Analysis
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max time kernel
595s -
max time network
460s -
platform
windows10-1703_x64 -
resource
win10-20230220-ja -
resource tags
arch:x64arch:x86image:win10-20230220-jalocale:ja-jpos:windows10-1703-x64systemwindows -
submitted
08/03/2023, 05:42
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 2 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 3328 3692 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 1540 3692 regsvr32.exe 66 -
Loads dropped DLL 3 IoCs
pid Process 3328 regsvr32.exe 3328 regsvr32.exe 1540 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 7 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 29 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 3692 WINWORD.EXE 3692 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3328 regsvr32.exe 3328 regsvr32.exe 1540 regsvr32.exe 1540 regsvr32.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 19 IoCs
pid Process 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE 3692 WINWORD.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3692 wrote to memory of 3328 3692 WINWORD.EXE 69 PID 3692 wrote to memory of 3328 3692 WINWORD.EXE 69 PID 3328 wrote to memory of 2528 3328 regsvr32.exe 70 PID 3328 wrote to memory of 2528 3328 regsvr32.exe 70 PID 3692 wrote to memory of 1540 3692 WINWORD.EXE 72 PID 3692 wrote to memory of 1540 3692 WINWORD.EXE 72 PID 1540 wrote to memory of 4340 1540 regsvr32.exe 73 PID 1540 wrote to memory of 4340 1540 regsvr32.exe 73 -
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.
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Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
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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\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:3692 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\064347.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3328 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\WBIsNtAywqSSUM\zZHjumimnf.dll"3⤵PID:2528
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C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\064705.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1540 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\KMiMZSlCouWbJNZEt\wpfrEiTEfPkEu.dll"3⤵PID:4340
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C:\Windows\System32\IME\SHARED\imebroker.exeC:\Windows\System32\IME\SHARED\imebroker.exe -Embedding1⤵PID:4084
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
848KB
MD548d4120b1b05af4a03542c5b281143aa
SHA1131de646e85d0ac903225c2f2f4ee2c18e11ccd5
SHA256091c267d3fc0974acfa3fa3ba04ceedcbef7336e399d22a2a9361cac08ba0b92
SHA512c6ff64f32482c622191bac41c0ea5c429621bc79b39e6cb6de96d56f6d07daa9cf6c25ba4a260051b55e700c23b9e91aae6e3cf63975d122d40e692368bdddd4
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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
12KB
MD5fddc14f6c85db1a42bc2feaa7bdad20e
SHA10b050bc79058b8ad6b43d26eb03ae9b5fb70fa49
SHA256877391ccbd6efc606705c3af0b23a5d8cc8650bd4d4ecf4ae9ebbc4cecb60240
SHA5125f64f07409dd484ecac07392b6295a2453b9c113488a5bef209f3de8ec48e899e1bc12c4c0652690be494a177d2a0c31f6506774519250e25a90d6b2d93a17cf
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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
512.7MB
MD516340a1a8a8e16942901cb79b5827c6c
SHA1c8d280faf85d982ac20dc30262b5ff815b97f54f
SHA256bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e
SHA51224df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7