Analysis

  • max time kernel
    142s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/03/2023, 09:08

General

  • Target

    Rech.doc

  • Size

    544.3MB

  • MD5

    03a4b5b411f8705e8f20b3e994bae110

  • SHA1

    778e6b3a2fc573ce19c7a7224f4bd4b304c55472

  • SHA256

    de8081cfbb09b591530ae0d10a274e5c308e076f79512323b5c2d5dc590c4498

  • SHA512

    1f1c4abfa9ac5e07f392e5c57c282730210fc6adb5f3960e37fc8e2bbaa92d731086dade7d8bf4e33de7c8d4c1800b3a1a1dc4e5a6b461dd581bac0093c15b25

  • 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\Rech.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:1900
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\100859.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\KbOss\FwmvqT.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:1756

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\100859.tmp

          Filesize

          543.7MB

          MD5

          10d06673f1cdeb8164c37974f22af5e6

          SHA1

          2410d65e5d971d4793e26601ae79aabc3b780811

          SHA256

          0ea8aa916237b8c56266eaa242153eff8f19dd85ade9d6bc0c3c065909415325

          SHA512

          b4142923c6a1c37208f95e59cfb09b4ff885503b0d115a77bf38bc957ee8931b24aeef1895f8e4ff0f7fe7ad3c1eabe3a3c21e9c2b83794a5950ee4f83ce060b

        • C:\Users\Admin\AppData\Local\Temp\100859.tmp

          Filesize

          543.7MB

          MD5

          10d06673f1cdeb8164c37974f22af5e6

          SHA1

          2410d65e5d971d4793e26601ae79aabc3b780811

          SHA256

          0ea8aa916237b8c56266eaa242153eff8f19dd85ade9d6bc0c3c065909415325

          SHA512

          b4142923c6a1c37208f95e59cfb09b4ff885503b0d115a77bf38bc957ee8931b24aeef1895f8e4ff0f7fe7ad3c1eabe3a3c21e9c2b83794a5950ee4f83ce060b

        • C:\Users\Admin\AppData\Local\Temp\100901.zip

          Filesize

          879KB

          MD5

          7d74461b5fd70928dc244547869f8244

          SHA1

          0a69beecdd517a2b9e618147856367fceae23bd4

          SHA256

          335051721cda978a48a4e088a1d1cdf3c982a46a64d438fc153b187eef2eb86b

          SHA512

          4f7c40b88e1abfc258d3a8ae620b1c70c47996f57041d39435f32dcbcc7d318dbc48ca41262a2604dd468db15a30532edab8358b5dc8ee8b1f5f16f02a7d20eb

        • C:\Windows\System32\KbOss\FwmvqT.dll

          Filesize

          543.7MB

          MD5

          10d06673f1cdeb8164c37974f22af5e6

          SHA1

          2410d65e5d971d4793e26601ae79aabc3b780811

          SHA256

          0ea8aa916237b8c56266eaa242153eff8f19dd85ade9d6bc0c3c065909415325

          SHA512

          b4142923c6a1c37208f95e59cfb09b4ff885503b0d115a77bf38bc957ee8931b24aeef1895f8e4ff0f7fe7ad3c1eabe3a3c21e9c2b83794a5950ee4f83ce060b

        • memory/1756-187-0x0000000000400000-0x00000000004B0000-memory.dmp

          Filesize

          704KB

        • memory/1900-139-0x00007FFB939F0000-0x00007FFB93A00000-memory.dmp

          Filesize

          64KB

        • memory/1900-133-0x00007FFB95E70000-0x00007FFB95E80000-memory.dmp

          Filesize

          64KB

        • memory/1900-138-0x00007FFB939F0000-0x00007FFB93A00000-memory.dmp

          Filesize

          64KB

        • memory/1900-137-0x00007FFB95E70000-0x00007FFB95E80000-memory.dmp

          Filesize

          64KB

        • memory/1900-136-0x00007FFB95E70000-0x00007FFB95E80000-memory.dmp

          Filesize

          64KB

        • memory/1900-135-0x00007FFB95E70000-0x00007FFB95E80000-memory.dmp

          Filesize

          64KB

        • memory/1900-134-0x00007FFB95E70000-0x00007FFB95E80000-memory.dmp

          Filesize

          64KB

        • memory/4092-177-0x0000000180000000-0x000000018002D000-memory.dmp

          Filesize

          180KB

        • memory/4092-180-0x0000000000F00000-0x0000000000F01000-memory.dmp

          Filesize

          4KB