Analysis
-
max time kernel
140s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
19-03-2023 12:18
Behavioral task
behavioral1
Sample
FILE 415341062899.doc
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
FILE 415341062899.doc
Resource
win10v2004-20230220-en
General
-
Target
FILE 415341062899.doc
-
Size
530.3MB
-
MD5
fe3b1dd72af365a1a6478b5d389ece09
-
SHA1
c8e08327874c7139ada111a5a7434e040d451a79
-
SHA256
2e46ef586a4ba2c61053c72c5d93f941be2bc4e4c7f6050900c9849d0281337e
-
SHA512
bf9b1cdb01bc35e29aa6bc07b73a5a6ba7c0c8c7d7b097a1a64e4f1f4772b0b487652ca46dd0a6ae07a740f00e588d6215babbee16db5c626d657c18a63beaba
-
SSDEEP
6144:ip32/gDd0Nmt71wFmSWjfDrV8YQnZocbyrX4NqclWL9:ip32SEmtJwFmhjfPtrXqqyW
Malware Config
Extracted
emotet
Epoch5
103.85.95.4:8080
103.224.241.74:8080
178.238.225.252:8080
37.59.103.148:8080
78.47.204.80:443
138.197.14.67:8080
128.199.242.164:8080
54.37.228.122:443
37.44.244.177:8080
139.59.80.108:8080
218.38.121.17:443
82.98.180.154:7080
114.79.130.68:443
159.65.135.222:7080
174.138.33.49:7080
195.77.239.39:8080
193.194.92.175:443
198.199.70.22:8080
85.214.67.203:8080
93.84.115.205:7080
186.250.48.5:443
46.101.98.60:8080
160.16.143.191:8080
64.227.55.231:8080
175.126.176.79:8080
85.25.120.45:8080
178.62.112.199:8080
185.148.169.10:8080
128.199.217.206:443
103.41.204.169:8080
209.239.112.82:8080
202.28.34.99:8080
139.196.72.155:8080
87.106.97.83:7080
93.104.209.107:8080
104.244.79.94:443
115.178.55.22:80
83.229.80.93:8080
103.254.12.236:7080
62.171.178.147:8080
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 3884 3748 regsvr32.exe WINWORD.EXE -
Downloads MZ/PE file
-
Loads dropped DLL 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 3884 regsvr32.exe 3912 regsvr32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HrfZrxvjVp.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\RHIyeXgh\\HrfZrxvjVp.dll\"" 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 2 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 44 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 46 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 3748 WINWORD.EXE 3748 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 3884 regsvr32.exe 3884 regsvr32.exe 3912 regsvr32.exe 3912 regsvr32.exe 3912 regsvr32.exe 3912 regsvr32.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 3748 WINWORD.EXE 3748 WINWORD.EXE 3748 WINWORD.EXE 3748 WINWORD.EXE 3748 WINWORD.EXE 3748 WINWORD.EXE 3748 WINWORD.EXE 3748 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 3748 wrote to memory of 3884 3748 WINWORD.EXE regsvr32.exe PID 3748 wrote to memory of 3884 3748 WINWORD.EXE regsvr32.exe PID 3884 wrote to memory of 3912 3884 regsvr32.exe regsvr32.exe PID 3884 wrote to memory of 3912 3884 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\FILE 415341062899.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\132025.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\RHIyeXgh\HrfZrxvjVp.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\132025.tmpFilesize
561KB
MD5c901c8089c5e017f8e9b4b15c8ef154f
SHA1336c2bea43bfa2e8afd27a164dba640f36c0013c
SHA256fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a
SHA5129ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade
-
C:\Users\Admin\AppData\Local\Temp\132025.tmpFilesize
561KB
MD5c901c8089c5e017f8e9b4b15c8ef154f
SHA1336c2bea43bfa2e8afd27a164dba640f36c0013c
SHA256fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a
SHA5129ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade
-
C:\Windows\System32\RHIyeXgh\HrfZrxvjVp.dllFilesize
561KB
MD5c901c8089c5e017f8e9b4b15c8ef154f
SHA1336c2bea43bfa2e8afd27a164dba640f36c0013c
SHA256fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a
SHA5129ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade
-
memory/3748-186-0x00007FFAB04F0000-0x00007FFAB0500000-memory.dmpFilesize
64KB
-
memory/3748-137-0x00007FFAB04F0000-0x00007FFAB0500000-memory.dmpFilesize
64KB
-
memory/3748-138-0x00007FFAADBE0000-0x00007FFAADBF0000-memory.dmpFilesize
64KB
-
memory/3748-139-0x00007FFAADBE0000-0x00007FFAADBF0000-memory.dmpFilesize
64KB
-
memory/3748-136-0x00007FFAB04F0000-0x00007FFAB0500000-memory.dmpFilesize
64KB
-
memory/3748-135-0x00007FFAB04F0000-0x00007FFAB0500000-memory.dmpFilesize
64KB
-
memory/3748-134-0x00007FFAB04F0000-0x00007FFAB0500000-memory.dmpFilesize
64KB
-
memory/3748-133-0x00007FFAB04F0000-0x00007FFAB0500000-memory.dmpFilesize
64KB
-
memory/3748-187-0x00007FFAB04F0000-0x00007FFAB0500000-memory.dmpFilesize
64KB
-
memory/3748-188-0x00007FFAB04F0000-0x00007FFAB0500000-memory.dmpFilesize
64KB
-
memory/3748-189-0x00007FFAB04F0000-0x00007FFAB0500000-memory.dmpFilesize
64KB
-
memory/3884-159-0x0000000002B30000-0x0000000002B5C000-memory.dmpFilesize
176KB
-
memory/3884-162-0x0000000001320000-0x0000000001321000-memory.dmpFilesize
4KB