Analysis
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max time kernel
132s -
max time network
151s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
09-03-2023 20:45
Behavioral task
behavioral1
Sample
fb74b1eb454fddb41011ae5b3f343589bf49d4be7e8ced6cbc25d6e9191bd862.doc
Resource
win10-20230220-en
General
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Target
fb74b1eb454fddb41011ae5b3f343589bf49d4be7e8ced6cbc25d6e9191bd862.doc
-
Size
538.3MB
-
MD5
57a46489f02c106569f8cd62ba9f7501
-
SHA1
abb1400ec57cef7d625324261f29e0b226b9cd5b
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SHA256
fb74b1eb454fddb41011ae5b3f343589bf49d4be7e8ced6cbc25d6e9191bd862
-
SHA512
46be9131984820c098888849357a34c9004058e7fd057c2e4b57cbc717133e0fcb45a331954d091019e6661bb1c6d0595cf7bbbcac66e178c0bf4af92456f296
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SSDEEP
3072:2JX29m8QBUoItA/leC6gSJ+2JiclnUOvrRxqmLcHeNJxPkdVdTRcDK6:2EmleC6gSJWclU0RxVLcHe5cdTR
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.
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 4140 2908 regsvr32.exe WINWORD.EXE -
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 4140 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 14 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 2908 WINWORD.EXE 2908 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
regsvr32.exepid process 4140 regsvr32.exe 4140 regsvr32.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
WINWORD.EXEpid process 2908 WINWORD.EXE 2908 WINWORD.EXE 2908 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 2908 WINWORD.EXE 2908 WINWORD.EXE 2908 WINWORD.EXE 2908 WINWORD.EXE 2908 WINWORD.EXE 2908 WINWORD.EXE 2908 WINWORD.EXE 2908 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 2908 wrote to memory of 4140 2908 WINWORD.EXE regsvr32.exe PID 2908 wrote to memory of 4140 2908 WINWORD.EXE regsvr32.exe PID 4140 wrote to memory of 3628 4140 regsvr32.exe regsvr32.exe PID 4140 wrote to memory of 3628 4140 regsvr32.exe regsvr32.exe -
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
-
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\fb74b1eb454fddb41011ae5b3f343589bf49d4be7e8ced6cbc25d6e9191bd862.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:2908 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\214828.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4140 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\BMUzKGfxq\fUSQgByo.dll"3⤵PID:3628
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
531.5MB
MD5f64544cfce0287fdf9062605f884fc54
SHA1bd5470a805762a371d72a05e48ba397442e0a8e6
SHA25683f604c5e5f6856ab2ccfdb732218f87ea0f5704043f5ec384d8fdcc9a85a513
SHA5122d51dfe44a684305075fc847a652ee04f4bac2900a0f3c677b6a6a70be5201a703a3918993fc994107b66167c7268a1b89b5cf8b53c1fa4af11bff38ef29a7e7
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Filesize
816KB
MD56faf46b25e4c5aab93d3654210fb101f
SHA1d97112eb65c1745fed962eee8897db6c1573c7c7
SHA256ca6a127b270d7092f25d1a59eaa6906f210ca661ddc02504aa2d3065a3c20832
SHA512fddfe918baec3329132d6065b5cdd57173250281e6cb181f0256399b562c3593804d664399d16b619b21343a96be2fdc821fda0dd1aa9c405fd6f8ed9d77c59a
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Filesize
531.5MB
MD5f64544cfce0287fdf9062605f884fc54
SHA1bd5470a805762a371d72a05e48ba397442e0a8e6
SHA25683f604c5e5f6856ab2ccfdb732218f87ea0f5704043f5ec384d8fdcc9a85a513
SHA5122d51dfe44a684305075fc847a652ee04f4bac2900a0f3c677b6a6a70be5201a703a3918993fc994107b66167c7268a1b89b5cf8b53c1fa4af11bff38ef29a7e7