff815b97f54f
SHA256bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e
SHA51224df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7