Malware Analysis Report

2025-01-02 12:17

Sample ID 240714-hb6zmszdqm
Target black.bat
SHA256 8ea56b9b4f79485aedb615161ba64c55950a6970f21dc0f2a7691dd66de91cd2
Tags
asyncrat default rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

8ea56b9b4f79485aedb615161ba64c55950a6970f21dc0f2a7691dd66de91cd2

Threat Level: Known bad

The file black.bat was found to be: Known bad.

Malicious Activity Summary

asyncrat default rat

AsyncRat

Async RAT payload

Blocklisted process makes network request

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-14 06:34

Signatures

N/A

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

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\black.bat"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A 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

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

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 $ h T h r e a d   =   [ S y s t e m . R u n t i m e . I n t e r o p S e r v i c e s . M a r s h a l ] : : G e t D e l e g a t e F o r F u n c t i o n P o i n t e r ( ( L o o k u p F u n c   k e r n e l 3 2 . d l l   C r e a t e T h r e a d ) , ( g e t D e l e g a t e T y p e   @ ( [ I n t P t r ] ,   [ U I n t 3 2 ] ,   [ I n t P t r ] ,   [ I n t P t r ] , [ U I n t 3 2 ] ,   [ I n t P t r ] ) ( [ I n t P t r ] ) ) ) . I n v o k e ( [ I n t P t r ] : : Z e r o , 0 , $ 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