Analysis
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max time kernel
102s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
09-03-2023 12:23
Behavioral task
behavioral1
Sample
Rech 2023.09.03_1322.doc
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Rech 2023.09.03_1322.doc
Resource
win10v2004-20230220-en
General
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Target
Rech 2023.09.03_1322.doc
-
Size
538.3MB
-
MD5
c8eab42af88f3ad84940eedd34134af3
-
SHA1
577796eed1d96a384dd842e28a4e9c9fbcdd9661
-
SHA256
8ea0a6b9147b64ac282ad58168eaf9fa51f254e518d8671d1c4992c311d26d1c
-
SHA512
1ec3a31f42d5e6b93faed459bcf6782378c4d89631737686e4fce7ed598a74395d71fbcc3a987425241bd525a76ace2b34f781e3393e2f1dca86ffc897d75b89
-
SSDEEP
6144:QDuxuMOZCBtANveapnaWVgsaNlbfXhoEHC87pnkTnlzIWZ4:18yGZZak8fxJB1e5IWZ4
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
-
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 4168 2804 regsvr32.exe WINWORD.EXE -
Loads dropped DLL 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 4168 regsvr32.exe 1668 regsvr32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
regsvr32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AGySo.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\ZLbahLqnXgUHV\\AGySo.dll\"" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run 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 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 31 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 2804 WINWORD.EXE 2804 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 4168 regsvr32.exe 4168 regsvr32.exe 1668 regsvr32.exe 1668 regsvr32.exe 1668 regsvr32.exe 1668 regsvr32.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
WINWORD.EXEpid process 2804 WINWORD.EXE 2804 WINWORD.EXE 2804 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 2804 WINWORD.EXE 2804 WINWORD.EXE 2804 WINWORD.EXE 2804 WINWORD.EXE 2804 WINWORD.EXE 2804 WINWORD.EXE 2804 WINWORD.EXE 2804 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 2804 wrote to memory of 4168 2804 WINWORD.EXE regsvr32.exe PID 2804 wrote to memory of 4168 2804 WINWORD.EXE regsvr32.exe PID 4168 wrote to memory of 1668 4168 regsvr32.exe regsvr32.exe PID 4168 wrote to memory of 1668 4168 regsvr32.exe regsvr32.exe
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\Rech 2023.09.03_1322.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:2804 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\132429.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4168 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\ZLbahLqnXgUHV\AGySo.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:1668
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
531.5MB
MD5f64544cfce0287fdf9062605f884fc54
SHA1bd5470a805762a371d72a05e48ba397442e0a8e6
SHA25683f604c5e5f6856ab2ccfdb732218f87ea0f5704043f5ec384d8fdcc9a85a513
SHA5122d51dfe44a684305075fc847a652ee04f4bac2900a0f3c677b6a6a70be5201a703a3918993fc994107b66167c7268a1b89b5cf8b53c1fa4af11bff38ef29a7e7
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Filesize
531.5MB
MD5f64544cfce0287fdf9062605f884fc54
SHA1bd5470a805762a371d72a05e48ba397442e0a8e6
SHA25683f604c5e5f6856ab2ccfdb732218f87ea0f5704043f5ec384d8fdcc9a85a513
SHA5122d51dfe44a684305075fc847a652ee04f4bac2900a0f3c677b6a6a70be5201a703a3918993fc994107b66167c7268a1b89b5cf8b53c1fa4af11bff38ef29a7e7
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Filesize
816KB
MD5792875b3dd621781b5012aad4c44316a
SHA1f6e9e202a8dc07816e2ea06cc00beaf17b8e8bf9
SHA25603e98dc99228da5853b7a86f72a775df3d496b222ad1201e10abd2d2ef6aafb7
SHA512f416501c31534f792d2ea9ee56f11a9131db39030561fbb869d8e49594f81aded4da1383de91266218e6a27a562a1e151b452e3bd3babf0e746d30d341253037
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
531.5MB
MD5f64544cfce0287fdf9062605f884fc54
SHA1bd5470a805762a371d72a05e48ba397442e0a8e6
SHA25683f604c5e5f6856ab2ccfdb732218f87ea0f5704043f5ec384d8fdcc9a85a513
SHA5122d51dfe44a684305075fc847a652ee04f4bac2900a0f3c677b6a6a70be5201a703a3918993fc994107b66167c7268a1b89b5cf8b53c1fa4af11bff38ef29a7e7