Analysis Overview
SHA256
f4b19d4494ef51c8d397647dc1be38a105ea2700f31d5b224967158729fb5a3b
Threat Level: Known bad
The file 2023-03-08_0921.zip was found to be: Known bad.
Malicious Activity Summary
Emotet
Process spawned unexpected child process
Suspicious Office macro
Office macro that triggers on suspicious action
Loads dropped DLL
Checks processor information in registry
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Suspicious use of FindShellTrayWindow
Script User-Agent
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Enumerates system info in registry
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy WMI provider
Suspicious behavior: AddClipboardFormatListener
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-03-08 05:42
Signatures
Office macro that triggers on suspicious action
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-03-08 05:42
Reported
2023-03-08 05:53
Platform
win10-20230220-ja
Max time kernel
595s
Max time network
460s
Command Line
Signatures
Emotet
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process | N/A | C:\Windows\System32\regsvr32.exe | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE |
| Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process | N/A | C:\Windows\System32\regsvr32.exe | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3692 wrote to memory of 3328 | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | C:\Windows\System32\regsvr32.exe |
| PID 3692 wrote to memory of 3328 | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | C:\Windows\System32\regsvr32.exe |
| PID 3328 wrote to memory of 2528 | N/A | C:\Windows\System32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 3328 wrote to memory of 2528 | N/A | C:\Windows\System32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 3692 wrote to memory of 1540 | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | C:\Windows\System32\regsvr32.exe |
| PID 3692 wrote to memory of 1540 | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | C:\Windows\System32\regsvr32.exe |
| PID 1540 wrote to memory of 4340 | N/A | C:\Windows\System32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1540 wrote to memory of 4340 | N/A | C:\Windows\System32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
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\2023-03-08_0921.doc" /o ""
C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\064347.tmp"
C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\WBIsNtAywqSSUM\zZHjumimnf.dll"
C:\Windows\System32\IME\SHARED\imebroker.exe
C:\Windows\System32\IME\SHARED\imebroker.exe -Embedding
C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\064705.tmp"
C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\KMiMZSlCouWbJNZEt\wpfrEiTEfPkEu.dll"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 141.76.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.dnautik.com | udp |
| RS | 195.252.110.130:80 | www.dnautik.com | tcp |
| US | 8.8.8.8:53 | 130.110.252.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 160.145.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 126.133.255.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| IE | 20.50.80.209:443 | tcp | |
| US | 13.107.4.50:80 | tcp | |
| US | 8.8.8.8:53 | 233.141.123.20.in-addr.arpa | udp |
| RS | 195.252.110.130:80 | www.dnautik.com | tcp |
| US | 8.8.8.8:53 | 192.98.74.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.25.221.88.in-addr.arpa | udp |
Files
memory/3692-119-0x00007FFD114A0000-0x00007FFD114B0000-memory.dmp
memory/3692-120-0x00007FFD114A0000-0x00007FFD114B0000-memory.dmp
memory/3692-121-0x00007FFD114A0000-0x00007FFD114B0000-memory.dmp
memory/3692-122-0x00007FFD114A0000-0x00007FFD114B0000-memory.dmp
memory/3692-125-0x00007FFD0E5C0000-0x00007FFD0E5D0000-memory.dmp
memory/3692-126-0x00007FFD0E5C0000-0x00007FFD0E5D0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\064349.zip
| MD5 | 48d4120b1b05af4a03542c5b281143aa |
| SHA1 | 131de646e85d0ac903225c2f2f4ee2c18e11ccd5 |
| SHA256 | 091c267d3fc0974acfa3fa3ba04ceedcbef7336e399d22a2a9361cac08ba0b92 |
| SHA512 | c6ff64f32482c622191bac41c0ea5c429621bc79b39e6cb6de96d56f6d07daa9cf6c25ba4a260051b55e700c23b9e91aae6e3cf63975d122d40e692368bdddd4 |
C:\Users\Admin\AppData\Local\Temp\064347.tmp
| MD5 | 16340a1a8a8e16942901cb79b5827c6c |
| SHA1 | c8d280faf85d982ac20dc30262b5ff815b97f54f |
| SHA256 | bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e |
| SHA512 | 24df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7 |
memory/3328-330-0x00000000021A0000-0x0000000002250000-memory.dmp
\Users\Admin\AppData\Local\Temp\064347.tmp
| MD5 | 16340a1a8a8e16942901cb79b5827c6c |
| SHA1 | c8d280faf85d982ac20dc30262b5ff815b97f54f |
| SHA256 | bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e |
| SHA512 | 24df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7 |
memory/3328-336-0x0000000000770000-0x0000000000771000-memory.dmp
memory/3328-334-0x0000000180000000-0x000000018002D000-memory.dmp
\Users\Admin\AppData\Local\Temp\064347.tmp
| MD5 | 16340a1a8a8e16942901cb79b5827c6c |
| SHA1 | c8d280faf85d982ac20dc30262b5ff815b97f54f |
| SHA256 | bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e |
| SHA512 | 24df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7 |
memory/3328-349-0x00000000021A0000-0x0000000002250000-memory.dmp
memory/3328-357-0x00000000021A0000-0x0000000002250000-memory.dmp
memory/4084-402-0x0000016035F90000-0x000001603600D000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Office\MSO0127.acl
| MD5 | fddc14f6c85db1a42bc2feaa7bdad20e |
| SHA1 | 0b050bc79058b8ad6b43d26eb03ae9b5fb70fa49 |
| SHA256 | 877391ccbd6efc606705c3af0b23a5d8cc8650bd4d4ecf4ae9ebbc4cecb60240 |
| SHA512 | 5f64f07409dd484ecac07392b6295a2453b9c113488a5bef209f3de8ec48e899e1bc12c4c0652690be494a177d2a0c31f6506774519250e25a90d6b2d93a17cf |
C:\Users\Admin\AppData\Local\Temp\064707\alH0ru169YZUM5j9te4a2XXuM.dll
| MD5 | 16340a1a8a8e16942901cb79b5827c6c |
| SHA1 | c8d280faf85d982ac20dc30262b5ff815b97f54f |
| SHA256 | bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e |
| SHA512 | 24df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7 |
C:\Users\Admin\AppData\Local\Temp\064705.tmp
| MD5 | 16340a1a8a8e16942901cb79b5827c6c |
| SHA1 | c8d280faf85d982ac20dc30262b5ff815b97f54f |
| SHA256 | bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e |
| SHA512 | 24df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7 |
\Users\Admin\AppData\Local\Temp\064705.tmp
| MD5 | 16340a1a8a8e16942901cb79b5827c6c |
| SHA1 | c8d280faf85d982ac20dc30262b5ff815b97f54f |
| SHA256 | bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e |
| SHA512 | 24df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7 |
memory/1540-470-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/1540-471-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/4084-479-0x0000016035F90000-0x000001603600D000-memory.dmp