Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-11-2022 05:16

General

  • Target

    2022-11-04_0616.xls

  • Size

    217KB

  • MD5

    da4d6f1eb1224f7d5f563e86bebbf1fd

  • SHA1

    2cb3bb03a947a26f52b5c6714e609f8861d50daf

  • SHA256

    a04ad34d45b524a88a07f24983d8392bf5a930a4c7577db33f2e0c916778127d

  • SHA512

    2365cbf093cd251fae9c923e2ba940849c82d35f6d08348f0a662e2ef8205920cfd7eda3ad0aff290a3cb124009d622e7dc6bec5537f46b59ad65de1e25c68f5

  • SSDEEP

    6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dglyY+TAQXTHGUMEyP5p6f5jQm71nT:1bGUMVWlb9

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://app.clubdedocentes.com/storage/DCcq9ekgH99sI/

xlm40.dropper

http://linhkiendoc.com/app/payments/qoy5JqpLqrbsKl/

xlm40.dropper

http://sourcecool.com/throng/iOD/

Extracted

Family

emotet

Botnet

Epoch4

C2

45.235.8.30:8080

94.23.45.86:4143

119.59.103.152:8080

169.60.181.70:8080

164.68.99.3:8080

172.105.226.75:8080

107.170.39.149:8080

206.189.28.199:8080

1.234.2.232:8080

188.44.20.25:443

186.194.240.217:443

103.43.75.120:443

149.28.143.92:443

159.89.202.34:443

209.97.163.214:443

183.111.227.137:8080

129.232.188.93:443

139.59.126.41:443

110.232.117.186:8080

139.59.56.73:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Process spawned unexpected child process 2 IoCs

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

  • Downloads MZ/PE file
  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2022-11-04_0616.xls"
    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:5100
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4168
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\EyuyTELFSpymCfsEM\pHTXckaLH.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:216
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:3360

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\oxnv1.ooccxx

    Filesize

    745KB

    MD5

    573f0ff5cf0a2aa8d272effaa59fbe9d

    SHA1

    3c983122d5be57ae19ea872b70a04dc8fca0d911

    SHA256

    606348b3f63682a87125ac0ebd2f1f49b46526792267fb9559514f23f4538a4d

    SHA512

    8c668a14d904415abeac913a6c8f9db4c238a63e5568959b4a73ad8a3d11fa8c72630550effe8912dfe16e0a5d641b6b3ee9a7dda9bc3a7bca3b735e996bf9cc

  • C:\Users\Admin\oxnv1.ooccxx

    Filesize

    745KB

    MD5

    573f0ff5cf0a2aa8d272effaa59fbe9d

    SHA1

    3c983122d5be57ae19ea872b70a04dc8fca0d911

    SHA256

    606348b3f63682a87125ac0ebd2f1f49b46526792267fb9559514f23f4538a4d

    SHA512

    8c668a14d904415abeac913a6c8f9db4c238a63e5568959b4a73ad8a3d11fa8c72630550effe8912dfe16e0a5d641b6b3ee9a7dda9bc3a7bca3b735e996bf9cc

  • C:\Windows\System32\EyuyTELFSpymCfsEM\pHTXckaLH.dll

    Filesize

    745KB

    MD5

    573f0ff5cf0a2aa8d272effaa59fbe9d

    SHA1

    3c983122d5be57ae19ea872b70a04dc8fca0d911

    SHA256

    606348b3f63682a87125ac0ebd2f1f49b46526792267fb9559514f23f4538a4d

    SHA512

    8c668a14d904415abeac913a6c8f9db4c238a63e5568959b4a73ad8a3d11fa8c72630550effe8912dfe16e0a5d641b6b3ee9a7dda9bc3a7bca3b735e996bf9cc

  • memory/4168-142-0x0000000180000000-0x000000018002F000-memory.dmp

    Filesize

    188KB

  • memory/5100-135-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

    Filesize

    64KB

  • memory/5100-138-0x00007FFDF8030000-0x00007FFDF8040000-memory.dmp

    Filesize

    64KB

  • memory/5100-137-0x00007FFDF8030000-0x00007FFDF8040000-memory.dmp

    Filesize

    64KB

  • memory/5100-136-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

    Filesize

    64KB

  • memory/5100-132-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

    Filesize

    64KB

  • memory/5100-134-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

    Filesize

    64KB

  • memory/5100-133-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

    Filesize

    64KB