Analysis

  • max time kernel
    150s
  • max time network
    160s
  • 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, 07:02

General

  • Target

    42543424254673870027753__2023-08-03_1457.doc

  • Size

    527.3MB

  • MD5

    034ac24d760c3e946b044c12032b40d9

  • SHA1

    04d3e42cad8f0a4005589d7a53d067df324768b9

  • SHA256

    4ec23d327a426c1b002c2c0ecebb54685b314ae3011c6978cefac00157ffc828

  • SHA512

    356a988864544d543ac7cdcc233535b86c772a03860463e3169e5c78f1efcd2782b840cdeb78667e43d4d16640a46dbc74cbb83a439d538d00a8e5d572f5297b

  • 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\42543424254673870027753__2023-08-03_1457.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:4476
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\080303.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3460
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\RmQIoWZDIgpPA\SKGEpusQrY.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:4128

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\080303.tmp

          Filesize

          546.7MB

          MD5

          4f214becc5f8ac8bd13adef8437f7002

          SHA1

          a3b804db0726191408db0dd6fd82c8d8bd5722d0

          SHA256

          d7282f411b6f68f5c3a1657eb37a0f550d9d966a169b9290043d9e93b5f18ba3

          SHA512

          4f852216ca25459b2e2f2961d8a7acb011cccbe712a3eb54677967b92ecb9289a4770de3b7716a52f96aa33233b04607e63070e00a5c05fae078e399b3d1d9fe

        • C:\Users\Admin\AppData\Local\Temp\080303.tmp

          Filesize

          546.7MB

          MD5

          4f214becc5f8ac8bd13adef8437f7002

          SHA1

          a3b804db0726191408db0dd6fd82c8d8bd5722d0

          SHA256

          d7282f411b6f68f5c3a1657eb37a0f550d9d966a169b9290043d9e93b5f18ba3

          SHA512

          4f852216ca25459b2e2f2961d8a7acb011cccbe712a3eb54677967b92ecb9289a4770de3b7716a52f96aa33233b04607e63070e00a5c05fae078e399b3d1d9fe

        • C:\Users\Admin\AppData\Local\Temp\080305.zip

          Filesize

          882KB

          MD5

          d347a9e713947d67f6f575738ef07cd7

          SHA1

          f51f3983960517b07bb97f5ba5495480a31c8c0f

          SHA256

          22babdda065e864cc6309f90833994a36353ae21d3a7be6e3aafaf51024448f0

          SHA512

          5aef4fe8dbf87c3ff7e11af5e76912ef4e91e51246935132ee38a404c1f86cc464b527c2d47750930472121a23d1741e7c8e57f5ce41904af0d065bf6555a651

        • C:\Windows\System32\RmQIoWZDIgpPA\SKGEpusQrY.dll

          Filesize

          546.7MB

          MD5

          4f214becc5f8ac8bd13adef8437f7002

          SHA1

          a3b804db0726191408db0dd6fd82c8d8bd5722d0

          SHA256

          d7282f411b6f68f5c3a1657eb37a0f550d9d966a169b9290043d9e93b5f18ba3

          SHA512

          4f852216ca25459b2e2f2961d8a7acb011cccbe712a3eb54677967b92ecb9289a4770de3b7716a52f96aa33233b04607e63070e00a5c05fae078e399b3d1d9fe

        • memory/3460-177-0x0000000180000000-0x000000018002D000-memory.dmp

          Filesize

          180KB

        • memory/3460-180-0x0000000001240000-0x0000000001241000-memory.dmp

          Filesize

          4KB

        • memory/4128-188-0x0000000000400000-0x00000000004B0000-memory.dmp

          Filesize

          704KB

        • memory/4476-136-0x00007FFCB8610000-0x00007FFCB8620000-memory.dmp

          Filesize

          64KB

        • memory/4476-135-0x00007FFCB8610000-0x00007FFCB8620000-memory.dmp

          Filesize

          64KB

        • memory/4476-137-0x00007FFCB8610000-0x00007FFCB8620000-memory.dmp

          Filesize

          64KB

        • memory/4476-134-0x00007FFCB8610000-0x00007FFCB8620000-memory.dmp

          Filesize

          64KB

        • memory/4476-139-0x00007FFCB6330000-0x00007FFCB6340000-memory.dmp

          Filesize

          64KB

        • memory/4476-133-0x00007FFCB8610000-0x00007FFCB8620000-memory.dmp

          Filesize

          64KB

        • memory/4476-138-0x00007FFCB6330000-0x00007FFCB6340000-memory.dmp

          Filesize

          64KB

        • memory/4476-216-0x00007FFCB8610000-0x00007FFCB8620000-memory.dmp

          Filesize

          64KB

        • memory/4476-215-0x00007FFCB8610000-0x00007FFCB8620000-memory.dmp

          Filesize

          64KB

        • memory/4476-218-0x00007FFCB8610000-0x00007FFCB8620000-memory.dmp

          Filesize

          64KB

        • memory/4476-217-0x00007FFCB8610000-0x00007FFCB8620000-memory.dmp

          Filesize

          64KB