Malware Analysis Report

2025-08-06 04:00

Sample ID 230308-gd4fvsec34
Target 2023-03-08_0921.zip
SHA256 f4b19d4494ef51c8d397647dc1be38a105ea2700f31d5b224967158729fb5a3b
Tags
macro macro_on_action emotet epoch4 banker trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f4b19d4494ef51c8d397647dc1be38a105ea2700f31d5b224967158729fb5a3b

Threat Level: Known bad

The file 2023-03-08_0921.zip was found to be: Known bad.

Malicious Activity Summary

macro macro_on_action emotet epoch4 banker trojan

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

Analysis: static1

Detonation Overview

Reported

2023-03-08 05:42

Signatures

Office macro that triggers on suspicious action

macro macro_on_action
Description Indicator Process Target
N/A N/A N/A N/A

Suspicious Office macro

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

"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2023-03-08_0921.doc" /o ""

Signatures

Emotet

trojan banker 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

Uses Task Scheduler COM API

persistence

Uses Volume Shadow Copy WMI provider

ransomware

Uses Volume Shadow Copy service COM API

ransomware

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