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Analysis

  • max time kernel
    140s
  • max time network
    156s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03/11/2022, 22:45

General

  • Target

    cc60666cf8baf4f357ba7313ca35879ad7799371ca03117953a1248b2af1ce7d.xls

  • Size

    217KB

  • MD5

    c7911de4f663065623db94da9ecdad27

  • SHA1

    99da7b8cdd23c8cf51b0c0b7273a0e942634119a

  • SHA256

    cc60666cf8baf4f357ba7313ca35879ad7799371ca03117953a1248b2af1ce7d

  • SHA512

    6ebb0b61faccb7700b8410f439636d7b15026a236157b22465586c479ac77f7d7b62c268f38884806c193e2a434e4e7a7979d191eb4fba349f99dbf2515e3b50

  • SSDEEP

    6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dglyY+TAQXTHGUMEyP5p6f5jQm75nT:1bGUMVWlbp

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 1 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\cc60666cf8baf4f357ba7313ca35879ad7799371ca03117953a1248b2af1ce7d.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:3540
    • 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:3060
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\NzFydzDeMZbgT\kFCHLEuVqnzhIS.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:4920
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:920

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\oxnv1.ooccxx

    Filesize

    745KB

    MD5

    3280aa443d42f20b4cf141374783dec9

    SHA1

    e7e73d64fe9420b9f924a6d78470b58c1a0bc3fb

    SHA256

    e47e3566e13e21c452848f0be74ef6ef26112f7974d6036eadf53711edc38398

    SHA512

    418e905d51bbb9fbd34b4f698fc59245d80711f57d56a2a59a390005dbe37dd3bb65c40148f21e67ab15858b2bec01f2ba13ef072fd50beb05733cdb7c593503

  • \Users\Admin\oxnv1.ooccxx

    Filesize

    745KB

    MD5

    3280aa443d42f20b4cf141374783dec9

    SHA1

    e7e73d64fe9420b9f924a6d78470b58c1a0bc3fb

    SHA256

    e47e3566e13e21c452848f0be74ef6ef26112f7974d6036eadf53711edc38398

    SHA512

    418e905d51bbb9fbd34b4f698fc59245d80711f57d56a2a59a390005dbe37dd3bb65c40148f21e67ab15858b2bec01f2ba13ef072fd50beb05733cdb7c593503

  • memory/3060-255-0x0000000180000000-0x000000018002F000-memory.dmp

    Filesize

    188KB

  • memory/3540-118-0x00007FF851770000-0x00007FF851780000-memory.dmp

    Filesize

    64KB

  • memory/3540-119-0x00007FF851770000-0x00007FF851780000-memory.dmp

    Filesize

    64KB

  • memory/3540-120-0x00007FF851770000-0x00007FF851780000-memory.dmp

    Filesize

    64KB

  • memory/3540-121-0x00007FF851770000-0x00007FF851780000-memory.dmp

    Filesize

    64KB

  • memory/3540-130-0x00007FF84DFE0000-0x00007FF84DFF0000-memory.dmp

    Filesize

    64KB

  • memory/3540-131-0x00007FF84DFE0000-0x00007FF84DFF0000-memory.dmp

    Filesize

    64KB