Analysis

  • max time kernel
    147s
  • max time network
    153s
  • 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, 08:11

General

  • Target

    ARC_KS9201027011CL.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\ARC_KS9201027011CL.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:3852
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\082307.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4452
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\YyCjsZNuDi\ztCmLuWfEOS.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:2068

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\082307.tmp

          Filesize

          517.7MB

          MD5

          9b1e551cd585f8166cd937f2a0980f81

          SHA1

          15fd840efab66b5b385992882a57aa06eb84cb1d

          SHA256

          cfad0dcd5988f2f30d91b4c51bf68ff571ec988393934ecd7bcb876163f5ea66

          SHA512

          a1f633a81871cd972cb7f3d90cad12a536798e2239e8c5488409c8c2ab503187563e9a7779f48f665487536ba1cfbf0daa6bd52055ac87d7cb52bfd56588f430

        • C:\Users\Admin\AppData\Local\Temp\082307.tmp

          Filesize

          517.7MB

          MD5

          9b1e551cd585f8166cd937f2a0980f81

          SHA1

          15fd840efab66b5b385992882a57aa06eb84cb1d

          SHA256

          cfad0dcd5988f2f30d91b4c51bf68ff571ec988393934ecd7bcb876163f5ea66

          SHA512

          a1f633a81871cd972cb7f3d90cad12a536798e2239e8c5488409c8c2ab503187563e9a7779f48f665487536ba1cfbf0daa6bd52055ac87d7cb52bfd56588f430

        • C:\Users\Admin\AppData\Local\Temp\082308.zip

          Filesize

          853KB

          MD5

          fb9e96b0881ea74a860c2d22e9f80272

          SHA1

          c807383bc031f7e7ef247c3d6bda284a6163ba8d

          SHA256

          61e4713129e7466ba4986cbbc1cfe05464439f5a6c3a67590d3be59cc46b29cc

          SHA512

          ed7045dcc833f8318f4741061f4a7c2570cfe5ad93645670d508b9c428ffb838cb54de979690e2feb15d06ed3166c06730a52edfdf4831309513b6f8295b34d0

        • C:\Windows\System32\YyCjsZNuDi\ztCmLuWfEOS.dll

          Filesize

          517.7MB

          MD5

          9b1e551cd585f8166cd937f2a0980f81

          SHA1

          15fd840efab66b5b385992882a57aa06eb84cb1d

          SHA256

          cfad0dcd5988f2f30d91b4c51bf68ff571ec988393934ecd7bcb876163f5ea66

          SHA512

          a1f633a81871cd972cb7f3d90cad12a536798e2239e8c5488409c8c2ab503187563e9a7779f48f665487536ba1cfbf0daa6bd52055ac87d7cb52bfd56588f430

        • memory/2068-188-0x0000000000400000-0x00000000004B0000-memory.dmp

          Filesize

          704KB

        • memory/3852-136-0x00007FF88ECB0000-0x00007FF88ECC0000-memory.dmp

          Filesize

          64KB

        • memory/3852-139-0x00007FF88C790000-0x00007FF88C7A0000-memory.dmp

          Filesize

          64KB

        • memory/3852-137-0x00007FF88ECB0000-0x00007FF88ECC0000-memory.dmp

          Filesize

          64KB

        • memory/3852-135-0x00007FF88ECB0000-0x00007FF88ECC0000-memory.dmp

          Filesize

          64KB

        • memory/3852-134-0x00007FF88ECB0000-0x00007FF88ECC0000-memory.dmp

          Filesize

          64KB

        • memory/3852-133-0x00007FF88ECB0000-0x00007FF88ECC0000-memory.dmp

          Filesize

          64KB

        • memory/3852-138-0x00007FF88C790000-0x00007FF88C7A0000-memory.dmp

          Filesize

          64KB

        • memory/3852-214-0x00007FF88ECB0000-0x00007FF88ECC0000-memory.dmp

          Filesize

          64KB

        • memory/3852-215-0x00007FF88ECB0000-0x00007FF88ECC0000-memory.dmp

          Filesize

          64KB

        • memory/3852-216-0x00007FF88ECB0000-0x00007FF88ECC0000-memory.dmp

          Filesize

          64KB

        • memory/3852-217-0x00007FF88ECB0000-0x00007FF88ECC0000-memory.dmp

          Filesize

          64KB

        • memory/4452-177-0x0000000180000000-0x000000018002D000-memory.dmp

          Filesize

          180KB

        • memory/4452-180-0x0000000000E60000-0x0000000000E61000-memory.dmp

          Filesize

          4KB