Malware Analysis Report

2024-09-11 05:55

Sample ID 240527-pq3n4add35
Target blocknotif.bat
SHA256 a5718ae60be15412ad457aad7c602c6b43c40c18bb3ffd9eec26ac20de746620
Tags
discovery exploit
score
8/10

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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

a5718ae60be15412ad457aad7c602c6b43c40c18bb3ffd9eec26ac20de746620

Threat Level: Likely malicious

The file blocknotif.bat was found to be: Likely malicious.

Malicious Activity Summary

discovery exploit

Possible privilege escalation attempt

Modifies file permissions

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
File and Directory Permissions Modification
T1222
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-27 12:32

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-27 12:32

Reported

2024-05-27 12:35

Platform

win7-20240508-en

Max time kernel

118s

Max time network

121s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\blocknotif.bat"

Signatures

Possible privilege escalation attempt

exploit
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\takeown.exe N/A
N/A N/A C:\Windows\System32\icacls.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\takeown.exe N/A
N/A N/A C:\Windows\System32\icacls.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\takeown.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\takeown.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2944 wrote to memory of 1704 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\fsutil.exe
PID 2944 wrote to memory of 1704 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\fsutil.exe
PID 2944 wrote to memory of 1704 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\fsutil.exe
PID 2944 wrote to memory of 3004 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 2944 wrote to memory of 3004 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 2944 wrote to memory of 3004 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 2944 wrote to memory of 3036 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe
PID 2944 wrote to memory of 3036 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe
PID 2944 wrote to memory of 3036 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe
PID 2944 wrote to memory of 3040 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 2944 wrote to memory of 3040 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 2944 wrote to memory of 3040 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 2944 wrote to memory of 2136 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe
PID 2944 wrote to memory of 2136 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe
PID 2944 wrote to memory of 2136 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\blocknotif.bat"

C:\Windows\system32\fsutil.exe

fsutil dirty query C:

C:\Windows\System32\takeown.exe

takeown /F MusNotification.exe

C:\Windows\System32\icacls.exe

icacls MusNotification.exe /deny Everyone:(X)

C:\Windows\System32\takeown.exe

takeown /F MusNotificationUx.exe

C:\Windows\System32\icacls.exe

icacls MusNotificationUx.exe /deny Everyone:(X)

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-27 12:32

Reported

2024-05-27 12:35

Platform

win10v2004-20240508-en

Max time kernel

132s

Max time network

150s

Command Line

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

Signatures

Possible privilege escalation attempt

exploit
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\takeown.exe N/A
N/A N/A C:\Windows\System32\icacls.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\takeown.exe N/A
N/A N/A C:\Windows\System32\icacls.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\takeown.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\takeown.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1476 wrote to memory of 3364 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\fsutil.exe
PID 1476 wrote to memory of 3364 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\fsutil.exe
PID 1476 wrote to memory of 628 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 1476 wrote to memory of 628 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 1476 wrote to memory of 1680 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe
PID 1476 wrote to memory of 1680 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe
PID 1476 wrote to memory of 3984 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 1476 wrote to memory of 3984 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\takeown.exe
PID 1476 wrote to memory of 4172 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe
PID 1476 wrote to memory of 4172 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\icacls.exe

Processes

C:\Windows\system32\cmd.exe

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

C:\Windows\system32\fsutil.exe

fsutil dirty query C:

C:\Windows\System32\takeown.exe

takeown /F MusNotification.exe

C:\Windows\System32\icacls.exe

icacls MusNotification.exe /deny Everyone:(X)

C:\Windows\System32\takeown.exe

takeown /F MusNotificationUx.exe

C:\Windows\System32\icacls.exe

icacls MusNotificationUx.exe /deny Everyone:(X)

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.185:443 www.bing.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.185:443 www.bing.com tcp
US 8.8.8.8:53 185.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

N/A