Analysis
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max time kernel
140s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
23/03/2023, 05:50
Behavioral task
behavioral1
Sample
payment.doc
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
payment.doc
Resource
win10v2004-20230220-en
General
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Target
payment.doc
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Size
548.2MB
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MD5
078be6c1c7e37936317cfe515046ff8d
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SHA1
6591f514e4470595b660649368d59a50cb70b03c
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SHA256
dec0cb56b8fde11f21cab50f55e08e29e89854a6e05a5d3b940c860589c56117
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SHA512
d1f30293779b644e43213edf3d854bcda725a10bc1abadad1bed02abb248a5660c902f818276834334cbd9592ec541e4d260b33c1f6a447dafb8591fad3f793d
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SSDEEP
3072:brrCtKZF4eqZ627NHRxMvOwvzpl+vk6jZc:5F4eqYwHMvfvzpKk6Nc
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.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 1688 3992 regsvr32.exe 83 -
Loads dropped DLL 2 IoCs
pid Process 1688 regsvr32.exe 4928 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\Ckga.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\VTrFVNrQ\\Ckga.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 5 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 32 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 34 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 35 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 56 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 62 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 3992 WINWORD.EXE 3992 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1688 regsvr32.exe 1688 regsvr32.exe 4928 regsvr32.exe 4928 regsvr32.exe 4928 regsvr32.exe 4928 regsvr32.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3992 WINWORD.EXE 3992 WINWORD.EXE 3992 WINWORD.EXE 3992 WINWORD.EXE 3992 WINWORD.EXE 3992 WINWORD.EXE 3992 WINWORD.EXE 3992 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3992 wrote to memory of 1688 3992 WINWORD.EXE 87 PID 3992 wrote to memory of 1688 3992 WINWORD.EXE 87 PID 1688 wrote to memory of 4928 1688 regsvr32.exe 91 PID 1688 wrote to memory of 4928 1688 regsvr32.exe 91
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\payment.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:3992 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\065109.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\VTrFVNrQ\Ckga.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:4928
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-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
507.9MB
MD527f882a2b795abfae8f33440afcd3ad4
SHA12940bdb5f4f91fcc52ed20a460c214fd83171339
SHA256c569ceb7fd1b5d5d860807dc12b8d71621c186bf8668bc5795b8e430db474f47
SHA5124ead7b5fef3c6edf6d19164bcfddbb475e645ea08b4a2c458457ba8367478683766fbfc1f076b66ab80c1d2096e08dff97ae4b17d10539df02951f83344c0b33
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Filesize
507.9MB
MD527f882a2b795abfae8f33440afcd3ad4
SHA12940bdb5f4f91fcc52ed20a460c214fd83171339
SHA256c569ceb7fd1b5d5d860807dc12b8d71621c186bf8668bc5795b8e430db474f47
SHA5124ead7b5fef3c6edf6d19164bcfddbb475e645ea08b4a2c458457ba8367478683766fbfc1f076b66ab80c1d2096e08dff97ae4b17d10539df02951f83344c0b33
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Filesize
947KB
MD59b7c0b1c11257c563b2aa292534add2d
SHA1b0df42305bf54f7653870904b9cb9d9b70ab36d1
SHA256ca2f523dcc748f244a3a290730d8638710f3fba9a31ca27731ad98314d31d65b
SHA512fcfe09ba49b3335b302f6b87623ff1648340c23397ccb641d2576e359beb7e45672ec9978ab34264983c6e127a5fbd588149c9d89666923bb7cd2bf409cabf2e
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Filesize
507.9MB
MD527f882a2b795abfae8f33440afcd3ad4
SHA12940bdb5f4f91fcc52ed20a460c214fd83171339
SHA256c569ceb7fd1b5d5d860807dc12b8d71621c186bf8668bc5795b8e430db474f47
SHA5124ead7b5fef3c6edf6d19164bcfddbb475e645ea08b4a2c458457ba8367478683766fbfc1f076b66ab80c1d2096e08dff97ae4b17d10539df02951f83344c0b33