Analysis
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max time kernel
105s -
max time network
148s -
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 23:32
Behavioral task
behavioral1
Sample
ef4f00ef898af4684313869d9a68fe96701e3341e5f94172374800484f9d6f25.doc
Resource
win10-20230220-en
General
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Target
ef4f00ef898af4684313869d9a68fe96701e3341e5f94172374800484f9d6f25.doc
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Size
253KB
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MD5
703517ce071eb9ed6d831ff06319a1d5
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SHA1
2e3481ba985e4e6f82714c4723e02b90814db812
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SHA256
ef4f00ef898af4684313869d9a68fe96701e3341e5f94172374800484f9d6f25
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SHA512
bba9ba78c3c12918f0f8bbc5d73f680e78baa5505487a3d00e9bd104855fa253016c50282391013e9f80231ce227b120fa2d32aab6bdfec687c5a2022e071219
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SSDEEP
3072:Gw2e6pQqKpXdEbwde5lgfOiqeNn1+o/x0Q6aUmDSKSNLnIiPf8xMwH99P:GwmXoClPzKp0Q6aUmWKSNTIiPkxPH9
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 1848 3272 regsvr32.exe WINWORD.EXE -
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 1848 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 7 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 3272 WINWORD.EXE 3272 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
regsvr32.exepid process 1848 regsvr32.exe 1848 regsvr32.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 3272 WINWORD.EXE 3272 WINWORD.EXE 3272 WINWORD.EXE 3272 WINWORD.EXE 3272 WINWORD.EXE 3272 WINWORD.EXE 3272 WINWORD.EXE 3272 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 3272 wrote to memory of 1848 3272 WINWORD.EXE regsvr32.exe PID 3272 wrote to memory of 1848 3272 WINWORD.EXE regsvr32.exe PID 1848 wrote to memory of 164 1848 regsvr32.exe regsvr32.exe PID 1848 wrote to memory of 164 1848 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\ef4f00ef898af4684313869d9a68fe96701e3341e5f94172374800484f9d6f25.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:3272 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\233304.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\DdJmtjNDKgnZfu\iKuIWhAcS.dll"3⤵PID:164
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
533.9MB
MD56c442d3235f3e60f7a9ea3efca0289ab
SHA198a3e3afbac75a582ffbc6d67c39a67fa7c97f63
SHA2569dd2387b18930f0dc67917b2b14c9146bfc6f395fe917d8decc3263011797efa
SHA5120a40b46ecde2142f60aaa406ddc06d912c8deb4fee14716de31e23b74718531c003ee6adebb10e47325c3fd67a1f7ef5ff51c72e9abddc7d18ed4bbb8ce9ab24
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Filesize
973KB
MD5190d5c8eab598f7e99284dab0dd18ea9
SHA143dbfafd70a0742d964ff4444d6fc41d7c9dd0fa
SHA25617c986a56a0e2d196e59f7c8fce110a5f3a699a51e835c4b74efdc95144a0615
SHA512fd93aa96ca4493500445c6fbe8cd8b68694f7e6daac74e06df7686bfe9e8c85c2bc33a8e4a1285cb65a18c368b1f1a654c95191ef159fb57b620e15cd6951451
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Filesize
533.9MB
MD56c442d3235f3e60f7a9ea3efca0289ab
SHA198a3e3afbac75a582ffbc6d67c39a67fa7c97f63
SHA2569dd2387b18930f0dc67917b2b14c9146bfc6f395fe917d8decc3263011797efa
SHA5120a40b46ecde2142f60aaa406ddc06d912c8deb4fee14716de31e23b74718531c003ee6adebb10e47325c3fd67a1f7ef5ff51c72e9abddc7d18ed4bbb8ce9ab24