Analysis

  • max time kernel
    134s
  • max time network
    152s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03-11-2022 22:16

General

  • Target

    f93a92214d9ca85806b724874e92660f4aeb4dee12c112fe3f8fe9c7dd21d0a2.xls

  • Size

    217KB

  • MD5

    8a6d08b0e74aeb149c8180cfc12cae75

  • SHA1

    5ba3657d4dbb3cdf7adfb2729c85245bac823841

  • SHA256

    f93a92214d9ca85806b724874e92660f4aeb4dee12c112fe3f8fe9c7dd21d0a2

  • SHA512

    74e166df3c4f9945e9257da6ffe4cf5d5f6ded584668f05c93494d4ba1bc7e3f78bf18451d424263e2aa2839961f60b1de92bd970f0bcb6819357edae9b72cf4

  • SSDEEP

    6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dglyY+TAQXTHGUMEyP5p6f5jQm7JnT:1bGUMVWlb5

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\f93a92214d9ca85806b724874e92660f4aeb4dee12c112fe3f8fe9c7dd21d0a2.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:4468
    • 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:4604
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\BIAAYhTEAQkA\DtuvrJPhnQWk.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:4456
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4420

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\oxnv1.ooccxx

    Filesize

    745KB

    MD5

    fe24d6be1c3646f5e9ff906043cbf39d

    SHA1

    b241c3a1a33fe180662f3d29252576312d5070d7

    SHA256

    2c7a14ca8f06d7cc9081c5a0e1d89a4ad7fb92b1e6b08c5dfda876fbf1e3fbe2

    SHA512

    ddb247006a1de312fe36687ec22345de056de0db4f09a53a43a5a843c840ac1b9006b63d9901404980621c4623aad8092ae4ac19bde7baf54be2a2aa7f05ec34

  • \Users\Admin\oxnv1.ooccxx

    Filesize

    745KB

    MD5

    fe24d6be1c3646f5e9ff906043cbf39d

    SHA1

    b241c3a1a33fe180662f3d29252576312d5070d7

    SHA256

    2c7a14ca8f06d7cc9081c5a0e1d89a4ad7fb92b1e6b08c5dfda876fbf1e3fbe2

    SHA512

    ddb247006a1de312fe36687ec22345de056de0db4f09a53a43a5a843c840ac1b9006b63d9901404980621c4623aad8092ae4ac19bde7baf54be2a2aa7f05ec34

  • memory/4420-275-0x0000000000000000-mapping.dmp

  • memory/4456-265-0x0000000000000000-mapping.dmp

  • memory/4468-120-0x00007FFBD4570000-0x00007FFBD4580000-memory.dmp

    Filesize

    64KB

  • memory/4468-121-0x00007FFBD4570000-0x00007FFBD4580000-memory.dmp

    Filesize

    64KB

  • memory/4468-122-0x00007FFBD4570000-0x00007FFBD4580000-memory.dmp

    Filesize

    64KB

  • memory/4468-123-0x00007FFBD4570000-0x00007FFBD4580000-memory.dmp

    Filesize

    64KB

  • memory/4468-132-0x00007FFBD1780000-0x00007FFBD1790000-memory.dmp

    Filesize

    64KB

  • memory/4468-133-0x00007FFBD1780000-0x00007FFBD1790000-memory.dmp

    Filesize

    64KB

  • memory/4604-254-0x0000000000000000-mapping.dmp

  • memory/4604-257-0x0000000180000000-0x000000018002F000-memory.dmp

    Filesize

    188KB