Analysis

  • max time kernel
    148s
  • max time network
    151s
  • 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, 09:39

General

  • Target

    954895897851030__2023-08-03_0953.doc

  • Size

    502.3MB

  • MD5

    a59e9fe46fe7ccd8c74b1dc39553d1a5

  • SHA1

    6b2699157dd7bb19cdb7f0ffb959c20c90318e9c

  • SHA256

    4792472bd90dab5885a789793a3309109b7f8d305203faa011d92b0efdf1720b

  • SHA512

    cfc9951ccf2e7001184b71855c1074c5c8a74b8739494121f5df6f8151d90af6ff5f9ea6b524f71fc4d5b3a3ded608172372c49cb9f7771c6594cb19d179435d

  • 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 3 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\954895897851030__2023-08-03_0953.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:3628
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\104507.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\RzlYCkOOLmwBH\vGfuudgBaRobcxE.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:744

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\104507.tmp

          Filesize

          516.7MB

          MD5

          17aa8e88ec9a9880480f13ec5355ac22

          SHA1

          7c342e547e70d4d6daae44d4bf0e66d67b06de12

          SHA256

          181491fae77d98ce9bb1deddc6c1b53da04f9994c55faf96c5c4bee3c2105097

          SHA512

          1323637048423882f84baf4fec83fb269f2c0aec9ef40445e487f22a898bdc4992826b4b5891d2fe2cacd58723cadffc1294cf205c9291b405ef96b4fe59ae43

        • C:\Users\Admin\AppData\Local\Temp\104507.tmp

          Filesize

          516.7MB

          MD5

          17aa8e88ec9a9880480f13ec5355ac22

          SHA1

          7c342e547e70d4d6daae44d4bf0e66d67b06de12

          SHA256

          181491fae77d98ce9bb1deddc6c1b53da04f9994c55faf96c5c4bee3c2105097

          SHA512

          1323637048423882f84baf4fec83fb269f2c0aec9ef40445e487f22a898bdc4992826b4b5891d2fe2cacd58723cadffc1294cf205c9291b405ef96b4fe59ae43

        • C:\Users\Admin\AppData\Local\Temp\104512.zip

          Filesize

          852KB

          MD5

          b68294947488080ff0a99def9ed22c4b

          SHA1

          8bf91771e28c84adb2ad80e92e9d4e13e6c52b6c

          SHA256

          ae869a73754e3cd48c17ca12821abf2d188aeea7603b412f4fc7d5d0b6b2d9a3

          SHA512

          68943596f0cac042deddd5893aba1d625cb2420238f858b5a0a372c932228e4fc7f4a0ca9cb1fe84852949137c40192058659ed058f2c0b5d7b1730448d2ad41

        • C:\Windows\System32\RzlYCkOOLmwBH\vGfuudgBaRobcxE.dll

          Filesize

          516.7MB

          MD5

          17aa8e88ec9a9880480f13ec5355ac22

          SHA1

          7c342e547e70d4d6daae44d4bf0e66d67b06de12

          SHA256

          181491fae77d98ce9bb1deddc6c1b53da04f9994c55faf96c5c4bee3c2105097

          SHA512

          1323637048423882f84baf4fec83fb269f2c0aec9ef40445e487f22a898bdc4992826b4b5891d2fe2cacd58723cadffc1294cf205c9291b405ef96b4fe59ae43

        • C:\Windows\System32\RzlYCkOOLmwBH\vGfuudgBaRobcxE.dll

          Filesize

          516.7MB

          MD5

          17aa8e88ec9a9880480f13ec5355ac22

          SHA1

          7c342e547e70d4d6daae44d4bf0e66d67b06de12

          SHA256

          181491fae77d98ce9bb1deddc6c1b53da04f9994c55faf96c5c4bee3c2105097

          SHA512

          1323637048423882f84baf4fec83fb269f2c0aec9ef40445e487f22a898bdc4992826b4b5891d2fe2cacd58723cadffc1294cf205c9291b405ef96b4fe59ae43

        • memory/744-191-0x0000000002240000-0x00000000022F0000-memory.dmp

          Filesize

          704KB

        • memory/744-185-0x0000000002240000-0x00000000022F0000-memory.dmp

          Filesize

          704KB

        • memory/2176-179-0x0000000180000000-0x000000018002D000-memory.dmp

          Filesize

          180KB

        • memory/2176-182-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

          Filesize

          4KB

        • memory/3628-134-0x00007FFE414D0000-0x00007FFE414E0000-memory.dmp

          Filesize

          64KB

        • memory/3628-136-0x00007FFE414D0000-0x00007FFE414E0000-memory.dmp

          Filesize

          64KB

        • memory/3628-137-0x00007FFE414D0000-0x00007FFE414E0000-memory.dmp

          Filesize

          64KB

        • memory/3628-139-0x00007FFE3F030000-0x00007FFE3F040000-memory.dmp

          Filesize

          64KB

        • memory/3628-138-0x00007FFE3F030000-0x00007FFE3F040000-memory.dmp

          Filesize

          64KB

        • memory/3628-135-0x00007FFE414D0000-0x00007FFE414E0000-memory.dmp

          Filesize

          64KB

        • memory/3628-133-0x00007FFE414D0000-0x00007FFE414E0000-memory.dmp

          Filesize

          64KB

        • memory/3628-218-0x00007FFE414D0000-0x00007FFE414E0000-memory.dmp

          Filesize

          64KB

        • memory/3628-220-0x00007FFE414D0000-0x00007FFE414E0000-memory.dmp

          Filesize

          64KB

        • memory/3628-219-0x00007FFE414D0000-0x00007FFE414E0000-memory.dmp

          Filesize

          64KB

        • memory/3628-221-0x00007FFE414D0000-0x00007FFE414E0000-memory.dmp

          Filesize

          64KB