Analysis
-
max time kernel
146s -
max time network
149s -
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 23:37
Behavioral task
behavioral1
Sample
b6c8bc00e90ec6914272a9c099be7e8f249ccbaad0a0736133209fc9d47678c5.doc
Resource
win10-20230220-en
General
-
Target
b6c8bc00e90ec6914272a9c099be7e8f249ccbaad0a0736133209fc9d47678c5.doc
-
Size
231KB
-
MD5
c53dd8ae3727ecb19a8a009476863f14
-
SHA1
f314783d12a8bd97333b0e524897811b155dcfcb
-
SHA256
b6c8bc00e90ec6914272a9c099be7e8f249ccbaad0a0736133209fc9d47678c5
-
SHA512
fa4d072f4f6329eab723931a8e4b8ec4d0bc23e84700999b78b552afe7ab64d1e0e2aebb51b55cedd7619033024e377ee42b33ba6daa86c1140174ad05faff63
-
SSDEEP
6144:NoK2NIve7Crm2S+sgD22TMp7Gw8WL2/URpM:Kgm7CC2rD2J74ApM
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
-
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 652 4104 regsvr32.exe WINWORD.EXE -
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 652 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 4104 WINWORD.EXE 4104 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
regsvr32.exepid process 652 regsvr32.exe 652 regsvr32.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 4104 WINWORD.EXE 4104 WINWORD.EXE 4104 WINWORD.EXE 4104 WINWORD.EXE 4104 WINWORD.EXE 4104 WINWORD.EXE 4104 WINWORD.EXE 4104 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 4104 wrote to memory of 652 4104 WINWORD.EXE regsvr32.exe PID 4104 wrote to memory of 652 4104 WINWORD.EXE regsvr32.exe PID 652 wrote to memory of 1244 652 regsvr32.exe regsvr32.exe PID 652 wrote to memory of 1244 652 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.
-
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
-
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\b6c8bc00e90ec6914272a9c099be7e8f249ccbaad0a0736133209fc9d47678c5.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\003729.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\VBDbh\HGhwLGIvXgXI.dll"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\003729.tmpFilesize
513.9MB
MD5e9f7a3236613a43cb55ff0de34717aa1
SHA135733e63fdb1a122a79af9ba82ebb043d1a0804e
SHA256fbd8b34e1c6f5fec3dceec4c857b260cacf82166d1e7062594cbe30392b632db
SHA51260b2f0d81a68b37590a293fa47472ff8f45862faffddc3772bcf2862f40b759903c50cc9300a1aa15a41ad26e918629dad2c207b149f5215d66f5a4954fd2e1b
-
C:\Users\Admin\AppData\Local\Temp\003730.zipFilesize
953KB
MD5a0be50214dfd69fb2102fa6d33d0b308
SHA1311ef8772a19322e41ccbb380ba79ff2bc779de6
SHA25613cbf971d2c9e4cd0326a1164c4be0349b050a60fd067a4c162b7b7dead1d345
SHA5126a8098b558681b7a531b8024e78a657241bd1ada1a4a67809ec6cae2532af204ac8b82f11a050f03a2dcd6e75076d2f1b7a69e1b839355bcacbfaaa979836350
-
\Users\Admin\AppData\Local\Temp\003729.tmpFilesize
513.9MB
MD5e9f7a3236613a43cb55ff0de34717aa1
SHA135733e63fdb1a122a79af9ba82ebb043d1a0804e
SHA256fbd8b34e1c6f5fec3dceec4c857b260cacf82166d1e7062594cbe30392b632db
SHA51260b2f0d81a68b37590a293fa47472ff8f45862faffddc3772bcf2862f40b759903c50cc9300a1aa15a41ad26e918629dad2c207b149f5215d66f5a4954fd2e1b
-
memory/652-325-0x00000000010B0000-0x000000000110A000-memory.dmpFilesize
360KB
-
memory/652-345-0x0000000000BF0000-0x0000000000BF1000-memory.dmpFilesize
4KB
-
memory/4104-125-0x00007FFD80340000-0x00007FFD80350000-memory.dmpFilesize
64KB
-
memory/4104-126-0x00007FFD80340000-0x00007FFD80350000-memory.dmpFilesize
64KB
-
memory/4104-122-0x00007FFD839E0000-0x00007FFD839F0000-memory.dmpFilesize
64KB
-
memory/4104-121-0x00007FFD839E0000-0x00007FFD839F0000-memory.dmpFilesize
64KB
-
memory/4104-120-0x00007FFD839E0000-0x00007FFD839F0000-memory.dmpFilesize
64KB
-
memory/4104-119-0x00007FFD839E0000-0x00007FFD839F0000-memory.dmpFilesize
64KB
-
memory/4104-436-0x00007FFD839E0000-0x00007FFD839F0000-memory.dmpFilesize
64KB
-
memory/4104-437-0x00007FFD839E0000-0x00007FFD839F0000-memory.dmpFilesize
64KB
-
memory/4104-438-0x00007FFD839E0000-0x00007FFD839F0000-memory.dmpFilesize
64KB
-
memory/4104-439-0x00007FFD839E0000-0x00007FFD839F0000-memory.dmpFilesize
64KB