Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09/11/2022, 16:49

General

  • Target
    68657d202fd69c0e09f0a962fe87a2041bc831386b2d0ba6b2e2fb702fcf3485.xls
  • Size 91KB
  • Sample221109-vb5ssscbbq
  • SHA256 68657d202fd69c0e09f0a962fe87a2041bc831386b2d0ba6b2e2fb702fcf3485
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    http://www.muyehuayi.com/cmp/8asA99KPsyA/v6lUsWbLen/

  • xlm40.dropper

    http://concivilpa.com.py/wp-admin/i3CQu9dzDrMW/

  • xlm40.dropper

    https://wijsneusmedia.nl/cgi-bin/kFB/

  • xlm40.dropper

    http://www.angloextrema.com.br/assets/oEt1yYckHKlnNIq/

Extracted

Family
  • emotet

Botnet
  • Epoch5

C2
  • 178.238.225.252:8080

  • 139.196.72.155:8080

  • 36.67.23.59:443

  • 103.56.149.105:8080

  • 37.44.244.177:8080

  • 85.25.120.45:8080

  • 202.134.4.210:7080

  • 78.47.204.80:443

  • 83.229.80.93:8080

  • 93.104.209.107:8080

  • 80.211.107.116:8080

  • 165.22.254.236:8080

  • 104.244.79.94:443

  • 185.148.169.10:8080

  • 190.145.8.4:443

  • 175.126.176.79:8080

  • 139.59.80.108:8080

  • 188.165.79.151:443

  • 128.199.217.206:443

  • 64.227.55.231:8080

ecs1.plain
eck1.plain

Signatures

  • Emotet

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

  • Process spawned unexpected child process 4 IoCs

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

  • Downloads MZ/PE file
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 8 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 24 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 16 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\68657d202fd69c0e09f0a962fe87a2041bc831386b2d0ba6b2e2fb702fcf3485.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:1980
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4068
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\PRiedXBWdWaM\TZeYal.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:4908
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4832
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\AmCcbPNlO\vyzvqrTzeMNjburG.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:1992
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3152
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\AEcaVkJiejIcqcYn\igCnJLhadmNhlVEz.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:5040
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\CSuTNSEykGmDsd\Gvhx.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:1656

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        elv1.ooocccxxx

        • Path C:\Users\Admin\elv1.ooocccxxx
        • Size 434KB
        • SHA256 9edeb044af1a98169a0cb28994c1cff70def8643c8445a267163e6b3315495a2
        • MD5 SHA1 SHA512 SSDEEP

        elv2.ooocccxxx

        • Path C:\Users\Admin\elv2.ooocccxxx
        • Size 434KB
        • SHA256 a07105d9cd40b5dd8c884816b303db1902ef9ed20ee42bc77ab59062b11cc596
        • MD5 SHA1 SHA512 SSDEEP

        elv3.ooocccxxx

        • Path C:\Users\Admin\elv3.ooocccxxx
        • Size 434KB
        • SHA256 321588476d636a108c9892ac90fc25d0e220704b193bd26cc4cd387ce839295b
        • MD5 SHA1 SHA512 SSDEEP

        elv4.ooocccxxx

        • Path C:\Users\Admin\elv4.ooocccxxx
        • Size 434KB
        • SHA256 ca52ad02f837d67faffe0404bbbe4b38d0892391010b58465506db2da7ac8dc7
        • MD5 SHA1 SHA512 SSDEEP

        elv1.ooocccxxx

        • Path \Users\Admin\elv1.ooocccxxx
        • Size 434KB
        • SHA256 9edeb044af1a98169a0cb28994c1cff70def8643c8445a267163e6b3315495a2
        • MD5 SHA1 SHA512 SSDEEP

        elv2.ooocccxxx

        • Path \Users\Admin\elv2.ooocccxxx
        • Size 434KB
        • SHA256 a07105d9cd40b5dd8c884816b303db1902ef9ed20ee42bc77ab59062b11cc596
        • MD5 SHA1 SHA512 SSDEEP

        elv3.ooocccxxx

        • Path \Users\Admin\elv3.ooocccxxx
        • Size 434KB
        • SHA256 321588476d636a108c9892ac90fc25d0e220704b193bd26cc4cd387ce839295b
        • MD5 SHA1 SHA512 SSDEEP

        elv4.ooocccxxx

        • Path \Users\Admin\elv4.ooocccxxx
        • Size 434KB
        • SHA256 ca52ad02f837d67faffe0404bbbe4b38d0892391010b58465506db2da7ac8dc7
        • MD5 SHA1 SHA512 SSDEEP

        memory/1980-133-0x00007FFF49220000-0x00007FFF49230000-memory.dmp

        memory/1980-132-0x00007FFF49220000-0x00007FFF49230000-memory.dmp

        memory/1980-123-0x00007FFF4CAC0000-0x00007FFF4CAD0000-memory.dmp

        memory/1980-122-0x00007FFF4CAC0000-0x00007FFF4CAD0000-memory.dmp

        memory/1980-120-0x00007FFF4CAC0000-0x00007FFF4CAD0000-memory.dmp

        memory/1980-121-0x00007FFF4CAC0000-0x00007FFF4CAD0000-memory.dmp

        memory/4068-263-0x0000000180000000-0x0000000180030000-memory.dmp