Analysis
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max time kernel
101s -
max time network
157s -
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 16:55
Behavioral task
behavioral1
Sample
580_0.doc
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
580_0.doc
Resource
win10v2004-20230220-en
General
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Target
580_0.doc
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Size
503.4MB
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MD5
dd5d561c7b507f6bbcdb6d11ce96b711
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SHA1
ef03fc14fd594bf6b642c98e1bb9233936b55aae
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SHA256
3a4b55f2f19da924ee1e96838c4a7fea5c7ce15e962abc89b74ddea6cab45524
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SHA512
43a372f849a3f2ded2780f4ce391ade7942310ca204b1648f3c9ebd526cc405a2d316cef7561238070d8eac34ee4a814db4cf2071cfca91a3a89222a8b7d3ca8
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SSDEEP
6144:zZRtBPT4N/uQaNULlPUvauNTklB7ShcbYdFf8UOPv:zZvJhfKd2amwYdKUq
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
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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 4612 1696 regsvr32.exe WINWORD.EXE -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 4612 regsvr32.exe 1928 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\YptyxSOWlNsACh.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\SMndkuFXSz\\YptyxSOWlNsACh.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\~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 5 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 36 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 38 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 42 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 44 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 54 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 1696 WINWORD.EXE 1696 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 4612 regsvr32.exe 4612 regsvr32.exe 1928 regsvr32.exe 1928 regsvr32.exe 1928 regsvr32.exe 1928 regsvr32.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 1696 WINWORD.EXE 1696 WINWORD.EXE 1696 WINWORD.EXE 1696 WINWORD.EXE 1696 WINWORD.EXE 1696 WINWORD.EXE 1696 WINWORD.EXE 1696 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 1696 wrote to memory of 4612 1696 WINWORD.EXE regsvr32.exe PID 1696 wrote to memory of 4612 1696 WINWORD.EXE regsvr32.exe PID 4612 wrote to memory of 1928 4612 regsvr32.exe regsvr32.exe PID 4612 wrote to memory of 1928 4612 regsvr32.exe regsvr32.exe
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\580_0.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\175607.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\SMndkuFXSz\YptyxSOWlNsACh.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
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C:\Users\Admin\AppData\Local\Temp\175607.tmpFilesize
561KB
MD5c901c8089c5e017f8e9b4b15c8ef154f
SHA1336c2bea43bfa2e8afd27a164dba640f36c0013c
SHA256fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a
SHA5129ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade
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C:\Users\Admin\AppData\Local\Temp\175607.tmpFilesize
561KB
MD5c901c8089c5e017f8e9b4b15c8ef154f
SHA1336c2bea43bfa2e8afd27a164dba640f36c0013c
SHA256fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a
SHA5129ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade
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C:\Windows\System32\SMndkuFXSz\YptyxSOWlNsACh.dllFilesize
561KB
MD5c901c8089c5e017f8e9b4b15c8ef154f
SHA1336c2bea43bfa2e8afd27a164dba640f36c0013c
SHA256fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a
SHA5129ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade
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memory/1696-137-0x00007FFE1C7B0000-0x00007FFE1C7C0000-memory.dmpFilesize
64KB
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memory/1696-133-0x00007FFE1C7B0000-0x00007FFE1C7C0000-memory.dmpFilesize
64KB
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memory/1696-138-0x00007FFE1A510000-0x00007FFE1A520000-memory.dmpFilesize
64KB
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memory/1696-139-0x00007FFE1A510000-0x00007FFE1A520000-memory.dmpFilesize
64KB
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memory/1696-136-0x00007FFE1C7B0000-0x00007FFE1C7C0000-memory.dmpFilesize
64KB
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memory/1696-135-0x00007FFE1C7B0000-0x00007FFE1C7C0000-memory.dmpFilesize
64KB
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memory/1696-134-0x00007FFE1C7B0000-0x00007FFE1C7C0000-memory.dmpFilesize
64KB
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memory/1696-186-0x00007FFE1C7B0000-0x00007FFE1C7C0000-memory.dmpFilesize
64KB
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memory/1696-187-0x00007FFE1C7B0000-0x00007FFE1C7C0000-memory.dmpFilesize
64KB
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memory/1696-188-0x00007FFE1C7B0000-0x00007FFE1C7C0000-memory.dmpFilesize
64KB
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memory/1696-189-0x00007FFE1C7B0000-0x00007FFE1C7C0000-memory.dmpFilesize
64KB
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memory/4612-154-0x0000000002D40000-0x0000000002D6C000-memory.dmpFilesize
176KB
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memory/4612-157-0x0000000002D00000-0x0000000002D01000-memory.dmpFilesize
4KB