Analysis

  • max time kernel
    147s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-ja
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-jalocale:ja-jpos:windows10-2004-x64systemwindows
  • submitted
    08/03/2023, 05:35

General

  • Target

    2023-03-08_0921.doc

  • Size

    543.3MB

  • MD5

    b13b243434b3d4b186026fa3d3fdba9a

  • SHA1

    c11e836318755c06db5a18c54892e3cccf279da8

  • SHA256

    3fd0964eb74075e3431e27920ccdb2d6edffa8b8c2dac307a20f183d72e0cbdd

  • SHA512

    12564274a8b44887b8cce27abb8e5778e07514beaf3bd11b70bf8f779f912f8a584c555c90c49727868978a07c97c408a699a1a812558fb109954e660f3129e5

  • SSDEEP

    6144:xPn4VZXbatu7MDogsDkHS50LdfcGcbz1f5M9KTFrMpSlMK3Ru+Q28:xP4PbNMkgg3Ru+x

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

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

eck1.plain
ecs1.plain

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

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 ""
    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:1456
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\063715.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4564
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\BkbeDQJV\ibEQZMfudmVpOWT.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:1440

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\063715.tmp

          Filesize

          512.7MB

          MD5

          16340a1a8a8e16942901cb79b5827c6c

          SHA1

          c8d280faf85d982ac20dc30262b5ff815b97f54f

          SHA256

          bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e

          SHA512

          24df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7

        • C:\Users\Admin\AppData\Local\Temp\063715.tmp

          Filesize

          512.7MB

          MD5

          16340a1a8a8e16942901cb79b5827c6c

          SHA1

          c8d280faf85d982ac20dc30262b5ff815b97f54f

          SHA256

          bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e

          SHA512

          24df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7

        • C:\Users\Admin\AppData\Local\Temp\063716.zip

          Filesize

          848KB

          MD5

          48d4120b1b05af4a03542c5b281143aa

          SHA1

          131de646e85d0ac903225c2f2f4ee2c18e11ccd5

          SHA256

          091c267d3fc0974acfa3fa3ba04ceedcbef7336e399d22a2a9361cac08ba0b92

          SHA512

          c6ff64f32482c622191bac41c0ea5c429621bc79b39e6cb6de96d56f6d07daa9cf6c25ba4a260051b55e700c23b9e91aae6e3cf63975d122d40e692368bdddd4

        • C:\Windows\System32\BkbeDQJV\ibEQZMfudmVpOWT.dll

          Filesize

          512.7MB

          MD5

          16340a1a8a8e16942901cb79b5827c6c

          SHA1

          c8d280faf85d982ac20dc30262b5ff815b97f54f

          SHA256

          bfe0dde9bb9e21ee13fed780813883c0a543ec011ee7718793848514bee38a1e

          SHA512

          24df68a6aa4b1df97afd39c9eb247412963eb8294588791ac976e46029fb13f37fd2beded6824ab4d0450c0d94dac4cef59d92ecec41fc61d1399b6db01eefa7

        • memory/1440-189-0x0000000000400000-0x00000000004B0000-memory.dmp

          Filesize

          704KB

        • memory/1456-136-0x00007FF9D7F70000-0x00007FF9D7F80000-memory.dmp

          Filesize

          64KB

        • memory/1456-139-0x00007FF9D5F10000-0x00007FF9D5F20000-memory.dmp

          Filesize

          64KB

        • memory/1456-138-0x00007FF9D5F10000-0x00007FF9D5F20000-memory.dmp

          Filesize

          64KB

        • memory/1456-137-0x00007FF9D7F70000-0x00007FF9D7F80000-memory.dmp

          Filesize

          64KB

        • memory/1456-133-0x00007FF9D7F70000-0x00007FF9D7F80000-memory.dmp

          Filesize

          64KB

        • memory/1456-134-0x00007FF9D7F70000-0x00007FF9D7F80000-memory.dmp

          Filesize

          64KB

        • memory/1456-135-0x00007FF9D7F70000-0x00007FF9D7F80000-memory.dmp

          Filesize

          64KB

        • memory/4564-180-0x0000000002980000-0x0000000002981000-memory.dmp

          Filesize

          4KB

        • memory/4564-176-0x0000000180000000-0x000000018002D000-memory.dmp

          Filesize

          180KB

        • memory/4564-183-0x0000000000400000-0x00000000004B0000-memory.dmp

          Filesize

          704KB