Analysis
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max time kernel
100s -
max time network
134s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
21-03-2023 23:11
Behavioral task
behavioral1
Sample
a14a4a807c275b98eff724f72358fcac4790d9bad735667efb271ad339fcddac.doc
Resource
win10-20230220-en
General
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Target
a14a4a807c275b98eff724f72358fcac4790d9bad735667efb271ad339fcddac.doc
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Size
207KB
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MD5
e2b2e81d94600338e279924278a3e0c4
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SHA1
1ea91cf8ae8087f1c81c012a4346fc8079720a3e
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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 4044 3540 regsvr32.exe WINWORD.EXE -
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 4044 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\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 7 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 3540 WINWORD.EXE 3540 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
regsvr32.exepid process 4044 regsvr32.exe 4044 regsvr32.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
WINWORD.EXEpid process 3540 WINWORD.EXE 3540 WINWORD.EXE 3540 WINWORD.EXE 3540 WINWORD.EXE 3540 WINWORD.EXE 3540 WINWORD.EXE 3540 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 3540 wrote to memory of 4044 3540 WINWORD.EXE regsvr32.exe PID 3540 wrote to memory of 4044 3540 WINWORD.EXE regsvr32.exe PID 4044 wrote to memory of 1008 4044 regsvr32.exe regsvr32.exe PID 4044 wrote to memory of 1008 4044 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
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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\a14a4a807c275b98eff724f72358fcac4790d9bad735667efb271ad339fcddac.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:3540 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\001146.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4044 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\MBLLrCUmVZuz\ddyVoXZVRHTjs.dll"3⤵PID:1008
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
521.9MB
MD5853b6005de754974d71396271700bf31
SHA11cba641c88048110c024c13c2da9af6d551cd1da
SHA2565a5e279c4a1af85bc0708b92c7a1b774e8a9e065e14ab4a14bffb8fa8c2de27b
SHA512aaa8eaf7cae81bd4179c053105612037afd9626d3b7b4f73bd0040502571b42e057d900f94cef7e1f968e576eea9b56101b92628ad903055299906c46d2277ac
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Filesize
961KB
MD52ff11d2185b0f90388a4b175a88998ab
SHA1f9528e1f5236b7d92db0d6ce2603593a53d4a29c
SHA2561386cd2c961321d4de11e5ca019e1a2a82c65209522e423b6fb42c94ed06d78f
SHA5127fcad8e33d328584b90a0fab5734ec2ddd9b565c5ef6711f9130bd6560c35bd12404f1608ae6d4b3e614a882756294ceeac81928c74f99c0e0e94a41dec5b2e2
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Filesize
521.9MB
MD5853b6005de754974d71396271700bf31
SHA11cba641c88048110c024c13c2da9af6d551cd1da
SHA2565a5e279c4a1af85bc0708b92c7a1b774e8a9e065e14ab4a14bffb8fa8c2de27b
SHA512aaa8eaf7cae81bd4179c053105612037afd9626d3b7b4f73bd0040502571b42e057d900f94cef7e1f968e576eea9b56101b92628ad903055299906c46d2277ac